From a73987237450211191f09423ee21d308155bd3d6 Mon Sep 17 00:00:00 2001 From: Shteryana Shopova Date: Wed, 8 Dec 2010 14:30:25 +0000 Subject: [PATCH] Add bsnmpd(1)'s SNMP client tools (including SNMPv3 support) to the base system. Sponsored by: The FreeBSD Foundation (the SNMPv3 bits), Google Summer of Code 2005 Reviewed by: philip@ (mostly), bz@ (earlier version based on p4 ch124545) Approved by: philip@ --- usr.sbin/bsnmpd/Makefile | 3 +- usr.sbin/bsnmpd/tools/Makefile | 7 + usr.sbin/bsnmpd/tools/Makefile.inc | 13 + usr.sbin/bsnmpd/tools/bsnmptools/Makefile | 28 + usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.1 | 401 ++++ usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.c | 1275 ++++++++++ usr.sbin/bsnmpd/tools/libbsnmptools/Makefile | 14 + .../bsnmpd/tools/libbsnmptools/bsnmpimport.c | 971 ++++++++ .../bsnmpd/tools/libbsnmptools/bsnmpmap.c | 1018 ++++++++ usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c | 1287 ++++++++++ usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.h | 95 + .../bsnmpd/tools/libbsnmptools/bsnmptools.c | 2121 +++++++++++++++++ .../bsnmpd/tools/libbsnmptools/bsnmptools.h | 331 +++ 13 files changed, 7563 insertions(+), 1 deletion(-) create mode 100644 usr.sbin/bsnmpd/tools/Makefile create mode 100644 usr.sbin/bsnmpd/tools/Makefile.inc create mode 100644 usr.sbin/bsnmpd/tools/bsnmptools/Makefile create mode 100644 usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.1 create mode 100644 usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.c create mode 100644 usr.sbin/bsnmpd/tools/libbsnmptools/Makefile create mode 100644 usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpimport.c create mode 100644 usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpmap.c create mode 100644 usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c create mode 100644 usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.h create mode 100755 usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.c create mode 100644 usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.h diff --git a/usr.sbin/bsnmpd/Makefile b/usr.sbin/bsnmpd/Makefile index c948108f4f41..632753ddc9ea 100644 --- a/usr.sbin/bsnmpd/Makefile +++ b/usr.sbin/bsnmpd/Makefile @@ -2,6 +2,7 @@ SUBDIR= gensnmptree \ bsnmpd \ - modules + modules \ + tools .include diff --git a/usr.sbin/bsnmpd/tools/Makefile b/usr.sbin/bsnmpd/tools/Makefile new file mode 100644 index 000000000000..3ffc01e67764 --- /dev/null +++ b/usr.sbin/bsnmpd/tools/Makefile @@ -0,0 +1,7 @@ +# $FreeBSD$ +# Author: Shteryana Shopova + +SUBDIR= libbsnmptools \ + bsnmptools + +.include diff --git a/usr.sbin/bsnmpd/tools/Makefile.inc b/usr.sbin/bsnmpd/tools/Makefile.inc new file mode 100644 index 000000000000..e08fe2692f3e --- /dev/null +++ b/usr.sbin/bsnmpd/tools/Makefile.inc @@ -0,0 +1,13 @@ +# $FreeBSD$ +# Author: Shteryana Shopova + +BINDIR?= /usr/bin + +CFLAGS+= -I. -I${.CURDIR} + +.if exists(${.OBJDIR}/../libbsnmptools) +LIBBSNMPTOOLSDIR= ${.OBJDIR}/../libbsnmptools +.else +LIBBSNMPTOOLSDIR= ${.CURDIR}/../libbsnmptools +.endif +LIBBSNMPTOOLS= ${LIBBSNMPTOOLSDIR}/libbsnmptools.a diff --git a/usr.sbin/bsnmpd/tools/bsnmptools/Makefile b/usr.sbin/bsnmpd/tools/bsnmptools/Makefile new file mode 100644 index 000000000000..311b1a988dfd --- /dev/null +++ b/usr.sbin/bsnmpd/tools/bsnmptools/Makefile @@ -0,0 +1,28 @@ +# $FreeBSD$ +# Author: Shteryana Shopova + +.include + +.PATH: ${.CURDIR} + +PROG= bsnmpget + +DPADD+= ${LIBBSNMP} ${LIBBSNMPTOOLS} +LDADD+= -lbsnmp -lbsnmptools +CFLAGS+= -I${.CURDIR}/../libbsnmptools +LDFLAGS+= -L${LIBBSNMPTOOLSDIR} + +.if ${MK_OPENSSL} != "no" +DPADD+= ${LIBCRYPTO} +LDADD+= -lcrypto +.endif + +LINKS= ${DESTDIR}/usr/bin/bsnmpget ${DESTDIR}/usr/bin/bsnmpwalk +LINKS+= ${DESTDIR}/usr/bin/bsnmpget ${DESTDIR}/usr/bin/bsnmpset + +MAN= bsnmpget.1 + +MLINKS= bsnmpget.1 bsnmpwalk.1 +MLINKS+= bsnmpget.1 bsnmpset.1 + +.include diff --git a/usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.1 b/usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.1 new file mode 100644 index 000000000000..aa3f911e94ad --- /dev/null +++ b/usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.1 @@ -0,0 +1,401 @@ +.\" +.\" Copyright (c) 2010 The FreeBSD Foundation +.\" All rights reserved. +.\" +.\" Portions of this documentation were written by Shteryana Sotirova Shopova +.\" under sponsorship from the FreeBSD Foundation. +.\" +.\" Copyright (c) 2005-2007 The FreeBSD Project. +.\" All rights reserved. +.\" +.\" Author: Shteryana Shopova +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd September 17, 2007 +.Dt BSNMPGET 1 +.Os +.Sh NAME +.Nm bsnmpget , +.Nm bsnmpwalk , +.Nm bsnmpset +.Nd "simple tools for querying SNMP agents" +.Sh SYNOPSIS +.Nm +.Op Fl aDdehnK +.Op Fl A Ar options +.Op Fl b Ar buffersize +.Op Fl C Ar options +.Op Fl I Ar options +.Op Fl i Ar filelist +.Op Fl l Ar filename +.Op Fl M Ar max-repetitions +.Op Fl N Ar non-repeaters +.Op Fl o Ar output +.Op Fl P Ar options +.Op Fl p Ar pdu +.Op Fl r Ar retries +.Op Fl s Ar [trans::][community@][server][:port] +.Op Fl t Ar timeout +.Op Fl U Ar options +.Op Fl v Ar version +.Op Ar OID ... +.Pp +.Nm bsnmpwalk +.Op Fl dhnK +.Op Fl A Ar options +.Op Fl b Ar buffersize +.Op Fl C Ar options +.Op Fl I Ar options +.Op Fl i Ar filelist +.Op Fl l Ar filename +.Op Fl o Ar output +.Op Fl P Ar options +.Op Fl r Ar retries +.Op Fl s Ar [trans::][community@][server][:port] +.Op Fl t Ar timeout +.Op Fl U Ar options +.Op Fl v Ar version +.Op Ar OID ... +.Pp +.Nm bsnmpset +.Op Fl adehnK +.Op Fl A Ar options +.Op Fl b Ar buffersize +.Op Fl C Ar options +.Op Fl I Ar options +.Op Fl i Ar filelist +.Op Fl l Ar filename +.Op Fl o Ar output +.Op Fl P Ar options +.Op Fl r Ar retries +.Op Fl s Ar [trans::][community@][server][:port] +.Op Fl t Ar timeout +.Op Fl U Ar options +.Op Fl v Ar version +.Ar OID Ns = Ar syntax Ns : Ns Ar value +.Op Ar OID Ns = Ar syntax Ns : Ns Ar value ... +.Sh DESCRIPTION +.Nm , +.Nm bsnmpwalk +and +.Nm bsnmpset +are simple tools for retrieving management information from and setting +management information to a Simple Network Managment Protocol (SNMP) agent. +.Pp +Depending on the options +.Nm bsnmpget +constructs either a SMNP GetRequest, GetNextRequest +or a GetBulkRequest packet, fills in the object identifiers (OIDs) of the +objects whose values will be retrived, waits for a response and prints it if +received successfully. +.Pp +.Nm Bsnmpwalk +queries an agent with SMNP GetNextRequest packets, +asking for values of OID instances that are a part of the object subtree +rooted at the provided OIDs. +.Pp +.Nm Bsnmpset +constructs a SMNP SetRequest packet, fills in the OIDs (object identifiers), +syntaxes and values of the objects whose values are to be set and waits for a +responce from server. +.Sh OPTIONS +.Pp +The options are as follows (not all apply to all three programs): +.Bl -tag -width ".It Fl D Ar options" +.It Fl A Ar options +Authentication options to use with SNMPv3 PDUs +.Bl -tag -width +.It Cm proto=[md5|sha] +The protocol to use when calculating the PDU message digest. +.It Cm key=authkey +A binary localized authentication key to use when calculating the PDU message +digest. +.El +.Pp +By default SNMPv3 PDUs are sent unauthenticated. +.It Fl a +Skip any sanity checks when adding OIDs to a Protocol Data Unit (PDU): +ingore syntax/access type, allow adding of non-leaf objects for GetPdu and +read-only objects to a SetPDU. +.It Fl b Ar buffersize +Tune the size of buffers used to send and receive packets. +The default size is 10000 bytes which should be enough unless an agent sends +a really large octetstring. +The maximum allowed length is 65535 according to the Structure of Management +Information (SMIv2). +.It Fl C Ar options +The context to query with SNMPv3 PDUs. +.Bl -tag -width +.It Cm context=name +The context name. Default is "" (empty). +.It Cm context-engine=engine-id +The SNMP Engine ID of the context to query with SNMPv3 PDUs, represented as +binary octet string. By default, this is set to the Engine ID of the SNMP agent. +.El +.It Fl D +Perform SNMP USM Engine Discovery, rather than sending a request for the value +of a specific object. +.It Fl d +Turn on debugging. +This option will cause the packets sent and received to be dumped to the +terminal. +.It Fl e +Retry on error. +If an error is returned in the response PDU, resend the request removing the +variable that caused the error until a valid response is received. +This is only usefull for a GetRequest- and a GetNextRequest-PDU. +.It Fl h +Print a short help text with default values for various options. +.It Fl I Ar options +Load each MIB description file from the given list to translate symbolic +object names to their numerical representation and vice versa. +Use the other options to obtain a non-default behaviour: +.Bl -tag -width +.It Cm cut=OID +Specifies the initial OID that was cut by +.Xr gensnmpdef 1 +when producing the MIB description file. +The default value is .iso(1).org(3).dod(6) which is what should have been +used for all the files installed under /usr/share/snmp/defs/ . +Use this only if you generated your own files, providing a '-c' option to +.Xr gensnmpdef 1 . +.It Cm path=filedir +The directory where files in the list will be searched. +The default is +.Pa /usr/share/snmp/defs/ . +.It Cm file=filelist +A comma separated list of files to which the two options above will apply. +.El +.Pp +The file suboption has to come after the other suboptions so that their +non-default values will be applied to the list of files. +The order of the other suboptions before each file suboption can be random. +Suboptions may be separated either by commas or by spaces. +If using spaces make sure the entire option string is one argument, for +example using quotes. +.It Fl i Ar filelist +List of MIB description files produced by +.Xr gensnmpdef 1 which +.Nm bsnmpget , +.Nm bsnmpwalk +or +.Nm bsnmpset +will search to translate numerical OIDs to their symbolic object names. +Multiple files can be provided either giving this option multiple times +or a comma separated list of file names. +If a filename begins with a letter the default directory, +/usr/share/snmp/defs/ , +will be searched. +.It Fl K +Calculate and display the localized authentication and privacy keys +corresponding to a plain text password. The password is obtain via the +environment. Additionally, if one or more OIDs are specified, the calculated +keys are used when processing the SNMPv3 requests. +.It Fl l Ar filename +The path of the posix local (unix domain) socket if local +transport is used. +.It Fl M Ar max-repetitions +The value for the max-repetitions field in a GetBulk PDU. +Default is 1. +.It Fl N Ar non-repeaters +The value for the non-repeaters field in a GetBulk PDU. +Default is 0. +.It Fl n +Only use numerical representations for input and output OIDs and do not +try to resolve symbolic object names. +Note that +.Nm bsnmpget , +.Nm bsnmpwalk +and +.Nm bsnmpset +will print numerical OIDs anyway if the corresponding string representation +is not found in the MIB description files. +.It Fl o Ar [quiet|short|verbose] +The format used to print the received response. +Quiet only prints values, short (default) prints an abbreviated OID +representation and the value. +In addition to the short output verbose prints the type before the value. +.It Fl P Ar options +Privacy options to use with SNMPv3 PDUs +.Bl -tag -width +.It Cm proto=[aes|des] +The protocol to use when encypting/decrypting SNMPv3 PDU data. +.It Cm key=privkey +A binary localized privacy key to use when encypting/decrypting SNMPv3 PDU data. +.El +.Pp +By default plain text SNMPv3 PDUs are sent. +.It Fl p Ar [get|getnext|getbulk] +The PDU type to send by +.Nm bsmpget . +Default is get. +.It Fl r Ar retries +Number of resends of request packets before giving up if the agent does +not respond after the first try. +Default is 3. +.It Fl s Ar [trans::] Ns Ar [community@] Ns Ar [server] Ns Ar [:port] +Each of the server specification components is optional but at least one +has to be provided if '-s' option is used. +The server specification is constructed in the following manner: +.Bl -tag -width +.It Cm trans:: +Transport type may be one of udp, stream or dgram. +If this option is not provided an udp inet/inet6 socket will be used, which +is the most common. +Stream stands for a posix local stream socket and a posix local datagram +socket will be used if dgram is specified. +.It Cm community@ +Specify an SNMP community string to be used when sending packets. +If the option is skipped the default "public" will be used for +.Nm +and +.Nm bsnmpwalk +and the default "private" community string will be used for +.Nm bsnmpset . +.It Cm server +This might be either the IP address or the hostname where the agent is +listening. +The default is 'localhost'. +.It Cm port +The destination port to send the requests to. +This is useful if the SNMP agent listens on a non-default port. +Default is given by the 'snmp' entry in /etc/services, port 161. +.El +.It Fl t Ar timeout +Number of seconds before resending a request packet if the agent does +not respond. +The default value is 3 seconds. +.It Fl U Ar options +User credentials when sending SNMPv3 PDUs. +.Bl -tag -width +.It Cm engine=id +The Engine ID of the SNMP agent represented as a binary octet string. +.It Cm engine-boots=value +The value of the snmpEngineBoots of the SNMP agent. +.It Cm engine-time=value +The value of the snmpEngineTime of the SNMP agent. +.Pp +If any of the above is not specified, SNMP USM Engine Discovery is attempted. +This is also the default behavior. +.It Cm name=username +The USM user name to include in the SNMPv3 PDUs. By default, the user name is +obtain via the environment +.El +.It Fl v Ar version +The SNMP protocol version to use when sending requests. SNMP versions 1, 2 and +3 are supported. +If no version option is provided +.Nm bsnmpget , +.Nm bsnmpwalk +and +.Nm bsnmpset +will use version 2. +Note that GetBulkRequest-PDUs were introduced in SNMPv2 thus setting the +version to 1 is incompatiable with sending a GetBulk PDU. +.It OID +The object identifier whose value to retrive. +At least one OID should be provided for +.Nm bsnmpget +to be able to send a request. +.Pp +For +.Nm bsnmpwalk +this is the root object identifier of the subtree whose values are to be +retrived. +If no OID is provided +.Nm bsnmpwalk +will walk the mib2 subtree rooted +at .iso(1).org(3).dod(6).internet(1).mgmt(2).mib2(1) . +.Pp +Any of the formats used to print a single variable +is valid as input OID: +.Bl -tag -width +.It 1.3.6.1.2.1.25.1.1.0 +.It sysDescr +.It ifPhysAddress.1 +.It ifRcvAddressStatus.2.6.255.255.255.255.255.255 +.It ifRcvAddressType[2,ff:ff:ff:ff:ff:ff] +.It ifRcvAddressStatus[Integer:1,OctetString:ff:ff:ff:ff:ff:ff] +(requires '-o verbose' option) +.El +.Pp +Square brackets are used to denote an entry's indexes. +When used in an input OID, the square brackets may have to be +escaped or the OID has to be quoted to protect it from the shell. +Note there is no difference between ifName.1 and "ifName[1]". +.It OID Ns = Ns Ar [syntax Ns :] Ns Ar value +The object identifier with its syntax type and value that is to be set. +At least one such string OID=[syntax:]value should be provided to +.Nm bsnmpset +to be able to send a request. +.Bl -tag -width +.It Cm OID +OID may be input as a string, a string followed by a random number of integers +(suboids) separated by dots, a sequence of integers separated by dots - that is +if '-n' options is used - and in such case a syntax is required for every value, +or a string followed by square brackets (used to denote an entry's indexes) and +corresponding indexes. +Any of formats used to print a single variable by +.Nm bsnmpset is +valid for inpit OID as well: +.Bl -tag -width +.It 1.3.6.1.2.1.25.1.1.0=TimeTicks:537615486 +.It sysLocation=OctetString:"@ Home" (with '-o verbose' option) +.It sysLocation.0="@ Home" +.It 1.3.6.1.2.1.2.2.1.6.1=OctetString:ffffffffffff +.It ifPhysAddress.1="00:02:b3:1d:1c:a3" +.It ifRcvAddressStatus.1.6.255.255.255.255.255.255=1 +.It "ifRcvAddressStatus[Integer:1,OctetString:ff:ff:ff:ff:ff:ff]=Integer:1" +(with '-o verbose' option) +.El +.It Cm syntax +where syntax string is one of : +Integer, OctetString, OID, IpAddress, Counter32, Gauge, TimeTicks, Counter64. +.It Cm value +The value to be set - IP address in form of u.u.u.u - for example +1.3.1.6.1.2.0=IpAddress:192.168.0.1, strings require inverted-commas if they +contain any special characters or spaces, all other numeric types don't. +.El +.Sh ENVIRONMENT +.Nm , +.Nm bsnmpwalk +and +.Nm bsnmpset +use the following environment variables: +.Bl -tag -width SNMPAUTH +.It Ev SNMPAUTH +Specifies a default SNMP USM authentication protocol. +.It Ev SNMPPRIV +Specifies a default SNMP USM privacy protocol. +.It Ev SNMPUSER +Specifies a default SNMP USM user name. +.It Ev SNMPPASSWD +Specifies the SNMP USM plain text password to use when calculating localized +authentication and privacy keys. If this variable exists in the environment, +SMNPv3 is the default version to use for outgoing requests. +.Sh SEE ALSO +.Xr gensnmpdef 1 +.Sh AUTHORS +.An Shteryana Shopova Aq syrinx@FreeBSD.org diff --git a/usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.c b/usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.c new file mode 100644 index 000000000000..c05a05a81e25 --- /dev/null +++ b/usr.sbin/bsnmpd/tools/bsnmptools/bsnmpget.c @@ -0,0 +1,1275 @@ +/*- + * Copyright (c) 2005-2006 The FreeBSD Project + * All rights reserved. + * + * Author: Shteryana Shopova + * + * Redistribution of this software and documentation and use in source and + * binary forms, with or without modification, are permitted provided that + * the following conditions are met: + * + * 1. Redistributions of source code or documentation must retain the above + * copyright notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Bsnmpget and bsnmpwalk are simple tools for querying SNMP agents, + * bsnmpset can be used to set MIB objects in an agent. + * + * $FreeBSD$ + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include "bsnmptc.h" +#include "bsnmptools.h" + +static const char *program_name = NULL; +static enum program_e { + BSNMPGET, + BSNMPWALK, + BSNMPSET +} program; + +/* ***************************************************************************** + * Common bsnmptools functions. + */ +static void +usage(void) +{ + fprintf(stderr, +"Usage:\n" +"%s %s [-A options] [-b buffersize] [-C options] [-I options]\n" +"\t[-i filelist] [-l filename]%s [-o output] [-P options]\n" +"\t%s[-r retries] [-s [trans::][community@][server][:port]]\n" +"\t[-t timeout] [-U options] [-v version]%s\n", + program_name, + (program == BSNMPGET) ? "[-aDdehnK]" : + (program == BSNMPWALK) ? "[-dhnK]" : + (program == BSNMPSET) ? "[-adehnK]" : + "", + (program == BSNMPGET) ? " [-M max-repetitions] [-N non-repeaters]" : "", + (program == BSNMPGET) ? "[-p pdu] " : "", + (program == BSNMPGET) ? " OID [OID ...]" : + (program == BSNMPWALK || program == BSNMPSET) ? " [OID ...]" : + "" + ); +} + +static int32_t +parse_max_repetitions(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + uint32_t v; + + assert(opt_arg != NULL); + + v = strtoul(opt_arg, (void *) NULL, 10); + + if (v > SNMP_MAX_BINDINGS) { + warnx("Max repetitions value greater than %d maximum allowed.", + SNMP_MAX_BINDINGS); + return (-1); + } + + SET_MAXREP(snmptoolctx, v); + return (2); +} + +static int32_t +parse_non_repeaters(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + uint32_t v; + + assert(opt_arg != NULL); + + v = strtoul(opt_arg, (void *) NULL, 10); + + if (v > SNMP_MAX_BINDINGS) { + warnx("Non repeaters value greater than %d maximum allowed.", + SNMP_MAX_BINDINGS); + return (-1); + } + + SET_NONREP(snmptoolctx, v); + return (2); +} + +static int32_t +parse_pdu_type(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + assert(opt_arg != NULL); + + if (strcasecmp(opt_arg, "getbulk") == 0) + SET_PDUTYPE(snmptoolctx, SNMP_PDU_GETBULK); + else if (strcasecmp(opt_arg, "getnext") == 0) + SET_PDUTYPE(snmptoolctx, SNMP_PDU_GETNEXT); + else if (strcasecmp(opt_arg, "get") == 0) + SET_PDUTYPE(snmptoolctx, SNMP_PDU_GET); + else { + warnx("PDU type '%s' not supported.", opt_arg); + return (-1); + } + + return (2); +} + +static int32_t +snmptool_parse_options(struct snmp_toolinfo *snmptoolctx, int argc, char **argv) +{ + int32_t count, optnum = 0; + int ch; + const char *opts; + + switch (program) { + case BSNMPWALK: + opts = "dhnKA:b:C:I:i:l:o:P:r:s:t:U:v:"; + break; + case BSNMPGET: + opts = "aDdehnKA:b:C:I:i:l:M:N:o:P:p:r:s:t:U:v:"; + break; + case BSNMPSET: + opts = "adehnKA:b:C:I:i:l:o:P:r:s:t:U:v:"; + break; + default: + return (-1); + } + + while ((ch = getopt(argc, argv, opts)) != EOF) { + switch (ch) { + case 'A': + count = parse_authentication(snmptoolctx, optarg); + break; + case 'a': + count = parse_skip_access(snmptoolctx); + break; + case 'b': + count = parse_buflen(optarg); + break; + case 'D': + count = parse_discovery(snmptoolctx); + break; + case 'd': + count = parse_debug(); + break; + case 'e': + count = parse_errors(snmptoolctx); + break; + case 'h': + usage(); + return (-2); + case 'C': + count = parse_context(snmptoolctx, optarg); + break; + case 'I': + count = parse_include(snmptoolctx, optarg); + break; + case 'i': + count = parse_file(snmptoolctx, optarg); + break; + case 'K': + count = parse_local_key(snmptoolctx); + break; + case 'l': + count = parse_local_path(optarg); + break; + case 'M': + count = parse_max_repetitions(snmptoolctx, optarg); + break; + case 'N': + count = parse_non_repeaters(snmptoolctx, optarg); + break; + case 'n': + count = parse_num_oids(snmptoolctx); + break; + case 'o': + count = parse_output(snmptoolctx, optarg); + break; + case 'P': + count = parse_privacy(snmptoolctx, optarg); + break; + case 'p': + count = parse_pdu_type(snmptoolctx, optarg); + break; + case 'r': + count = parse_retry(optarg); + break; + case 's': + count = parse_server(optarg); + break; + case 't': + count = parse_timeout(optarg); + break; + case 'U': + count = parse_user_security(snmptoolctx, optarg); + break; + case 'v': + count = parse_version(optarg); + break; + case '?': + default: + usage(); + return (-1); + } + if (count < 0) + return (-1); + optnum += count; + } + + return (optnum); +} + +/* + * Read user input OID - one of following formats: + * 1) 1.2.1.1.2.1.0 - that is if option numeric was giveni; + * 2) string - in such case append .0 to the asn_oid subs; + * 3) string.1 - no additional proccessing required in such case. + */ +static char * +snmptools_parse_stroid(struct snmp_toolinfo *snmptoolctx, + struct snmp_object *obj, char *argv) +{ + char string[MAXSTR], *str; + int32_t i = 0; + struct asn_oid in_oid; + + str = argv; + + if (*str == '.') + str++; + + while (isalpha(*str) || *str == '_' || (i != 0 && isdigit(*str))) { + str++; + i++; + } + + if (i <= 0 || i >= MAXSTR) + return (NULL); + + memset(&in_oid, 0, sizeof(struct asn_oid)); + if ((str = snmp_parse_suboid((argv + i), &in_oid)) == NULL) { + warnx("Invalid OID - %s", argv); + return (NULL); + } + + strlcpy(string, argv, i + 1); + if (snmp_lookup_oidall(snmptoolctx, obj, string) < 0) { + warnx("No entry for %s in mapping lists", string); + return (NULL); + } + + /* If OID given on command line append it. */ + if (in_oid.len > 0) + asn_append_oid(&(obj->val.var), &in_oid); + else if (*str == '[') { + if ((str = snmp_parse_index(snmptoolctx, str + 1, obj)) == NULL) + return (NULL); + } else if (obj->val.syntax > 0 && GET_PDUTYPE(snmptoolctx) == + SNMP_PDU_GET) { + if (snmp_suboid_append(&(obj->val.var), (asn_subid_t) 0) < 0) + return (NULL); + } + + return (str); +} + +static int32_t +snmptools_parse_oid(struct snmp_toolinfo *snmptoolctx, + struct snmp_object *obj, char *argv) +{ + if (argv == NULL) + return (-1); + + if (ISSET_NUMERIC(snmptoolctx)) { + if (snmp_parse_numoid(argv, &(obj->val.var)) < 0) + return (-1); + } else { + if (snmptools_parse_stroid(snmptoolctx, obj, argv) == NULL && + snmp_parse_numoid(argv, &(obj->val.var)) < 0) + return (-1); + } + + return (1); +} + +static int32_t +snmptool_add_vbind(struct snmp_pdu *pdu, struct snmp_object *obj) +{ + if (obj->error > 0) + return (0); + + asn_append_oid(&(pdu->bindings[pdu->nbindings].var), &(obj->val.var)); + pdu->nbindings++; + + return (pdu->nbindings); +} + +/* ***************************************************************************** + * bsnmpget private functions. + */ +static int32_t +snmpget_verify_vbind(struct snmp_toolinfo *snmptoolctx, struct snmp_pdu *pdu, + struct snmp_object *obj) +{ + if (pdu->version == SNMP_V1 && obj->val.syntax == + SNMP_SYNTAX_COUNTER64) { + warnx("64-bit counters are not supported in SNMPv1 PDU"); + return (-1); + } + + if (ISSET_NUMERIC(snmptoolctx) || pdu->type == SNMP_PDU_GETNEXT || + pdu->type == SNMP_PDU_GETBULK) + return (1); + + if (pdu->type == SNMP_PDU_GET && obj->val.syntax == SNMP_SYNTAX_NULL) { + warnx("Only leaf object values can be added to GET PDU"); + return (-1); + } + + return (1); +} + +/* + * In case of a getbulk PDU, the error_status and error_index fields are used by + * libbsnmp to hold the values of the non-repeaters and max-repetitions fields + * that are present only in the getbulk - so before sending the PDU make sure + * these have correct values as well. + */ +static void +snmpget_fix_getbulk(struct snmp_pdu *pdu, uint32_t max_rep, uint32_t non_rep) +{ + assert(pdu != NULL); + + if (pdu->nbindings < non_rep) + pdu->error_status = pdu->nbindings; + else + pdu->error_status = non_rep; + + if (max_rep > 0) + pdu->error_index = max_rep; + else + pdu->error_index = 1; +} + +static int +snmptool_get(struct snmp_toolinfo *snmptoolctx) +{ + struct snmp_pdu req, resp; + + snmp_pdu_create(&req, GET_PDUTYPE(snmptoolctx)); + + while ((snmp_pdu_add_bindings(snmptoolctx, snmpget_verify_vbind, + snmptool_add_vbind, &req, SNMP_MAX_BINDINGS)) > 0) { + + if (GET_PDUTYPE(snmptoolctx) == SNMP_PDU_GETBULK) + snmpget_fix_getbulk(&req, GET_MAXREP(snmptoolctx), + GET_NONREP(snmptoolctx)); + + if (snmp_dialog(&req, &resp) == -1) { + warnx("Snmp dialog - %s", strerror(errno)); + break; + } + + if (snmp_parse_resp(&resp, &req) >= 0) { + snmp_output_resp(snmptoolctx, &resp); + break; + } + + snmp_output_err_resp(snmptoolctx, &resp); + if (GET_PDUTYPE(snmptoolctx) == SNMP_PDU_GETBULK || + !ISSET_RETRY(snmptoolctx)) + break; + + /* + * Loop through the object list and set object->error to the + * varbinding that caused the error. + */ + if (snmp_object_seterror(snmptoolctx, + &(resp.bindings[resp.error_index - 1]), + resp.error_status) <= 0) + break; + + fprintf(stderr, "Retrying...\n"); + snmp_pdu_free(&resp); + snmp_pdu_create(&req, GET_PDUTYPE(snmptoolctx)); + } + + snmp_pdu_free(&resp); + + return (0); +} + + +/* ***************************************************************************** + * bsnmpwalk private functions. + */ +/* The default tree to walk. */ +static const struct asn_oid snmp_mibII_OID = { + 6 , { 1, 3, 6, 1, 2, 1 } +}; + +static int32_t +snmpwalk_add_default(struct snmp_toolinfo *snmptoolctx __unused, + struct snmp_object *obj, char *string __unused) +{ + asn_append_oid(&(obj->val.var), &snmp_mibII_OID); + return (1); +} + +/* + * Prepare the next GetNext/Get PDU to send. + */ +static void +snmpwalk_nextpdu_create(uint32_t op, struct asn_oid *var, struct snmp_pdu *pdu) +{ + snmp_pdu_create(pdu, op); + asn_append_oid(&(pdu->bindings[0].var), var); + pdu->nbindings = 1; +} + +static int +snmptool_walk(struct snmp_toolinfo *snmptoolctx) +{ + struct snmp_pdu req, resp; + struct asn_oid root; /* Keep the inital oid. */ + int32_t outputs, rc; + + snmp_pdu_create(&req, SNMP_PDU_GETNEXT); + + while ((rc = snmp_pdu_add_bindings(snmptoolctx, NULL, + snmptool_add_vbind, &req, 1)) > 0) { + + /* Remember the root where the walk started from. */ + memset(&root, 0, sizeof(struct asn_oid)); + asn_append_oid(&root, &(req.bindings[0].var)); + + outputs = 0; + while (snmp_dialog(&req, &resp) >= 0) { + if ((snmp_parse_resp(&resp, &req)) < 0) { + snmp_output_err_resp(snmptoolctx, &resp); + snmp_pdu_free(&resp); + outputs = -1; + break; + } + + if (!(asn_is_suboid(&root, &(resp.bindings[0].var)))) { + snmp_pdu_free(&resp); + break; + } + + if (snmp_output_resp(snmptoolctx, &resp)!= 0) { + snmp_pdu_free(&resp); + outputs = -1; + break; + } + outputs++; + snmp_pdu_free(&resp); + + snmpwalk_nextpdu_create(SNMP_PDU_GETNEXT, + &(resp.bindings[0].var), &req); + } + + /* Just in case our root was a leaf. */ + if (outputs == 0) { + snmpwalk_nextpdu_create(SNMP_PDU_GET, &root, &req); + if (snmp_dialog(&req, &resp) == SNMP_CODE_OK) { + if (snmp_parse_resp(&resp,&req) < 0) + snmp_output_err_resp(snmptoolctx, &resp); + else + snmp_output_resp(snmptoolctx, &(resp)); + + snmp_pdu_free(&resp); + } else + warnx("Snmp dialog - %s", strerror(errno)); + } + + if (snmp_object_remove(snmptoolctx, &root) < 0) { + warnx("snmp_object_remove"); + break; + } + + snmp_pdu_create(&req, SNMP_PDU_GETNEXT); + } + + if (rc == 0) + return (0); + else + return (1); +} + +/* ***************************************************************************** + * bsnmpset private functions. + */ + +static int32_t +parse_oid_numeric(struct snmp_value *value, char *val) +{ + char *endptr; + int32_t saved_errno; + asn_subid_t suboid; + + do { + saved_errno = errno; + errno = 0; + suboid = strtoul(val, &endptr, 10); + if (errno != 0) { + warnx("Value %s not supported - %s", val, + strerror(errno)); + errno = saved_errno; + return (-1); + } + errno = saved_errno; + if ((asn_subid_t) suboid > ASN_MAXID) { + warnx("Suboid %u > ASN_MAXID", suboid); + return (-1); + } + if (snmp_suboid_append(&(value->v.oid), suboid) < 0) + return (-1); + val = endptr + 1; + } while (*endptr == '.'); + + if (*endptr != '\0') + warnx("OID value %s not supported", val); + + value->syntax = SNMP_SYNTAX_OID; + return (0); +} + +/* + * Allow OID leaf in both forms: + * 1) 1.3.6.1.2... -> in such case call directly the function reading raw OIDs; + * 2) begemotSnmpdAgentFreeBSD -> lookup the ASN OID corresponding to that. + */ +static int32_t +parse_oid_string(struct snmp_toolinfo *snmptoolctx, + struct snmp_value *value, char *string) +{ + struct snmp_object obj; + + if (isdigit(string[0])) + return (parse_oid_numeric(value, string)); + + memset(&obj, 0, sizeof(struct snmp_object)); + if (snmp_lookup_enumoid(snmptoolctx, &obj, string) < 0) { + warnx("Unknown OID enum string - %s", string); + return (-1); + } + + asn_append_oid(&(value->v.oid), &(obj.val.var)); + return (1); +} + +static int32_t +parse_ip(struct snmp_value * value, char * val) +{ + uint32_t v; + int32_t i; + char *endptr, *str; + + str = val; + for (i = 0; i < 4; i++) { + v = strtoul(str, &endptr, 10); + if (v > 0xff) + return (-1); + if (*endptr != '.' && *endptr != '\0' && i != 3) + break; + str = endptr + 1; + value->v.ipaddress[i] = (uint8_t) v; + } + + value->syntax = SNMP_SYNTAX_IPADDRESS; + return (0); +} + +static int32_t +parse_int(struct snmp_value *value, char *val) +{ + char *endptr; + int32_t v, saved_errno; + + saved_errno = errno; + errno = 0; + + v = strtol(val, &endptr, 10); + + if (errno != 0) { + warnx("Value %s not supported - %s", val, strerror(errno)); + errno = saved_errno; + return (-1); + } + + value->syntax = SNMP_SYNTAX_INTEGER; + value->v.integer = v; + errno = saved_errno; + + return (0); +} + +static int32_t +parse_int_string(struct snmp_object *object, char *val) +{ + int32_t v; + + if (isdigit(val[0])) + return ((parse_int(&(object->val), val))); + + if (object->info == NULL) { + warnx("Unknown enumerated integer type - %s", val); + return (-1); + } + if ((v = enum_number_lookup(object->info->snmp_enum, val)) < 0) + warnx("Unknown enumerated integer type - %s", val); + + object->val.v.integer = v; + return (1); +} + +/* + * Here syntax may be one of SNMP_SYNTAX_COUNTER, SNMP_SYNTAX_GAUGE, + * SNMP_SYNTAX_TIMETICKS. + */ +static int32_t +parse_uint(struct snmp_value *value, char *val) +{ + char *endptr; + uint32_t v = 0; + int32_t saved_errno; + + saved_errno = errno; + errno = 0; + + v = strtoul(val, &endptr, 10); + + if (errno != 0) { + warnx("Value %s not supported - %s", val, strerror(errno)); + errno = saved_errno; + return (-1); + } + + value->v.uint32 = v; + errno = saved_errno; + + return (0); +} + +static int32_t +parse_ticks(struct snmp_value *value, char *val) +{ + if (parse_uint(value, val) < 0) + return (-1); + + value->syntax = SNMP_SYNTAX_TIMETICKS; + return (0); +} + +static int32_t +parse_gauge(struct snmp_value *value, char *val) +{ + if (parse_uint(value, val) < 0) + return (-1); + + value->syntax = SNMP_SYNTAX_GAUGE; + return (0); +} + +static int32_t +parse_counter(struct snmp_value *value, char *val) +{ + if (parse_uint(value, val) < 0) + return (-1); + + value->syntax = SNMP_SYNTAX_COUNTER; + return (0); +} + +static int32_t +parse_uint64(struct snmp_value *value, char *val) +{ + char *endptr; + int32_t saved_errno; + uint64_t v; + + saved_errno = errno; + errno = 0; + + v = strtoull(val, &endptr, 10); + + if (errno != 0) { + warnx("Value %s not supported - %s", val, strerror(errno)); + errno = saved_errno; + return (-1); + } + + value->syntax = SNMP_SYNTAX_COUNTER64; + value->v.counter64 = v; + errno = saved_errno; + + return (0); +} + +static int32_t +parse_syntax_val(struct snmp_value *value, enum snmp_syntax syntax, char *val) +{ + switch (syntax) { + case SNMP_SYNTAX_INTEGER: + return (parse_int(value, val)); + case SNMP_SYNTAX_IPADDRESS: + return (parse_ip(value, val)); + case SNMP_SYNTAX_COUNTER: + return (parse_counter(value, val)); + case SNMP_SYNTAX_GAUGE: + return (parse_gauge(value, val)); + case SNMP_SYNTAX_TIMETICKS: + return (parse_ticks(value, val)); + case SNMP_SYNTAX_COUNTER64: + return (parse_uint64(value, val)); + case SNMP_SYNTAX_OCTETSTRING: + return (snmp_tc2oct(SNMP_STRING, value, val)); + case SNMP_SYNTAX_OID: + return (parse_oid_numeric(value, val)); + default: + /* NOTREACHED */ + break; + } + + return (-1); +} + +/* + * Parse a command line argument of type OID=syntax:value and fill in whatever + * fields can be derived from the input into snmp_value structure. Reads numeric + * OIDs. + */ +static int32_t +parse_pair_numoid_val(char *str, struct snmp_value *snmp_val) +{ + int32_t cnt; + char *ptr; + enum snmp_syntax syntax; + char oid_str[ASN_OIDSTRLEN]; + + ptr = str; + for (cnt = 0; cnt < ASN_OIDSTRLEN; cnt++) + if (ptr[cnt] == '=') + break; + + if (cnt >= ASN_OIDSTRLEN) { + warnx("OID too long - %s", str); + return (-1); + } + strlcpy(oid_str, ptr, (size_t) (cnt + 1)); + + ptr = str + cnt + 1; + for (cnt = 0; cnt < MAX_CMD_SYNTAX_LEN; cnt++) + if(ptr[cnt] == ':') + break; + + if (cnt >= MAX_CMD_SYNTAX_LEN) { + warnx("Unknown syntax in OID - %s", str); + return (-1); + } + + if ((syntax = parse_syntax(ptr)) <= SNMP_SYNTAX_NULL) { + warnx("Unknown syntax in OID - %s", ptr); + return (-1); + } + + ptr = ptr + cnt + 1; + for (cnt = 0; cnt < MAX_OCTSTRING_LEN; cnt++) + if (ptr[cnt] == '\0') + break; + + if (ptr[cnt] != '\0') { + warnx("Value string too long - %s",ptr); + return (-1); + } + + /* + * Here try parsing the OIDs and syntaxes and then check values - have + * to know syntax to check value boundaries. + */ + if (snmp_parse_numoid(oid_str, &(snmp_val->var)) < 0) { + warnx("Error parsing OID %s",oid_str); + return (-1); + } + + if (parse_syntax_val(snmp_val, syntax, ptr) < 0) + return (-1); + + return (1); +} + +/* XXX-BZ aruments should be swapped. */ +static int32_t +parse_syntax_strval(struct snmp_toolinfo *snmptoolctx, char *str, + struct snmp_object *object) +{ + uint32_t len; + enum snmp_syntax syn; + + /* + * Syntax string here not required - still may be present. + */ + + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) { + for (len = 0 ; *(str + len) != ':'; len++) { + if (*(str + len) == '\0') { + warnx("Syntax missing in value - %s", str); + return (-1); + } + } + if ((syn = parse_syntax(str)) <= SNMP_SYNTAX_NULL) { + warnx("Unknown syntax in - %s", str); + return (-1); + } + if (syn != object->val.syntax) { + if (!ISSET_ERRIGNORE(snmptoolctx)) { + warnx("Bad syntax in - %s", str); + return (-1); + } else + object->val.syntax = syn; + } + len++; + } else + len = 0; + + switch (object->val.syntax) { + case SNMP_SYNTAX_INTEGER: + return (parse_int_string(object, str + len)); + case SNMP_SYNTAX_IPADDRESS: + return (parse_ip(&(object->val), str + len)); + case SNMP_SYNTAX_COUNTER: + return (parse_counter(&(object->val), str + len)); + case SNMP_SYNTAX_GAUGE: + return (parse_gauge(&(object->val), str + len)); + case SNMP_SYNTAX_TIMETICKS: + return (parse_ticks(&(object->val), str + len)); + case SNMP_SYNTAX_COUNTER64: + return (parse_uint64(&(object->val), str + len)); + case SNMP_SYNTAX_OCTETSTRING: + return (snmp_tc2oct(object->info->tc, &(object->val), + str + len)); + case SNMP_SYNTAX_OID: + return (parse_oid_string(snmptoolctx, &(object->val), + str + len)); + default: + /* NOTREACHED */ + break; + } + + return (-1); +} + +static int32_t +parse_pair_stroid_val(struct snmp_toolinfo *snmptoolctx, + struct snmp_object *obj, char *argv) +{ + char *ptr; + + if ((ptr = snmptools_parse_stroid(snmptoolctx, obj, argv)) == NULL) + return (-1); + + if (*ptr != '=') { + warnx("Value to set expected after OID"); + return (-1); + } + + if (parse_syntax_strval(snmptoolctx, ptr + 1, obj) < 0) + return (-1); + + return (1); +} + + +static int32_t +snmpset_parse_oid(struct snmp_toolinfo *snmptoolctx, + struct snmp_object *obj, char *argv) +{ + if (argv == NULL) + return (-1); + + if (ISSET_NUMERIC(snmptoolctx)) { + if (parse_pair_numoid_val(argv, &(obj->val)) < 0) + return (-1); + } else { + if (parse_pair_stroid_val(snmptoolctx, obj, argv) < 0) + return (-1); + } + + return (1); +} + +static int32_t +add_ip_syntax(struct snmp_value *dst, struct snmp_value *src) +{ + int8_t i; + + dst->syntax = SNMP_SYNTAX_IPADDRESS; + for (i = 0; i < 4; i++) + dst->v.ipaddress[i] = src->v.ipaddress[i]; + + return (1); +} + +static int32_t +add_octstring_syntax(struct snmp_value *dst, struct snmp_value *src) +{ + if (src->v.octetstring.len > ASN_MAXOCTETSTRING) { + warnx("OctetString len too big - %u",src->v.octetstring.len); + return (-1); + } + + if ((dst->v.octetstring.octets = malloc(src->v.octetstring.len)) == + NULL) { + syslog(LOG_ERR, "malloc() failed - %s", strerror(errno)); + return (-1); + } + + memcpy(dst->v.octetstring.octets, src->v.octetstring.octets, + src->v.octetstring.len); + dst->syntax = SNMP_SYNTAX_OCTETSTRING; + dst->v.octetstring.len = src->v.octetstring.len; + + return(0); +} + +static int32_t +add_oid_syntax(struct snmp_value *dst, struct snmp_value *src) +{ + asn_append_oid(&(dst->v.oid), &(src->v.oid)); + dst->syntax = SNMP_SYNTAX_OID; + return (0); +} + +/* + * Check syntax - if one of SNMP_SYNTAX_NULL, SNMP_SYNTAX_NOSUCHOBJECT, + * SNMP_SYNTAX_NOSUCHINSTANCE, SNMP_SYNTAX_ENDOFMIBVIEW or anything not known - + * return error. + */ +static int32_t +snmpset_add_value(struct snmp_value *dst, struct snmp_value *src) +{ + if (dst == NULL || src == NULL) + return (-1); + + switch (src->syntax) { + case SNMP_SYNTAX_INTEGER: + dst->v.integer = src->v.integer; + dst->syntax = SNMP_SYNTAX_INTEGER; + break; + case SNMP_SYNTAX_TIMETICKS: + dst->v.uint32 = src->v.uint32; + dst->syntax = SNMP_SYNTAX_TIMETICKS; + break; + case SNMP_SYNTAX_GAUGE: + dst->v.uint32 = src->v.uint32; + dst->syntax = SNMP_SYNTAX_GAUGE; + break; + case SNMP_SYNTAX_COUNTER: + dst->v.uint32 = src->v.uint32; + dst->syntax = SNMP_SYNTAX_COUNTER; + break; + case SNMP_SYNTAX_COUNTER64: + dst->v.counter64 = src->v.counter64; + dst->syntax = SNMP_SYNTAX_COUNTER64; + break; + case SNMP_SYNTAX_IPADDRESS: + add_ip_syntax(dst, src); + break; + case SNMP_SYNTAX_OCTETSTRING: + add_octstring_syntax(dst, src); + break; + case SNMP_SYNTAX_OID: + add_oid_syntax(dst, src); + break; + default: + warnx("Unknown syntax %d", src->syntax); + return (-1); + } + + return (0); +} + +static int32_t +snmpset_verify_vbind(struct snmp_toolinfo *snmptoolctx, struct snmp_pdu *pdu, + struct snmp_object *obj) +{ + if (pdu->version == SNMP_V1 && obj->val.syntax == + SNMP_SYNTAX_COUNTER64) { + warnx("64-bit counters are not supported in SNMPv1 PDU"); + return (-1); + } + + if (ISSET_NUMERIC(snmptoolctx) || ISSET_ERRIGNORE(snmptoolctx)) + return (1); + + if (obj->info->access < SNMP_ACCESS_SET) { + warnx("Object %s not accessible for set - try 'bsnmpset -a'", + obj->info->string); + return (-1); + } + + return (1); +} + +static int32_t +snmpset_add_vbind(struct snmp_pdu *pdu, struct snmp_object *obj) +{ + if (pdu->nbindings > SNMP_MAX_BINDINGS) { + warnx("Too many OIDs for one PDU"); + return (-1); + } + + if (obj->error > 0) + return (0); + + if (snmpset_add_value(&(pdu->bindings[pdu->nbindings]), &(obj->val)) + < 0) + return (-1); + + asn_append_oid(&(pdu->bindings[pdu->nbindings].var), &(obj->val.var)); + pdu->nbindings++; + + return (pdu->nbindings); +} + +static int +snmptool_set(struct snmp_toolinfo *snmptoolctx) +{ + struct snmp_pdu req, resp; + + snmp_pdu_create(&req, SNMP_PDU_SET); + + while ((snmp_pdu_add_bindings(snmptoolctx, snmpset_verify_vbind, + snmpset_add_vbind, &req, SNMP_MAX_BINDINGS)) > 0) { + if (snmp_dialog(&req, &resp)) { + warnx("Snmp dialog - %s", strerror(errno)); + break; + } + + if (snmp_pdu_check(&req, &resp) > 0) { + if (GET_OUTPUT(snmptoolctx) != OUTPUT_QUIET) + snmp_output_resp(snmptoolctx, &resp); + break; + } + + snmp_output_err_resp(snmptoolctx, &resp); + if (!ISSET_RETRY(snmptoolctx)) + break; + + if (snmp_object_seterror(snmptoolctx, + &(resp.bindings[resp.error_index - 1]), + resp.error_status) <= 0) + break; + + fprintf(stderr, "Retrying...\n"); + snmp_pdu_free(&req); + snmp_pdu_free(&resp); + snmp_pdu_create(&req, SNMP_PDU_SET); + } + + snmp_pdu_free(&resp); + + return (0); +} + +/* ***************************************************************************** + * main + */ +/* + * According to command line options prepare SNMP Get | GetNext | GetBulk PDU. + * Wait for a responce and print it. + */ +/* + * Do a 'snmp walk' - according to command line options request for values + * lexicographically subsequent and subrooted at a common node. Send a GetNext + * PDU requesting the value for each next variable and print the responce. Stop + * when a Responce PDU is received that contains the value of a variable not + * subrooted at the variable the walk started. + */ +int +main(int argc, char ** argv) +{ + struct snmp_toolinfo snmptoolctx; + int32_t oid_cnt, last_oid, opt_num; + int rc = 0; + + /* Make sure program_name is set and valid. */ + if (*argv == NULL) + program_name = "snmptool"; + else { + program_name = strrchr(*argv, '/'); + if (program_name != NULL) + program_name++; + else + program_name = *argv; + } + + if (program_name == NULL) { + fprintf(stderr, "Error: No program name?\n"); + exit (1); + } else if (strcmp(program_name, "bsnmpget") == 0) + program = BSNMPGET; + else if (strcmp(program_name, "bsnmpwalk") == 0) + program = BSNMPWALK; + else if (strcmp(program_name, "bsnmpset") == 0) + program = BSNMPSET; + else { + fprintf(stderr, "Unknown snmp tool name '%s'.\n", program_name); + exit (1); + } + + /* Initialize. */ + if (snmptool_init(&snmptoolctx) < 0) + exit (1); + + if ((opt_num = snmptool_parse_options(&snmptoolctx, argc, argv)) < 0) { + snmp_tool_freeall(&snmptoolctx); + /* On -h (help) exit without error. */ + if (opt_num == -2) + exit(0); + else + exit(1); + } + + oid_cnt = argc - opt_num - 1; + if (oid_cnt == 0) { + switch (program) { + case BSNMPGET: + if (!ISSET_EDISCOVER(&snmptoolctx) && + !ISSET_LOCALKEY(&snmptoolctx)) { + fprintf(stderr, "No OID given.\n"); + usage(); + snmp_tool_freeall(&snmptoolctx); + exit(1); + } + break; + + case BSNMPWALK: + if (snmp_object_add(&snmptoolctx, snmpwalk_add_default, + NULL) < 0) { + fprintf(stderr, + "Error setting default subtree.\n"); + snmp_tool_freeall(&snmptoolctx); + exit(1); + } + break; + + case BSNMPSET: + fprintf(stderr, "No OID given.\n"); + usage(); + snmp_tool_freeall(&snmptoolctx); + exit(1); + } + } + + if (snmp_import_all(&snmptoolctx) < 0) { + snmp_tool_freeall(&snmptoolctx); + exit(1); + } + + /* A simple sanity check - can not send GETBULK when using SNMPv1. */ + if (program == BSNMPGET && snmp_client.version == SNMP_V1 && + GET_PDUTYPE(&snmptoolctx) == SNMP_PDU_GETBULK) { + fprintf(stderr, "Cannot send GETBULK PDU with SNMPv1.\n"); + snmp_tool_freeall(&snmptoolctx); + exit(1); + } + + for (last_oid = argc - 1; oid_cnt > 0; last_oid--, oid_cnt--) { + if ((snmp_object_add(&snmptoolctx, (program == BSNMPSET) ? + snmpset_parse_oid : snmptools_parse_oid, + argv[last_oid])) < 0) { + fprintf(stderr, "Error parsing OID string '%s'.\n", + argv[last_oid]); + snmp_tool_freeall(&snmptoolctx); + exit(1); + } + } + + if (snmp_open(NULL, NULL, NULL, NULL)) { + warnx("Failed to open snmp session: %s.", strerror(errno)); + snmp_tool_freeall(&snmptoolctx); + exit(1); + } + + if (snmp_client.version == SNMP_V3 && snmp_client.engine.engine_len == 0) + SET_EDISCOVER(&snmptoolctx); + + if (ISSET_EDISCOVER(&snmptoolctx) && + snmp_discover_engine(snmptoolctx.passwd) < 0) { + warnx("Unknown SNMP Engine ID: %s.", strerror(errno)); + rc = 1; + goto cleanup; + } + + if (GET_OUTPUT(&snmptoolctx) == OUTPUT_VERBOSE || + ISSET_EDISCOVER(&snmptoolctx)) + snmp_output_engine(); + + if (snmp_client.version == SNMP_V3 && ISSET_LOCALKEY(&snmptoolctx) && + !ISSET_EDISCOVER(&snmptoolctx)) { + if (snmp_passwd_to_keys(&snmp_client.user, + snmptoolctx.passwd) != SNMP_CODE_OK || + snmp_get_local_keys(&snmp_client.user, + snmp_client.engine.engine_id, + snmp_client.engine.engine_len) != SNMP_CODE_OK) { + warnx("Failed to get keys: %s.", strerror(errno)); + rc = 1; + goto cleanup; + } + } + + if (GET_OUTPUT(&snmptoolctx) == OUTPUT_VERBOSE || + ISSET_EDISCOVER(&snmptoolctx)) + snmp_output_keys(); + + if (ISSET_EDISCOVER(&snmptoolctx) && snmptoolctx.objects == 0) + goto cleanup; + + switch (program) { + case BSNMPGET: + rc = snmptool_get(&snmptoolctx); + break; + case BSNMPWALK: + rc = snmptool_walk(&snmptoolctx); + break; + case BSNMPSET: + rc = snmptool_set(&snmptoolctx); + break; + } + + +cleanup: + snmp_tool_freeall(&snmptoolctx); + snmp_close(); + + exit(rc); +} diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/Makefile b/usr.sbin/bsnmpd/tools/libbsnmptools/Makefile new file mode 100644 index 000000000000..f2b71b6570d5 --- /dev/null +++ b/usr.sbin/bsnmpd/tools/libbsnmptools/Makefile @@ -0,0 +1,14 @@ +# +# $FreeBSD$ +# + +.PATH: ${.CURDIR} + +LIB= bsnmptools +#INTERNALLIB= +SRCS= bsnmpimport.c bsnmpmap.c bsnmptools.c bsnmptc.c +CFLAGS+= -g -Wall -Werror + +SHLIB_MAJOR= 0 + +.include diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpimport.c b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpimport.c new file mode 100644 index 000000000000..b92532fa89b9 --- /dev/null +++ b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpimport.c @@ -0,0 +1,971 @@ +/*- + * Copyright (c) 2006 The FreeBSD Project + * All rights reserved. + * + * Author: Shteryana Shopova + * + * Redistribution of this software and documentation and use in source and + * binary forms, with or without modification, are permitted provided that + * the following conditions are met: + * + * 1. Redistributions of source code or documentation must retain the above + * copyright notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * Read file containing table description - reuse magic from gensnmptree.c. + * Hopefully one day most of the code here will be part of libbsnmp and + * this duplication won't be necessary. + * + * Syntax is: + * --------- + * file := top | top file + * + * top := tree | typedef | include + * + * tree := head elements ')' + * + * entry := head ':' index STRING elements ')' + * + * leaf := head type STRING ACCESS ')' + * + * column := head type ACCESS ')' + * + * type := BASETYPE | BASETYPE '|' subtype | enum | bits + * + * subtype := STRING + * + * enum := ENUM '(' value ')' + * + * bits := BITS '(' value ')' + * + * value := INT STRING | INT STRING value + * + * head := '(' INT STRING + * + * elements := EMPTY | elements element + * + * element := tree | leaf | column + * + * index := type | index type + * + * typedef := 'typedef' STRING type + * + * include := 'include' filespec + * + * filespec := '"' STRING '"' | '<' STRING '>' + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include /* SNMP_INDEXES_MAX */ +#include "bsnmptc.h" +#include "bsnmptools.h" + +enum snmp_tbl_entry { + ENTRY_NONE = 0, + ENTRY_INDEX, + ENTRY_DATA +}; + +enum { + FL_GET = 0x01, + FL_SET = 0x02, +}; + +/************************************************************ + * + * Allocate memory and panic just in the case... + */ +static void * +xalloc(size_t size) +{ + void *ptr; + + if ((ptr = malloc(size)) == NULL) + err(1, "allocing %zu bytes", size); + + return (ptr); +} + +static char * +savestr(const char *s) +{ + if (s == NULL) + return (NULL); + + return (strcpy(xalloc(strlen(s) + 1), s)); +} + +/************************************************************ + * + * Input stack + */ +struct input { + FILE *fp; + uint32_t lno; + char *fname; + char *path; + LIST_ENTRY(input) link; +}; + +LIST_HEAD(, input) inputs = LIST_HEAD_INITIALIZER(inputs); +struct input *input = NULL; +int32_t pbchar = -1; + +#define MAX_PATHS 100 + +static const char *paths[MAX_PATHS + 1] = { + "/usr/share/snmp/defs", + "/usr/local/share/snmp/defs", + NULL +}; + +static void +input_new(FILE *fp, const char *path, const char *fname) +{ + struct input *ip; + + ip = xalloc(sizeof(*ip)); + ip->fp = fp; + ip->lno = 1; + ip->fname = savestr(fname); + ip->path = savestr(path); + LIST_INSERT_HEAD(&inputs, ip, link); + + input = ip; +} + +static void +input_close(void) +{ + if (input == NULL) + return; + + fclose(input->fp); + free(input->fname); + free(input->path); + LIST_REMOVE(input, link); + free(input); + + input = LIST_FIRST(&inputs); +} + +static FILE * +tryopen(const char *path, const char *fname) +{ + char *fn; + FILE *fp; + + if (path == NULL) + fn = savestr(fname); + else { + fn = xalloc(strlen(path) + strlen(fname) + 2); + sprintf(fn, "%s/%s", path, fname); + } + fp = fopen(fn, "r"); + free(fn); + return (fp); +} + +static int32_t +input_fopen(const char *fname) +{ + FILE *fp; + u_int p; + + if (fname[0] == '/' || fname[0] == '.' || fname[0] == '~') { + if ((fp = tryopen(NULL, fname)) != NULL) { + input_new(fp, NULL, fname); + return (0); + } + + } else { + + for (p = 0; paths[p] != NULL; p++) + if ((fp = tryopen(paths[p], fname)) != NULL) { + input_new(fp, paths[p], fname); + return (0); + } + } + + warnx("cannot open '%s'", fname); + return (-1); +} + +static int32_t +tgetc(void) +{ + int c; + + if (pbchar != -1) { + c = pbchar; + pbchar = -1; + return (c); + } + + for (;;) { + if (input == NULL) + return (EOF); + + if ((c = getc(input->fp)) != EOF) + return (c); + + input_close(); + } +} + +static int32_t +tungetc(int c) +{ + + if (pbchar != -1) + return (-1); + + pbchar = c; + return (1); +} + +/************************************************************ + * + * Parsing input + */ +enum tok { + TOK_EOF = 0200, /* end-of-file seen */ + TOK_NUM, /* number */ + TOK_STR, /* string */ + TOK_ACCESS, /* access operator */ + TOK_TYPE, /* type operator */ + TOK_ENUM, /* enum token (kind of a type) */ + TOK_TYPEDEF, /* typedef directive */ + TOK_DEFTYPE, /* defined type */ + TOK_INCLUDE, /* include directive */ + TOK_FILENAME, /* filename ("foo.bar" or ) */ + TOK_BITS, /* bits token (kind of a type) */ + TOK_ERR /* unexpected char - exit */ +}; + +static const struct { + const char *str; + enum tok tok; + uint32_t val; +} keywords[] = { + { "GET", TOK_ACCESS, FL_GET }, + { "SET", TOK_ACCESS, FL_SET }, + { "NULL", TOK_TYPE, SNMP_SYNTAX_NULL }, + { "INTEGER", TOK_TYPE, SNMP_SYNTAX_INTEGER }, + { "INTEGER32", TOK_TYPE, SNMP_SYNTAX_INTEGER }, + { "UNSIGNED32", TOK_TYPE, SNMP_SYNTAX_GAUGE }, + { "OCTETSTRING", TOK_TYPE, SNMP_SYNTAX_OCTETSTRING }, + { "IPADDRESS", TOK_TYPE, SNMP_SYNTAX_IPADDRESS }, + { "OID", TOK_TYPE, SNMP_SYNTAX_OID }, + { "TIMETICKS", TOK_TYPE, SNMP_SYNTAX_TIMETICKS }, + { "COUNTER", TOK_TYPE, SNMP_SYNTAX_COUNTER }, + { "GAUGE", TOK_TYPE, SNMP_SYNTAX_GAUGE }, + { "COUNTER64", TOK_TYPE, SNMP_SYNTAX_COUNTER64 }, + { "ENUM", TOK_ENUM, SNMP_SYNTAX_INTEGER }, + { "BITS", TOK_BITS, SNMP_SYNTAX_OCTETSTRING }, + { "typedef", TOK_TYPEDEF, 0 }, + { "include", TOK_INCLUDE, 0 }, + { NULL, 0, 0 } +}; + +struct { + /* Current OID type, regarding table membership. */ + enum snmp_tbl_entry tbl_type; + /* A pointer to a structure in table list to add to its members. */ + struct snmp_index_entry *table_idx; +} table_data; + +struct asn_oid current_oid; +char nexttok[MAXSTR]; +u_long val; /* integer values */ +int32_t all_cond; /* all conditions are true */ +int32_t saved_token = -1; + +/* Prepare the global data before parsing a new file. */ +static void +snmp_import_init(struct asn_oid *append) +{ + memset(&table_data, 0, sizeof(table_data)); + memset(¤t_oid, 0, sizeof(struct asn_oid)); + memset(nexttok, 0, MAXSTR); + + if (append != NULL) + asn_append_oid(¤t_oid, append); + + all_cond = 0; + val = 0; + saved_token = -1; +} + +static int32_t +gettoken(struct snmp_toolinfo *snmptoolctx) +{ + int c; + struct enum_type *t; + + if (saved_token != -1) { + c = saved_token; + saved_token = -1; + return (c); + } + + again: + /* + * Skip any whitespace before the next token. + */ + while ((c = tgetc()) != EOF) { + if (c == '\n') + input->lno++; + if (!isspace(c)) + break; + } + if (c == EOF) + return (TOK_EOF); + + if (!isascii(c)) { + warnx("unexpected character %#2x", (u_int) c); + return (TOK_ERR); + } + + /* + * Skip comments. + */ + if (c == '#') { + while ((c = tgetc()) != EOF) { + if (c == '\n') { + input->lno++; + goto again; + } + } + warnx("unexpected EOF in comment"); + return (TOK_ERR); + } + + /* + * Single character tokens. + */ + if (strchr("():|", c) != NULL) + return (c); + + if (c == '"' || c == '<') { + int32_t end = c; + size_t n = 0; + + val = 1; + if (c == '<') { + val = 0; + end = '>'; + } + + while ((c = tgetc()) != EOF) { + if (c == end) + break; + if (n == sizeof(nexttok) - 1) { + nexttok[n++] = '\0'; + warnx("filename too long '%s...'", nexttok); + return (TOK_ERR); + } + nexttok[n++] = c; + } + nexttok[n++] = '\0'; + return (TOK_FILENAME); + } + + /* + * Sort out numbers. + */ + if (isdigit(c)) { + size_t n = 0; + nexttok[n++] = c; + while ((c = tgetc()) != EOF) { + if (!isdigit(c)) { + if (tungetc(c) < 0) + return (TOK_ERR); + break; + } + if (n == sizeof(nexttok) - 1) { + nexttok[n++] = '\0'; + warnx("number too long '%s...'", nexttok); + return (TOK_ERR); + } + nexttok[n++] = c; + } + nexttok[n++] = '\0'; + sscanf(nexttok, "%lu", &val); + return (TOK_NUM); + } + + /* + * So that has to be a string. + */ + if (isalpha(c) || c == '_' || c == '-') { + size_t n = 0; + nexttok[n++] = c; + while ((c = tgetc()) != EOF) { + if (!isalnum(c) && c != '_' && c != '-') { + if (tungetc (c) < 0) + return (TOK_ERR); + break; + } + if (n == sizeof(nexttok) - 1) { + nexttok[n++] = '\0'; + warnx("string too long '%s...'", nexttok); + return (TOK_ERR); + } + nexttok[n++] = c; + } + nexttok[n++] = '\0'; + + /* + * Keywords. + */ + for (c = 0; keywords[c].str != NULL; c++) + if (strcmp(keywords[c].str, nexttok) == 0) { + val = keywords[c].val; + return (keywords[c].tok); + } + + if ((t = snmp_enumtc_lookup(snmptoolctx, nexttok)) != NULL) { + val = t->syntax; + return (TOK_DEFTYPE); + } + + return (TOK_STR); + } + + if (isprint(c)) + warnx("%u: unexpected character '%c'", input->lno, c); + else + warnx("%u: unexpected character 0x%02x", input->lno, (u_int) c); + + return (TOK_ERR); +} + +/* + * Update table information. + */ +static struct snmp_index_entry * +snmp_import_update_table(enum snmp_tbl_entry te, struct snmp_index_entry *tbl) +{ + switch (te) { + case ENTRY_NONE: + if (table_data.tbl_type == ENTRY_NONE) + return (NULL); + if (table_data.tbl_type == ENTRY_INDEX) + table_data.table_idx = NULL; + table_data.tbl_type--; + return (NULL); + + case ENTRY_INDEX: + if (tbl == NULL) + warnx("No table_index to add!!!"); + table_data.table_idx = tbl; + table_data.tbl_type = ENTRY_INDEX; + return (tbl); + + case ENTRY_DATA: + if (table_data.tbl_type == ENTRY_INDEX) { + table_data.tbl_type = ENTRY_DATA; + return (table_data.table_idx); + } + return (NULL); + + default: + /* NOTREACHED */ + warnx("Unknown table entry type!!!"); + break; + } + + return (NULL); +} + +static int32_t +parse_enum(struct snmp_toolinfo *snmptoolctx, enum tok *tok, + struct enum_pairs *enums) +{ + while ((*tok = gettoken(snmptoolctx)) == TOK_STR) { + if (enum_pair_insert(enums, val, nexttok) < 0) + return (-1); + if ((*tok = gettoken(snmptoolctx)) != TOK_NUM) + break; + } + + if (*tok != ')') { + warnx("')' at end of enums"); + return (-1); + } + + return (1); +} + +static int32_t +parse_subtype(struct snmp_toolinfo *snmptoolctx, enum tok *tok, + enum snmp_tc *tc) +{ + if ((*tok = gettoken(snmptoolctx)) != TOK_STR) { + warnx("subtype expected after '|'"); + return (-1); + } + + *tc = snmp_get_tc(nexttok); + *tok = gettoken(snmptoolctx); + + return (1); +} + +static int32_t +parse_type(struct snmp_toolinfo *snmptoolctx, enum tok *tok, + enum snmp_tc *tc, struct enum_pairs **snmp_enum) +{ + int32_t syntax, mem; + + syntax = val; + *tc = 0; + + if (*tok == TOK_ENUM || *tok == TOK_BITS) { + if (*snmp_enum == NULL) { + if ((*snmp_enum = enum_pairs_init()) == NULL) + return (-1); + mem = 1; + *tc = SNMP_TC_OWN; + } else + mem = 0; + + if (gettoken(snmptoolctx) != '(') { + warnx("'(' expected after ENUM/BITS"); + return (-1); + } + + if ((*tok = gettoken(snmptoolctx)) != TOK_NUM) { + warnx("need value for ENUM//BITS"); + if (mem == 1) { + free(*snmp_enum); + *snmp_enum = NULL; + } + return (-1); + } + + if (parse_enum(snmptoolctx, tok, *snmp_enum) < 0) { + enum_pairs_free(*snmp_enum); + *snmp_enum = NULL; + return (-1); + } + + *tok = gettoken(snmptoolctx); + + } else if (*tok == TOK_DEFTYPE) { + struct enum_type *t; + + *tc = 0; + t = snmp_enumtc_lookup(snmptoolctx, nexttok); + if (t != NULL) + *snmp_enum = t->snmp_enum; + + *tok = gettoken(snmptoolctx); + + } else { + if ((*tok = gettoken(snmptoolctx)) == '|') { + if (parse_subtype(snmptoolctx, tok, tc) < 0) + return (-1); + } + } + + return (syntax); +} + +static int32_t +snmp_import_head(struct snmp_toolinfo *snmptoolctx) +{ + enum tok tok; + + if ((tok = gettoken(snmptoolctx)) == '(') + tok = gettoken(snmptoolctx); + + if (tok != TOK_NUM || val > ASN_MAXID ) { + warnx("Suboid expected - line %d", input->lno); + return (-1); + } + + if (gettoken(snmptoolctx) != TOK_STR) { + warnx("Node name expected at line %d", input->lno); + return (-1); + } + + return (1); +} + +static int32_t +snmp_import_table(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *obj) +{ + int32_t i; + enum snmp_tc tc; + enum tok tok; + struct snmp_index_entry *entry; + + if ((entry = malloc(sizeof(struct snmp_index_entry))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (-1); + } + + memset(entry, 0, sizeof(struct snmp_index_entry)); + STAILQ_INIT(&(entry->index_list)); + + for (i = 0, tok = gettoken(snmptoolctx); i < SNMP_INDEXES_MAX; i++) { + int32_t syntax; + struct enum_pairs *enums = NULL; + + if (tok != TOK_TYPE && tok != TOK_DEFTYPE && tok != TOK_ENUM && + tok != TOK_BITS) + break; + + if ((syntax = parse_type(snmptoolctx, &tok, &tc, &enums)) < 0) { + enum_pairs_free(enums); + snmp_index_listfree(&(entry->index_list)); + free(entry); + return (-1); + } + + if (snmp_syntax_insert(&(entry->index_list), enums, syntax, + tc) < 0) { + snmp_index_listfree(&(entry->index_list)); + enum_pairs_free(enums); + free(entry); + return (-1); + } + } + + if (i == 0 || i > SNMP_INDEXES_MAX) { + warnx("Bad number of indexes at line %d", input->lno); + snmp_index_listfree(&(entry->index_list)); + free(entry); + return (-1); + } + + if (tok != TOK_STR) { + warnx("String expected after indexes at line %d", input->lno); + snmp_index_listfree(&(entry->index_list)); + free(entry); + return (-1); + } + + entry->string = obj->string; + entry->strlen = obj->strlen; + asn_append_oid(&(entry->var), &(obj->var)); + + if ((i = snmp_table_insert(snmptoolctx, entry)) < 0) { + snmp_index_listfree(&(entry->index_list)); + free(entry); + return (-1); + } else if (i == 0) { + /* Same entry already present in lists. */ + free(entry->string); + free(entry); + } + + (void) snmp_import_update_table(ENTRY_INDEX, entry); + + return (1); +} + +/* + * Read everything after the syntax type that is certainly a leaf OID info. + */ +static int32_t +snmp_import_leaf(struct snmp_toolinfo *snmptoolctx, enum tok *tok, + struct snmp_oid2str *oid2str) +{ + int32_t i, syntax; + + if ((syntax = parse_type(snmptoolctx, tok, &(oid2str->tc), &(oid2str->snmp_enum))) + < 0) + return(-1); + + oid2str->syntax = syntax; + /* + * That is the name of the function, corresponding to the entry. + * It is used by bsnmpd, but is not interesting for us. + */ + if (*tok == TOK_STR) + *tok = gettoken(snmptoolctx); + + for (i = 0; i < SNMP_ACCESS_GETSET && *tok == TOK_ACCESS; i++) { + oid2str->access |= (uint32_t) val; + *tok = gettoken(snmptoolctx); + } + + if (*tok != ')') { + warnx("')' expected at end of line %d", input->lno); + return (-1); + } + + oid2str->table_idx = snmp_import_update_table(ENTRY_DATA, NULL); + + if ((i = snmp_leaf_insert(snmptoolctx, oid2str)) < 0) { + warnx("Error adding leaf %s to list", oid2str->string); + return (-1); + } + + /* + * Same entry is already present in the mapping lists and + * the new one was not inserted. + */ + if (i == 0) { + free(oid2str->string); + free(oid2str); + } + + (void) snmp_import_update_table(ENTRY_NONE, NULL); + + return (1); +} + +static int32_t +snmp_import_object(struct snmp_toolinfo *snmptoolctx) +{ + char *string; + int i; + enum tok tok; + struct snmp_oid2str *oid2str; + + if (snmp_import_head(snmptoolctx) < 0) + return (-1); + + if ((oid2str = malloc(sizeof(struct snmp_oid2str))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (-1); + } + + if ((string = malloc(strlen(nexttok) + 1)) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + free(oid2str); + return (-1); + } + + memset(oid2str, 0, sizeof(struct snmp_oid2str)); + strlcpy(string, nexttok, strlen(nexttok) + 1); + oid2str->string = string; + oid2str->strlen = strlen(nexttok); + + asn_append_oid(&(oid2str->var), &(current_oid)); + if (snmp_suboid_append(&(oid2str->var), (asn_subid_t) val) < 0) + goto error; + + /* + * Prepared the entry - now figure out where to insert it. + * After the object we have following options: + * 1) new line, blank, ) - then it is an enum oid -> snmp_enumlist; + * 2) new line , ( - nonleaf oid -> snmp_nodelist; + * 2) ':' - table entry - a variable length SYNTAX_TYPE (one or more) + * may follow and second string must end line -> snmp_tablelist; + * 3) OID , string ) - this is a trap entry or a leaf -> snmp_oidlist; + * 4) SYNTAX_TYPE, string (not always), get/set modifier - always last + * and )- this is definitely a leaf. + */ + + switch (tok = gettoken(snmptoolctx)) { + case ')': + if ((i = snmp_enum_insert(snmptoolctx, oid2str)) < 0) + goto error; + if (i == 0) { + free(oid2str->string); + free(oid2str); + } + return (1); + + case '(': + if (snmp_suboid_append(¤t_oid, (asn_subid_t) val) < 0) + goto error; + + /* + * Ignore the error for nodes since the .def files currently + * contain different strings for 1.3.6.1.2.1 - mibII. Only make + * sure the memory is freed and don't complain. + */ + if ((i = snmp_node_insert(snmptoolctx, oid2str)) <= 0) { + free(string); + free(oid2str); + } + return (snmp_import_object(snmptoolctx)); + + case ':': + if (snmp_suboid_append(¤t_oid, (asn_subid_t) val) < 0) + goto error; + if (snmp_import_table(snmptoolctx, oid2str) < 0) + goto error; + /* + * A different table entry type was malloced and the data is + * contained there. + */ + free(oid2str); + return (1); + + case TOK_TYPE: + /* FALLTHROUGH */ + case TOK_DEFTYPE: + /* FALLTHROUGH */ + case TOK_ENUM: + /* FALLTHROUGH */ + case TOK_BITS: + if (snmp_import_leaf(snmptoolctx, &tok, oid2str) < 0) + goto error; + return (1); + + default: + warnx("Unexpected token at line %d - %s", input->lno, + input->fname); + break; + } + +error: + snmp_mapping_entryfree(oid2str); + + return (-1); +} + +static int32_t +snmp_import_tree(struct snmp_toolinfo *snmptoolctx, enum tok *tok) +{ + while (*tok != TOK_EOF) { + switch (*tok) { + case TOK_ERR: + return (-1); + case '(': + if (snmp_import_object(snmptoolctx) < 0) + return (-1); + break; + case ')': + if (snmp_suboid_pop(¤t_oid) < 0) + return (-1); + (void) snmp_import_update_table(ENTRY_NONE, NULL); + break; + default: + /* Anything else here would be illegal. */ + return (-1); + } + *tok = gettoken(snmptoolctx); + } + + return (0); +} + +static int32_t +snmp_import_top(struct snmp_toolinfo *snmptoolctx, enum tok *tok) +{ + enum snmp_tc tc; + struct enum_type *t; + + if (*tok == '(') + return (snmp_import_tree(snmptoolctx, tok)); + + if (*tok == TOK_TYPEDEF) { + if ((*tok = gettoken(snmptoolctx)) != TOK_STR) { + warnx("type name expected after typedef - %s", + input->fname); + return (-1); + } + + t = snmp_enumtc_init(nexttok); + + *tok = gettoken(snmptoolctx); + t->is_enum = (*tok == TOK_ENUM); + t->is_bits = (*tok == TOK_BITS); + t->syntax = parse_type(snmptoolctx, tok, &tc, &(t->snmp_enum)); + snmp_enumtc_insert(snmptoolctx, t); + + return (1); + } + + if (*tok == TOK_INCLUDE) { + int i; + + *tok = gettoken(snmptoolctx); + if (*tok != TOK_FILENAME) { + warnx("filename expected in include directive - %s", + nexttok); + return (-1); + } + + if (( i = add_filename(snmptoolctx, nexttok, NULL, 1)) == 0) { + *tok = gettoken(snmptoolctx); + return (1); + } + + if (i == -1) + return (-1); + + input_fopen(nexttok); + *tok = gettoken(snmptoolctx); + return (1); + } + + warnx("'(' or 'typedef' expected - %s", nexttok); + return (-1); +} + +static int32_t +snmp_import(struct snmp_toolinfo *snmptoolctx) +{ + int i; + enum tok tok; + + tok = gettoken(snmptoolctx); + + do + i = snmp_import_top(snmptoolctx, &tok); + while (i > 0); + + return (i); +} + +/* + * Read a .def file and import oid<->string mapping. + * Mappings are inserted into a global structure containing list for each OID + * syntax type. + */ +int32_t +snmp_import_file(struct snmp_toolinfo *snmptoolctx, struct fname *file) +{ + int idx; + + snmp_import_init(&(file->cut)); + input_fopen(file->name); + if ((idx = snmp_import(snmptoolctx)) < 0) + warnx("Failed to read mappings from file %s", file->name); + + input_close(); + + return (idx); +} diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpmap.c b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpmap.c new file mode 100644 index 000000000000..a6d14a27c89c --- /dev/null +++ b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmpmap.c @@ -0,0 +1,1018 @@ +/*- + * Copyright (c) 2006 The FreeBSD Project + * All rights reserved. + * + * Author: Shteryana Shopova + * + * Redistribution of this software and documentation and use in source and + * binary forms, with or without modification, are permitted provided that + * the following conditions are met: + * + * 1. Redistributions of source code or documentation must retain the above + * copyright notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include "bsnmptc.h" +#include "bsnmptools.h" + +extern int _bsnmptools_debug; +#define DEBUG if (_bsnmptools_debug) fprintf + +/* Allocate memory and initialize list. */ +struct snmp_mappings * +snmp_mapping_init(void) +{ + struct snmp_mappings *m; + + if ((m = malloc(sizeof(struct snmp_mappings))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (NULL); + } + + memset(m, 0, sizeof(struct snmp_mappings)); + return (m); +} + +#define snmp_nodelist mappings->nodelist +#define snmp_intlist mappings->intlist +#define snmp_octlist mappings->octlist +#define snmp_oidlist mappings->oidlist +#define snmp_iplist mappings->iplist +#define snmp_ticklist mappings->ticklist +#define snmp_cntlist mappings->cntlist +#define snmp_gaugelist mappings->gaugelist +#define snmp_cnt64list mappings->cnt64list +#define snmp_enumlist mappings->enumlist +#define snmp_tablelist mappings->tablelist +#define snmp_tclist mappings->tclist + +void +enum_pairs_free(struct enum_pairs *headp) +{ + struct enum_pair *e; + + if (headp == NULL) + return; + + while ((e = STAILQ_FIRST(headp)) != NULL) { + STAILQ_REMOVE_HEAD(headp, link); + + if (e->enum_str) + free(e->enum_str); + free(e); + } + + free(headp); +} + +void +snmp_mapping_entryfree(struct snmp_oid2str *entry) +{ + if (entry->string) + free(entry->string); + + if (entry->tc == SNMP_TC_OWN) + enum_pairs_free(entry->snmp_enum); + + free(entry); +} + +static void +snmp_mapping_listfree(struct snmp_mapping *headp) +{ + struct snmp_oid2str *p; + + while ((p = SLIST_FIRST(headp)) != NULL) { + SLIST_REMOVE_HEAD(headp, link); + + if (p->string) + free(p->string); + + if (p->tc == SNMP_TC_OWN) + enum_pairs_free(p->snmp_enum); + free(p); + } + + SLIST_INIT(headp); +} + +void +snmp_index_listfree(struct snmp_idxlist *headp) +{ + struct index *i; + + while ((i = STAILQ_FIRST(headp)) != NULL) { + STAILQ_REMOVE_HEAD(headp, link); + if (i->tc == SNMP_TC_OWN) + enum_pairs_free(i->snmp_enum); + free(i); + } + + STAILQ_INIT(headp); +} + +static void +snmp_mapping_table_listfree(struct snmp_table_index *headp) +{ + struct snmp_index_entry *t; + + while ((t = SLIST_FIRST(headp)) != NULL) { + SLIST_REMOVE_HEAD(headp, link); + + if (t->string) + free(t->string); + + snmp_index_listfree(&(t->index_list)); + free(t); + } +} + +static void +snmp_enumtc_listfree(struct snmp_enum_tc *headp) +{ + struct enum_type *t; + + while ((t = SLIST_FIRST(headp)) != NULL) { + SLIST_REMOVE_HEAD(headp, link); + + if (t->name) + free(t->name); + enum_pairs_free(t->snmp_enum); + free(t); + } +} + +int +snmp_mapping_free(struct snmp_toolinfo *snmptoolctx) +{ + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL) + return (-1); + + snmp_mapping_listfree(&snmptoolctx->snmp_nodelist); + snmp_mapping_listfree(&snmptoolctx->snmp_intlist); + snmp_mapping_listfree(&snmptoolctx->snmp_octlist); + snmp_mapping_listfree(&snmptoolctx->snmp_oidlist); + snmp_mapping_listfree(&snmptoolctx->snmp_iplist); + snmp_mapping_listfree(&snmptoolctx->snmp_ticklist); + snmp_mapping_listfree(&snmptoolctx->snmp_cntlist); + snmp_mapping_listfree(&snmptoolctx->snmp_gaugelist); + snmp_mapping_listfree(&snmptoolctx->snmp_cnt64list); + snmp_mapping_listfree(&snmptoolctx->snmp_enumlist); + snmp_mapping_table_listfree(&snmptoolctx->snmp_tablelist); + snmp_enumtc_listfree(&snmptoolctx->snmp_tclist); + free(snmptoolctx->mappings); + + return (0); +} + +static void +snmp_dump_enumpairs(struct enum_pairs *headp) +{ + struct enum_pair *entry; + + if (headp == NULL) + return; + + fprintf(stderr,"enums: "); + STAILQ_FOREACH(entry, headp, link) + fprintf(stderr,"%d - %s, ", entry->enum_val, + (entry->enum_str == NULL)?"NULL":entry->enum_str); + + fprintf(stderr,"; "); +} + +void +snmp_dump_oid2str(struct snmp_oid2str *entry) +{ + char buf[ASN_OIDSTRLEN]; + + if (entry != NULL) { + memset(buf, 0, sizeof(buf)); + asn_oid2str_r(&(entry->var), buf); + DEBUG(stderr, "%s - %s - %d - %d - %d", buf, entry->string, + entry->syntax, entry->access, entry->strlen); + snmp_dump_enumpairs(entry->snmp_enum); + DEBUG(stderr,"%s \n", (entry->table_idx == NULL)?"No table": + entry->table_idx->string); + } +} + +static void +snmp_dump_indexlist(struct snmp_idxlist *headp) +{ + struct index *entry; + + if (headp == NULL) + return; + + STAILQ_FOREACH(entry, headp, link) { + fprintf(stderr,"%d, ", entry->syntax); + snmp_dump_enumpairs(entry->snmp_enum); + } + + fprintf(stderr,"\n"); +} + +/* Initialize the enum pairs list of a oid2str entry. */ +struct enum_pairs * +enum_pairs_init(void) +{ + struct enum_pairs *snmp_enum; + + if ((snmp_enum = malloc(sizeof(struct enum_pairs))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (NULL); + } + + STAILQ_INIT(snmp_enum); + return (snmp_enum); +} + +/* + * Given a number and string, allocate memory for a (int, string) pair and add + * it to the given oid2str mapping entry's enum pairs list. + */ +int32_t +enum_pair_insert(struct enum_pairs *headp, int32_t enum_val, char *enum_str) +{ + struct enum_pair *e_new; + + if ((e_new = malloc(sizeof(struct enum_pair))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (-1); + } + + memset(e_new, 0, sizeof(struct enum_pair)); + + if ((e_new->enum_str = malloc(strlen(enum_str) + 1)) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + free(e_new); + return (-1); + } + + e_new->enum_val = enum_val; + strlcpy(e_new->enum_str, enum_str, strlen(enum_str) + 1); + STAILQ_INSERT_TAIL(headp, e_new, link); + + return (1); + +} + +/* + * Insert an entry in a list - entries are lexicographicaly order by asn_oid. + * Returns 1 on success, -1 if list is not initialized, 0 if a matching oid already + * exists. Error cheking is left to calling function. + */ +static int +snmp_mapping_insert(struct snmp_mapping *headp, struct snmp_oid2str *entry) +{ + int32_t rc; + struct snmp_oid2str *temp, *prev; + + if (entry == NULL) + return(-1); + + if ((prev = SLIST_FIRST(headp)) == NULL || + asn_compare_oid(&(entry->var), &(prev->var)) < 0) { + SLIST_INSERT_HEAD(headp, entry, link); + return (1); + } else + rc = -1; /* Make the compiler happy. */ + + SLIST_FOREACH(temp, headp, link) { + if ((rc = asn_compare_oid(&(entry->var), &(temp->var))) <= 0) + break; + prev = temp; + rc = -1; + } + + switch (rc) { + case 0: + /* Ops, matching OIDs - hope the rest info also matches. */ + if (strncmp(temp->string, entry->string, entry->strlen)) { + syslog(LOG_INFO, "Matching OIDs with different string " + "mappings: old - %s, new - %s", temp->string, + entry->string); + return (-1); + } + /* + * Ok, we have that already. + * As long as the strings match - don't complain. + */ + return (0); + + case 1: + SLIST_INSERT_AFTER(temp, entry, link); + break; + + case -1: + SLIST_INSERT_AFTER(prev, entry, link); + break; + + default: + /* NOTREACHED */ + return (-1); + } + + return (1); +} + +int32_t +snmp_node_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_nodelist,entry)); + + return (-1); +} + +static int32_t +snmp_int_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_intlist,entry)); + + return (-1); +} + +static int32_t +snmp_oct_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_octlist,entry)); + + return (-1); +} + +static int32_t +snmp_oid_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_oidlist,entry)); + + return (-1); +} + +static int32_t +snmp_ip_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_iplist,entry)); + + return (-1); +} + +static int32_t +snmp_tick_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_ticklist,entry)); + + return (-1); +} + +static int32_t +snmp_cnt_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_cntlist,entry)); + + return (-1); +} + +static int32_t +snmp_gauge_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_gaugelist,entry)); + + return (-1); +} + +static int32_t +snmp_cnt64_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_cnt64list,entry)); + + return (-1); +} + +int32_t +snmp_enum_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + if (snmptoolctx != NULL && snmptoolctx->mappings) + return (snmp_mapping_insert(&snmptoolctx->snmp_enumlist,entry)); + + return (-1); +} + +int32_t +snmp_leaf_insert(struct snmp_toolinfo *snmptoolctx, struct snmp_oid2str *entry) +{ + switch (entry->syntax) { + case SNMP_SYNTAX_INTEGER: + return (snmp_int_insert(snmptoolctx, entry)); + case SNMP_SYNTAX_OCTETSTRING: + return (snmp_oct_insert(snmptoolctx, entry)); + case SNMP_SYNTAX_OID: + return (snmp_oid_insert(snmptoolctx, entry)); + case SNMP_SYNTAX_IPADDRESS: + return (snmp_ip_insert(snmptoolctx, entry)); + case SNMP_SYNTAX_COUNTER: + return (snmp_cnt_insert(snmptoolctx, entry)); + case SNMP_SYNTAX_GAUGE: + return (snmp_gauge_insert(snmptoolctx, entry)); + case SNMP_SYNTAX_TIMETICKS: + return (snmp_tick_insert(snmptoolctx, entry)); + case SNMP_SYNTAX_COUNTER64: + return (snmp_cnt64_insert(snmptoolctx, entry)); + default: + break; + } + + return (-1); +} + +static int32_t +snmp_index_insert(struct snmp_idxlist *headp, struct index *idx) +{ + if (headp == NULL || index == NULL) + return (-1); + + STAILQ_INSERT_TAIL(headp, idx, link); + return (1); +} + +int32_t +snmp_syntax_insert(struct snmp_idxlist *headp, struct enum_pairs *enums, + enum snmp_syntax syntax, enum snmp_tc tc) +{ + struct index *idx; + + if ((idx = malloc(sizeof(struct index))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (-1); + } + + memset(idx, 0, sizeof(struct index)); + + if (snmp_index_insert(headp, idx) < 0) { + free(idx); + return (-1); + } + + idx->syntax = syntax; + idx->snmp_enum = enums; + idx->tc = tc; + + return (1); +} + +int32_t +snmp_table_insert(struct snmp_toolinfo *snmptoolctx, + struct snmp_index_entry *entry) +{ + int32_t rc; + struct snmp_index_entry *temp, *prev; + + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL || + entry == NULL) + return(-1); + + if ((prev = SLIST_FIRST(&snmptoolctx->snmp_tablelist)) == NULL || + asn_compare_oid(&(entry->var), &(prev->var)) < 0) { + SLIST_INSERT_HEAD(&snmptoolctx->snmp_tablelist, entry, link); + return (1); + } else + rc = -1; /* Make the compiler happy. */ + + SLIST_FOREACH(temp, &snmptoolctx->snmp_tablelist, link) { + if ((rc = asn_compare_oid(&(entry->var), &(temp->var))) <= 0) + break; + prev = temp; + rc = -1; + } + + switch (rc) { + case 0: + /* Ops, matching OIDs - hope the rest info also matches. */ + if (strncmp(temp->string, entry->string, entry->strlen)) { + syslog(LOG_INFO, "Matching OIDs with different string " + "mapping - old - %s, new - %s", temp->string, + entry->string); + return (-1); + } + return(0); + + case 1: + SLIST_INSERT_AFTER(temp, entry, link); + break; + + case -1: + SLIST_INSERT_AFTER(prev, entry, link); + break; + + default: + /* NOTREACHED */ + return (-1); + } + + return (1); +} + +struct enum_type * +snmp_enumtc_init(char *name) +{ + struct enum_type *enum_tc; + + if ((enum_tc = malloc(sizeof(struct enum_type))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (NULL); + } + + memset(enum_tc, 0, sizeof(struct enum_type)); + if ((enum_tc->name = malloc(strlen(name) + 1)) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + free(enum_tc); + return (NULL); + } + strlcpy(enum_tc->name, name, strlen(name) + 1); + + return (enum_tc); +} + +void +snmp_enumtc_free(struct enum_type *tc) +{ + if (tc->name) + free(tc->name); + if (tc->snmp_enum) + enum_pairs_free(tc->snmp_enum); + free(tc); +} + +void +snmp_enumtc_insert(struct snmp_toolinfo *snmptoolctx, struct enum_type *entry) +{ + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL) + return; /* XXX no error handling? */ + + SLIST_INSERT_HEAD(&snmptoolctx->snmp_tclist, entry, link); +} + +struct enum_type * +snmp_enumtc_lookup(struct snmp_toolinfo *snmptoolctx, char *name) +{ + struct enum_type *temp; + + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL) + return (NULL); + + SLIST_FOREACH(temp, &snmptoolctx->snmp_tclist, link) { + if (strcmp(temp->name, name) == 0) + return (temp); + } + return (NULL); +} + +static void +snmp_mapping_dumplist(struct snmp_mapping *headp) +{ + char buf[ASN_OIDSTRLEN]; + struct snmp_oid2str *entry; + + if (headp == NULL) + return; + + SLIST_FOREACH(entry,headp,link) { + memset(buf, 0, sizeof(buf)); + asn_oid2str_r(&(entry->var), buf); + fprintf(stderr, "%s - %s - %d - %d - %d", buf, entry->string, + entry->syntax, entry->access ,entry->strlen); + fprintf(stderr," - %s \n", (entry->table_idx == NULL)? + "No table":entry->table_idx->string); + } +} + +static void +snmp_mapping_dumptable(struct snmp_table_index *headp) +{ + char buf[ASN_OIDSTRLEN]; + struct snmp_index_entry *entry; + + if (headp == NULL) + return; + + SLIST_FOREACH(entry, headp, link) { + memset(buf, 0, sizeof(buf)); + asn_oid2str_r(&(entry->var), buf); + fprintf(stderr,"%s - %s - %d - ", buf, entry->string, + entry->strlen); + snmp_dump_indexlist(&(entry->index_list)); + } +} + +void +snmp_mapping_dump(struct snmp_toolinfo *snmptoolctx /* int bits */) +{ + if (!_bsnmptools_debug) + return; + + if (snmptoolctx == NULL) { + fprintf(stderr,"No snmptool context!\n"); + return; + } + + if (snmptoolctx->mappings == NULL) { + fprintf(stderr,"No mappings!\n"); + return; + } + + fprintf(stderr,"snmp_nodelist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_nodelist); + + fprintf(stderr,"snmp_intlist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_intlist); + + fprintf(stderr,"snmp_octlist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_octlist); + + fprintf(stderr,"snmp_oidlist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_oidlist); + + fprintf(stderr,"snmp_iplist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_iplist); + + fprintf(stderr,"snmp_ticklist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_ticklist); + + fprintf(stderr,"snmp_cntlist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_cntlist); + + fprintf(stderr,"snmp_gaugelist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_gaugelist); + + fprintf(stderr,"snmp_cnt64list:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_cnt64list); + + fprintf(stderr,"snmp_enumlist:\n"); + snmp_mapping_dumplist(&snmptoolctx->snmp_enumlist); + + fprintf(stderr,"snmp_tablelist:\n"); + snmp_mapping_dumptable(&snmptoolctx->snmp_tablelist); +} + +char * +enum_string_lookup(struct enum_pairs *headp, int32_t enum_val) +{ + struct enum_pair *temp; + + if (headp == NULL) + return (NULL); + + STAILQ_FOREACH(temp, headp, link) { + if (temp->enum_val == enum_val) + return (temp->enum_str); + } + + return (NULL); +} + +int32_t +enum_number_lookup(struct enum_pairs *headp, char *e_str) +{ + struct enum_pair *tmp; + + if (headp == NULL) + return (-1); + + STAILQ_FOREACH(tmp, headp, link) + if (strncmp(tmp->enum_str, e_str, strlen(tmp->enum_str)) == 0) + return (tmp->enum_val); + + return (-1); +} + +static int32_t +snmp_lookuplist_string(struct snmp_mapping *headp, struct snmp_object *s) +{ + struct snmp_oid2str *temp; + + if (headp == NULL) + return (-1); + + SLIST_FOREACH(temp, headp, link) + if (asn_compare_oid(&(temp->var), &(s->val.var)) == 0) + break; + + if ((s->info = temp) == NULL) + return (-1); + + return (1); +} + +/* provided an asn_oid find the corresponding string for it */ +static int32_t +snmp_lookup_leaf(struct snmp_mapping *headp, struct snmp_object *s) +{ + struct snmp_oid2str *temp; + + if (headp == NULL) + return (-1); + + SLIST_FOREACH(temp,headp,link) { + if ((asn_compare_oid(&(temp->var), &(s->val.var)) == 0) || + (asn_is_suboid(&(temp->var), &(s->val.var)))) { + s->info = temp; + return (1); + } + } + + return (-1); +} + +int32_t +snmp_lookup_leafstring(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s) +{ + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL || s == NULL) + return (-1); + + switch (s->val.syntax) { + case SNMP_SYNTAX_INTEGER: + return (snmp_lookup_leaf(&snmptoolctx->snmp_intlist, s)); + case SNMP_SYNTAX_OCTETSTRING: + return (snmp_lookup_leaf(&snmptoolctx->snmp_octlist, s)); + case SNMP_SYNTAX_OID: + return (snmp_lookup_leaf(&snmptoolctx->snmp_oidlist, s)); + case SNMP_SYNTAX_IPADDRESS: + return (snmp_lookup_leaf(&snmptoolctx->snmp_iplist, s)); + case SNMP_SYNTAX_COUNTER: + return (snmp_lookup_leaf(&snmptoolctx->snmp_cntlist, s)); + case SNMP_SYNTAX_GAUGE: + return (snmp_lookup_leaf( + &snmptoolctx->snmp_gaugelist, s)); + case SNMP_SYNTAX_TIMETICKS: + return (snmp_lookup_leaf( + &snmptoolctx->snmp_ticklist, s)); + case SNMP_SYNTAX_COUNTER64: + return (snmp_lookup_leaf( + &snmptoolctx->snmp_cnt64list, s)); + case SNMP_SYNTAX_NOSUCHOBJECT: + /* FALLTHROUGH */ + case SNMP_SYNTAX_NOSUCHINSTANCE: + /* FALLTHROUGH */ + case SNMP_SYNTAX_ENDOFMIBVIEW: + return (snmp_lookup_allstring(snmptoolctx, s)); + default: + warnx("Unknown syntax - %d", s->val.syntax); + break; + } + + return (-1); +} + +int32_t +snmp_lookup_enumstring(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s) +{ + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL || s == NULL) + return (-1); + + return (snmp_lookuplist_string(&snmptoolctx->snmp_enumlist, s)); +} + +int32_t +snmp_lookup_oidstring(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s) +{ + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL || s == NULL) + return (-1); + + return (snmp_lookuplist_string(&snmptoolctx->snmp_oidlist, s)); +} + +int32_t +snmp_lookup_nodestring(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s) +{ + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL || s == NULL) + return (-1); + + return (snmp_lookuplist_string(&snmptoolctx->snmp_nodelist, s)); +} + +int32_t +snmp_lookup_allstring(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s) +{ + if (snmptoolctx == NULL || snmptoolctx->mappings == NULL) + return (-1); + + if (snmp_lookup_leaf(&snmptoolctx->snmp_intlist, s) > 0) + return (1); + if (snmp_lookup_leaf(&snmptoolctx->snmp_octlist, s) > 0) + return (1); + if (snmp_lookup_leaf(&snmptoolctx->snmp_oidlist, s) > 0) + return (1); + if (snmp_lookup_leaf(&snmptoolctx->snmp_iplist, s) > 0) + return (1); + if (snmp_lookup_leaf(&snmptoolctx->snmp_cntlist, s) > 0) + return (1); + if (snmp_lookup_leaf(&snmptoolctx->snmp_gaugelist, s) > 0) + return (1); + if (snmp_lookup_leaf(&snmptoolctx->snmp_ticklist, s) > 0) + return (1); + if (snmp_lookup_leaf(&snmptoolctx->snmp_cnt64list, s) > 0) + return (1); + if (snmp_lookuplist_string(&snmptoolctx->snmp_enumlist, s) > 0) + return (1); + if (snmp_lookuplist_string(&snmptoolctx->snmp_nodelist, s) > 0) + return (1); + + return (-1); +} + +int32_t +snmp_lookup_nonleaf_string(struct snmp_toolinfo *snmptoolctx, + struct snmp_object *s) +{ + if (snmptoolctx == NULL) + return (-1); + + if (snmp_lookuplist_string(&snmptoolctx->snmp_nodelist, s) > 0) + return (1); + if (snmp_lookuplist_string(&snmptoolctx->snmp_enumlist, s) > 0) + return (1); + + return (-1); +} + +static int32_t +snmp_lookup_oidlist(struct snmp_mapping *hp, struct snmp_object *s, char *oid) +{ + struct snmp_oid2str *temp; + + if (hp == NULL) + return (-1); + + SLIST_FOREACH(temp, hp, link) { + if (temp->strlen != strlen(oid)) + continue; + + if (strncmp(temp->string, oid, temp->strlen)) + continue; + + s->val.syntax = temp->syntax; + s->info = temp; + asn_append_oid(&(s->val.var), &(temp->var)); + return (1); + } + + return (-1); +} + +static int32_t +snmp_lookup_tablelist(struct snmp_toolinfo *snmptoolctx, + struct snmp_table_index *headp, struct snmp_object *s, char *oid) +{ + struct snmp_index_entry *temp; + + if (snmptoolctx == NULL || headp == NULL) + return (-1); + + SLIST_FOREACH(temp, headp, link) { + if (temp->strlen != strlen(oid)) + continue; + + if (strncmp(temp->string, oid, temp->strlen)) + continue; + + /* + * Another hack here - if we were given a table name + * return the corresponding pointer to it's entry. + * That should not change the reponce we'll get. + */ + s->val.syntax = SNMP_SYNTAX_NULL; + asn_append_oid(&(s->val.var), &(temp->var)); + if (snmp_lookup_leaf(&snmptoolctx->snmp_nodelist, s) > 0) + return (1); + else + return (-1); + } + + return (-1); +} + +int32_t +snmp_lookup_oidall(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s, + char *oid) +{ + if (snmptoolctx == NULL || s == NULL || oid == NULL) + return (-1); + + if (snmp_lookup_oidlist(&snmptoolctx->snmp_intlist, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_octlist, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_oidlist, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_iplist, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_ticklist, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_cntlist, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_gaugelist, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_cnt64list, s, oid) > 0) + return (1); + if (snmp_lookup_oidlist(&snmptoolctx->snmp_nodelist, s, oid) > 0) + return (1); + if (snmp_lookup_tablelist(snmptoolctx, &snmptoolctx->snmp_tablelist, + s, oid) > 0) + return (1); + + return (-1); +} + +int32_t +snmp_lookup_enumoid(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s, + char *oid) +{ + if (snmptoolctx == NULL || s == NULL) + return (-1); + + return (snmp_lookup_oidlist(&snmptoolctx->snmp_enumlist, s, oid)); +} + +int32_t +snmp_lookup_oid(struct snmp_toolinfo *snmptoolctx, struct snmp_object *s, + char *oid) +{ + if (snmptoolctx == NULL || s == NULL) + return (-1); + + switch (s->val.syntax) { + case SNMP_SYNTAX_INTEGER: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_intlist, + s, oid)); + case SNMP_SYNTAX_OCTETSTRING: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_octlist, + s, oid)); + case SNMP_SYNTAX_OID: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_oidlist, + s, oid)); + case SNMP_SYNTAX_IPADDRESS: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_iplist, + s, oid)); + case SNMP_SYNTAX_COUNTER: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_cntlist, + s, oid)); + case SNMP_SYNTAX_GAUGE: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_gaugelist, + s, oid)); + case SNMP_SYNTAX_TIMETICKS: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_ticklist, + s, oid)); + case SNMP_SYNTAX_COUNTER64: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_cnt64list, + s, oid)); + case SNMP_SYNTAX_NULL: + return (snmp_lookup_oidlist(&snmptoolctx->snmp_nodelist, + s, oid)); + default: + warnx("Unknown syntax - %d", s->val.syntax); + break; + } + + return (-1); +} diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c new file mode 100644 index 000000000000..dc22c697e104 --- /dev/null +++ b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.c @@ -0,0 +1,1287 @@ +/*- + * Copyright (c) 2006 The FreeBSD Project + * All rights reserved. + * + * Author: Shteryana Shopova + * + * Redistribution of this software and documentation and use in source and + * binary forms, with or without modification, are permitted provided that + * the following conditions are met: + * + * 1. Redistributions of source code or documentation must retain the above + * copyright notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Textual conventions for OctetStrings + * + * $FreeBSD$ + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include "bsnmptc.h" +#include "bsnmptools.h" + +/* OctetString, DisplayString */ +static char *snmp_oct2str(uint32_t, char *, char *); +static char *snmp_str2asn_oid(char *, struct asn_oid *); +static int parse_octetstring(struct snmp_value *, char *); + +/* DateAndTime */ +static char *snmp_octstr2date(uint32_t, char *, char *); +static char *snmp_date2asn_oid(char * , struct asn_oid *); +static int parse_dateandtime(struct snmp_value *, char *); + +/* PhysAddress */ +static char *snmp_oct2physAddr(uint32_t, char *, char *); +static char *snmp_addr2asn_oid(char *, struct asn_oid *); +static int parse_physaddress(struct snmp_value *, char *); + +/* NTPTimeStamp */ +static char *snmp_oct2ntp_ts(uint32_t, char *, char *); +static char *snmp_ntp_ts2asn_oid(char *, struct asn_oid *); +static int parse_ntp_ts(struct snmp_value *, char *); + +/* BridgeId */ +static char *snmp_oct2bridgeid(uint32_t, char *, char *); +static char *snmp_bridgeid2oct(char *, struct asn_oid *); +static int parse_bridge_id(struct snmp_value *, char *); + +/* BridgePortId */ +static char *snmp_oct2bport_id(uint32_t, char *, char *); +static char *snmp_bport_id2oct(char *, struct asn_oid *); +static int parse_bport_id(struct snmp_value *, char *); + +/* InetAddress */ +static char *snmp_oct2inetaddr(uint32_t len, char *octets, char *buf); +static char *snmp_inetaddr2oct(char *str, struct asn_oid *oid); +static int32_t parse_inetaddr(struct snmp_value *value, char *string); + +static char *snmp_oct2bits(uint32_t len, char *octets, char *buf); +static char *snmp_bits2oct(char *str, struct asn_oid *oid); +static int32_t parse_bits(struct snmp_value *value, char *string); + +struct snmp_text_conv { + enum snmp_tc tc; + const char *tc_str; + int32_t len; + snmp_oct2tc_f oct2tc; + snmp_tc2oid_f tc2oid; + snmp_tc2oct_f tc2oct; +} text_convs[] = { + { SNMP_STRING, "OctetString", SNMP_VAR_STRSZ, + snmp_oct2str, snmp_str2asn_oid, parse_octetstring }, + + { SNMP_DISPLAYSTRING, "DisplayString" , SNMP_VAR_STRSZ, + snmp_oct2str, snmp_str2asn_oid, parse_octetstring }, + + { SNMP_DATEANDTIME, "DateAndTime", SNMP_DATETIME_STRSZ, + snmp_octstr2date, snmp_date2asn_oid, parse_dateandtime }, + + { SNMP_PHYSADDR, "PhysAddress", SNMP_PHYSADDR_STRSZ, + snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress }, + + { SNMP_ATMESI, "AtmESI", SNMP_PHYSADDR_STRSZ, + snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress }, + + { SNMP_NTP_TIMESTAMP, "NTPTimeStamp", SNMP_NTP_TS_STRSZ, + snmp_oct2ntp_ts, snmp_ntp_ts2asn_oid, parse_ntp_ts }, + + { SNMP_MACADDRESS, "MacAddress", SNMP_PHYSADDR_STRSZ, + snmp_oct2physAddr, snmp_addr2asn_oid, parse_physaddress }, + + { SNMP_BRIDGE_ID, "BridgeId", SNMP_BRIDGEID_STRSZ, + snmp_oct2bridgeid, snmp_bridgeid2oct, parse_bridge_id }, + + { SNMP_BPORT_ID, "BridgePortId", SNMP_BPORT_STRSZ, + snmp_oct2bport_id, snmp_bport_id2oct, parse_bport_id }, + + { SNMP_INETADDRESS, "InetAddress", SNMP_INADDRS_STRSZ, + snmp_oct2inetaddr, snmp_inetaddr2oct, parse_inetaddr }, + + { SNMP_TC_OWN, "BITS", SNMP_VAR_STRSZ, + snmp_oct2bits, snmp_bits2oct, parse_bits }, + + { SNMP_UNKNOWN, "Unknown", SNMP_VAR_STRSZ, snmp_oct2str, + snmp_str2asn_oid, parse_octetstring } /* keep last */ +}; + +/* Common API */ +enum snmp_tc +snmp_get_tc(char *str) +{ + int i; + for (i = 0; i < SNMP_UNKNOWN; i++) { + if (!strncmp(text_convs[i].tc_str, str, + strlen(text_convs[i].tc_str))) + return (text_convs[i].tc); + } + + return (SNMP_STRING); +} + +char * +snmp_oct2tc(enum snmp_tc tc, uint32_t len, char *octets) +{ + uint32_t tc_len; + char * buf; + + if (tc < 0 || tc > SNMP_UNKNOWN) + tc = SNMP_UNKNOWN; + + if (text_convs[tc].len > 0) + tc_len = text_convs[tc].len; + else + tc_len = 2 * len + 3; + + if ((buf = malloc(tc_len)) == NULL ) { + syslog(LOG_ERR, "malloc failed - %s", strerror(errno)); + return (NULL); + } + + memset(buf, 0, tc_len); + if (text_convs[tc].oct2tc(len, octets, buf) == NULL) { + free(buf); + return (NULL); + } + + return (buf); +} + +char * +snmp_tc2oid(enum snmp_tc tc, char *str, struct asn_oid *oid) +{ + if (tc < 0 || tc > SNMP_UNKNOWN) + tc = SNMP_UNKNOWN; + + return (text_convs[tc].tc2oid(str, oid)); +} + +int32_t +snmp_tc2oct(enum snmp_tc tc, struct snmp_value *value, char *string) +{ + if (tc < 0 || tc > SNMP_UNKNOWN) + tc = SNMP_UNKNOWN; + + return (text_convs[tc].tc2oct(value, string)); +} + +/***************************************************** +* Basic OctetString type. +*/ +static char * +snmp_oct2str(uint32_t len, char *octets, char *buf) +{ + uint8_t binary = 0; + uint32_t i; + char *ptr; + + if (len > MAX_OCTSTRING_LEN || octets == NULL || buf == NULL) + return (NULL); + + for (ptr = buf, i = 0; i < len; i++) + if (!isprint(octets[i])) { + binary = 1; + buf += sprintf(buf, "0x"); + break; + } + + for (ptr = buf, i = 0; i < len; i++) + if (!binary) + ptr += sprintf(ptr, "%c", octets[i]); + else + ptr += sprintf(ptr, "%2.2x", (u_char)octets[i]); + + return (buf); +} + +static char * +snmp_str2asn_oid(char *str, struct asn_oid *oid) +{ + uint32_t i, len = 0; + + /* + * OctetStrings are allowed max length of ASN_MAXOCTETSTRING, + * but trying to index an entry with such a long OctetString + * will fail anyway. + */ + for (len = 0; len < ASN_MAXOIDLEN; len++) { + if (strchr(",]", *(str + len)) != NULL) + break; + } + + if (len >= ASN_MAXOIDLEN) + return (NULL); + + if (snmp_suboid_append(oid, (asn_subid_t) len) < 0) + return (NULL); + + for (i = 0; i < len; i++) + if (snmp_suboid_append(oid, (asn_subid_t) *(str + i)) < 0) + return (NULL); + + return (str + len); +} + +static int32_t +parse_octetstring(struct snmp_value *value, char *val) +{ + size_t len; + + if ((len = strlen(val)) >= MAX_OCTSTRING_LEN) { + warnx("Octetstring too long - %d is max allowed", + MAX_OCTSTRING_LEN - 1); + return (-1); + } + + value->v.octetstring.len = len; + + if((value->v.octetstring.octets = malloc(len)) == NULL) { + syslog(LOG_ERR,"malloc failed: %s", strerror(errno)); + return (-1); + } + + memcpy(value->v.octetstring.octets, val, len); + value->syntax = SNMP_SYNTAX_OCTETSTRING; + + return (0); +} + +/************************************************************* + * DateAndTime + ************************************************************* + * rfc 2579 specification: + * DateAndTime ::= TEXTUAL-CONVENTION + * DISPLAY-HINT "2d-1d-1d,1d:1d:1d.1d,1a1d:1d" + * STATUS current + * DESCRIPTION + * "A date-time specification. + * + * field octets contents range + * ----- ------ -------- ----- + * 1 1-2 year* 0..65536 + * 2 3 month 1..12 + * 3 4 day 1..31 + * 4 5 hour 0..23 + * 5 6 minutes 0..59 + * 6 7 seconds 0..60 + * (use 60 for leap-second) + * 7 8 deci-seconds 0..9 + * 8 9 direction from UTC '+' / '-' + * 9 10 hours from UTC* 0..13 + * 10 11 minutes from UTC 0..59 + * + * * Notes: + * - the value of year is in network-byte order + * - daylight saving time in New Zealand is +13 + * + * For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be + * displayed as: + * + * 1992-5-26,13:30:15.0,-4:0 + */ +static char * +snmp_octstr2date(uint32_t len, char *octets, char *buf) +{ + int year; + char *ptr; + + if (len != SNMP_DATETIME_OCTETS || octets == NULL || buf == NULL) + return (NULL); + + buf[0]= '\0'; + year = (octets[0] << 8); + year += (octets[1]); + + ptr = buf; + ptr += sprintf(ptr, "%4.4d-%.2d-%.2d, ", year, octets[2],octets[3]); + ptr += sprintf(ptr, "%2.2d:%2.2d:%2.2d.%.2d, ", octets[4],octets[5], + octets[6],octets[7]); + ptr += sprintf(ptr, "%c%.2d:%.2d", octets[8],octets[9],octets[10]); + + return (buf); +} + +static char * +snmp_date2asn_oid(char *str, struct asn_oid *oid) +{ + char *endptr, *ptr; + uint32_t v; + int32_t saved_errno; + + if (snmp_suboid_append(oid, (asn_subid_t) SNMP_DATETIME_OCTETS) < 0) + return (NULL); + + /* Read 'YYYY-' and write it in two subs. */ + ptr = str; + saved_errno = errno; + errno = 0; + v = strtoul(ptr, &endptr, 10); + if (v > 0xffff) + goto error; + else + errno = saved_errno; + if (*endptr != '-') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) ((v & 0xff00) >> 8)) < 0) + return (NULL); + if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xff)) < 0) + return (NULL); + + /* 'MM-' */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (*endptr != '-') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + /* 'DD,' */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (*endptr != '-') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + /* 'HH:' */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (*endptr != ':') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + /* 'MM:' */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (*endptr != ':') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + /* 'SS.' */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (*endptr != '.') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + /* 'M(mseconds),' */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (*endptr != ',') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + /* 'UTC' - optional */ + ptr = endptr + 1; + if (*ptr == 'U' && *(ptr + 1) == 'T' && *(ptr + 1) == 'C') + ptr += 3; + + /* '+/-' */ + if (*ptr == '-' || *ptr == '+') { + if (snmp_suboid_append(oid, (asn_subid_t) (*ptr)) < 0) + return (NULL); + } else + goto error1; + + /* 'HH:' */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (*endptr != ':') + goto error1; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + /* 'MM' - last one - ignore endptr here. */ + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0) + goto error; + else + errno = saved_errno; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + return (endptr); + + error: + errno = saved_errno; + error1: + warnx("Date value %s not supported", str); + return (NULL); +} + +/* Read a DateAndTime string eg. 1992-5-26,13:30:15.0,-4:0. */ +static int32_t +parse_dateandtime(struct snmp_value *sv, char *val) +{ + char *endptr; + uint32_t v; + uint8_t date[SNMP_DATETIME_OCTETS]; + + /* 'YYYY-' */ + v = strtoul(val, &endptr, 10); + if (v > 0xffff || *endptr != '-') + goto error; + date[0] = ((v & 0xff00) >> 8); + date[1] = (v & 0xff); + val = endptr + 1; + + /* 'MM-' */ + v = strtoul(val, &endptr, 10); + if (v == 0 || v > 12 || *endptr != '-') + goto error; + date[2] = v; + val = endptr + 1; + + /* 'DD,' */ + v = strtoul(val, &endptr, 10); + if (v == 0 || v > 31 || *endptr != ',') + goto error; + date[3] = v; + val = endptr + 1; + + /* 'HH:' */ + v = strtoul(val, &endptr, 10); + if (v > 23 || *endptr != ':') + goto error; + date[4] = v; + val = endptr + 1; + + /* 'MM:' */ + v = strtoul(val, &endptr, 10); + if (v > 59 || *endptr != ':') + goto error; + date[5] = v; + val = endptr + 1; + + /* 'SS.' */ + v = strtoul(val, &endptr, 10); + if (v > 60 || *endptr != '.') + goto error; + date[6] = v; + val = endptr + 1; + + /* '(deci-)s,' */ + v = strtoul(val, &endptr, 10); + if (v > 9 || *endptr != ',') + goto error; + date[7] = v; + val = endptr + 1; + + /* offset - '+/-' */ + if (*val != '-' && *val != '+') + goto error; + date[8] = (uint8_t) *val; + val = endptr + 1; + + /* 'HH:' - offset from UTC */ + v = strtoul(val, &endptr, 10); + if (v > 13 || *endptr != ':') + goto error; + date[9] = v; + val = endptr + 1; + + /* 'MM'\0'' offset from UTC */ + v = strtoul(val, &endptr, 10); + if (v > 59 || *endptr != '\0') + goto error; + date[10] = v; + + if ((sv->v.octetstring.octets = malloc(SNMP_DATETIME_OCTETS)) == NULL) { + warnx("malloc() failed - %s", strerror(errno)); + return (-1); + } + + sv->v.octetstring.len = SNMP_DATETIME_OCTETS; + memcpy(sv->v.octetstring.octets, date, SNMP_DATETIME_OCTETS); + sv->syntax = SNMP_SYNTAX_OCTETSTRING; + return (1); + + error: + warnx("Date value %s not supported", val); + return (-1); +} + +/************************************************************** + * PhysAddress + */ +static char * +snmp_oct2physAddr(uint32_t len, char *octets, char *buf) +{ + char *ptr; + uint32_t i; + + if (len != SNMP_PHYSADDR_OCTETS || octets == NULL || buf == NULL) + return (NULL); + + buf[0]= '\0'; + + ptr = buf; + ptr += sprintf(ptr, "%2.2x", octets[0]); + for (i = 1; i < 6; i++) + ptr += sprintf(ptr, ":%2.2x", octets[i]); + + return (buf); +} + +static char * +snmp_addr2asn_oid(char *str, struct asn_oid *oid) +{ + char *endptr, *ptr; + uint32_t v, i; + int saved_errno; + + if (snmp_suboid_append(oid, (asn_subid_t) SNMP_PHYSADDR_OCTETS) < 0) + return (NULL); + + ptr = str; + for (i = 0; i < 5; i++) { + saved_errno = errno; + v = strtoul(ptr, &endptr, 16); + errno = saved_errno; + if (v > 0xff) { + warnx("Integer value %s not supported", str); + return (NULL); + } + if (*endptr != ':') { + warnx("Failed adding oid - %s",str); + return (NULL); + } + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + ptr = endptr + 1; + } + + /* The last one - don't check the ending char here. */ + saved_errno = errno; + v = strtoul(ptr, &endptr, 16); + errno = saved_errno; + if (v > 0xff) { + warnx("Integer value %s not supported", str); + return (NULL); + } + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + return (endptr); +} + +static int32_t +parse_physaddress(struct snmp_value *sv, char *val) +{ + char *endptr; + int32_t i; + uint32_t v; + uint8_t phys_addr[SNMP_PHYSADDR_OCTETS]; + + for (i = 0; i < 5; i++) { + v = strtoul(val, &endptr, 16); + if (v > 0xff) { + warnx("Integer value %s not supported", val); + return (-1); + } + if(*endptr != ':') { + warnx("Failed reading octet - %s", val); + return (-1); + } + phys_addr[i] = v; + val = endptr + 1; + } + + /* The last one - don't check the ending char here. */ + v = strtoul(val, &endptr, 16); + if (v > 0xff) { + warnx("Integer value %s not supported", val); + return (-1); + } + phys_addr[5] = v; + + if ((sv->v.octetstring.octets = malloc(SNMP_PHYSADDR_OCTETS)) == NULL) { + syslog(LOG_ERR,"malloc failed: %s", strerror(errno)); + return (-1); + } + + sv->v.octetstring.len = SNMP_PHYSADDR_OCTETS; + memcpy(sv->v.octetstring.octets, phys_addr, SNMP_PHYSADDR_OCTETS); + sv->syntax = SNMP_SYNTAX_OCTETSTRING; + return (1); +} + +/************************************************************** + * NTPTimeStamp + ************************************************************** + * NTP MIB, Revision 0.2, 7/25/97: + * NTPTimeStamp ::= TEXTUAL-CONVENTION + * DISPLAY-HINT "4x.4x" + * STATUS current + * DESCRIPTION + * "" + * SYNTAX OCTET STRING (SIZE(8)) + */ +static char * +snmp_oct2ntp_ts(uint32_t len, char *octets, char *buf) +{ + char *ptr; + uint32_t i; + + if (len != SNMP_NTP_TS_OCTETS || octets == NULL || buf == NULL) + return (NULL); + + buf[0]= '\0'; + + ptr = buf; + i = octets[0] * 1000 + octets[1] * 100 + octets[2] * 10 + octets[3]; + ptr += sprintf(ptr, "%4.4d", i); + i = octets[4] * 1000 + octets[5] * 100 + octets[6] * 10 + octets[7]; + ptr += sprintf(ptr, ".%4.4d", i); + + return (buf); +} + +static char * +snmp_ntp_ts2asn_oid(char *str, struct asn_oid *oid) +{ + char *endptr, *ptr; + uint32_t v, i, d; + struct asn_oid suboid; + int saved_errno; + + if (snmp_suboid_append(oid, (asn_subid_t) SNMP_NTP_TS_OCTETS) < 0) + return (NULL); + + ptr = str; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0 || (v / 1000) > 9) { + warnx("Integer value %s not supported", str); + errno = saved_errno; + return (NULL); + } else + errno = saved_errno; + + if (*endptr != '.') { + warnx("Failed adding oid - %s",str); + return (NULL); + } + + memset(&suboid, 0, sizeof(struct asn_oid)); + suboid.len = SNMP_NTP_TS_OCTETS; + + for (i = 0, d = 1000; i < 4; i++) { + suboid.subs[i] = v / d; + v = v % d; + d = d / 10; + } + + ptr = endptr + 1; + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + if (errno != 0 || (v / 1000) > 9) { + warnx("Integer value %s not supported", str); + errno = saved_errno; + return (NULL); + } else + errno = saved_errno; + + for (i = 0, d = 1000; i < 4; i++) { + suboid.subs[i + 4] = v / d; + v = v % d; + d = d / 10; + } + + asn_append_oid(oid, &suboid); + return (endptr); +} + +static int32_t +parse_ntp_ts(struct snmp_value *sv, char *val) +{ + char *endptr; + int32_t i, d, saved_errno; + uint32_t v; + uint8_t ntp_ts[SNMP_NTP_TS_OCTETS]; + + saved_errno = errno; + v = strtoul(val, &endptr, 10); + if (errno != 0 || (v / 1000) > 9) { + saved_errno = errno; + warnx("Integer value %s not supported", val); + return (-1); + } else + saved_errno = errno; + + if (*endptr != '.') { + warnx("Failed reading octet - %s", val); + return (-1); + } + + for (i = 0, d = 1000; i < 4; i++) { + ntp_ts[i] = v / d; + v = v % d; + d = d / 10; + } + val = endptr + 1; + + saved_errno = errno; + v = strtoul(val, &endptr, 10); + if (errno != 0 || (v / 1000) > 9) { + saved_errno = errno; + warnx("Integer value %s not supported", val); + return (-1); + } else + saved_errno = errno; + + for (i = 0, d = 1000; i < 4; i++) { + ntp_ts[i + 4] = v / d; + v = v % d; + d = d / 10; + } + + if ((sv->v.octetstring.octets = malloc(SNMP_NTP_TS_OCTETS)) == NULL) { + syslog(LOG_ERR,"malloc failed: %s", strerror(errno)); + return (-1); + } + + sv->v.octetstring.len = SNMP_NTP_TS_OCTETS; + memcpy(sv->v.octetstring.octets, ntp_ts, SNMP_NTP_TS_OCTETS); + sv->syntax = SNMP_SYNTAX_OCTETSTRING; + return (1); +} + +/************************************************************** + * BridgeId + ************************************************************** + * BRIDGE-MIB, REVISION "200509190000Z" + * BridgeId ::= TEXTUAL-CONVENTION + * STATUS current + * DESCRIPTION + * "The Bridge-Identifier, as used in the Spanning Tree + * Protocol, to uniquely identify a bridge. Its first two + * octets (in network byte order) contain a priority value, + * and its last 6 octets contain the MAC address used to + * refer to a bridge in a unique fashion (typically, the + * numerically smallest MAC address of all ports on the + * bridge)." + * SYNTAX OCTET STRING (SIZE (8)) + */ +static char * +snmp_oct2bridgeid(uint32_t len, char *octets, char *buf) +{ + char *ptr; + uint32_t i, priority; + + if (len != SNMP_BRIDGEID_OCTETS || octets == NULL || buf == NULL) + return (NULL); + + buf[0]= '\0'; + ptr = buf; + + priority = octets[0] << 8; + priority += octets[1]; + if (priority > SNMP_MAX_BRIDGE_PRIORITY) { + warnx("Invalid bridge priority %d", priority); + return (NULL); + } else + ptr += sprintf(ptr, "%d.", octets[0]); + + ptr += sprintf(ptr, "%2.2x", octets[2]); + + for (i = 1; i < 6; i++) + ptr += sprintf(ptr, ":%2.2x", octets[i + 2]); + + return (buf); +} + +static char * +snmp_bridgeid2oct(char *str, struct asn_oid *oid) +{ + char *endptr, *ptr; + uint32_t v, i; + int32_t saved_errno; + + if (snmp_suboid_append(oid, (asn_subid_t) SNMP_BRIDGEID_OCTETS) < 0) + return (NULL); + + ptr = str; + /* Read the priority. */ + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + errno = 0; + + if (v > SNMP_MAX_BRIDGE_PRIORITY || errno != 0 || *endptr != '.') { + errno = saved_errno; + warnx("Bad bridge priority value %d", v); + return (NULL); + } + + if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xff00)) < 0) + return (NULL); + + if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xff)) < 0) + return (NULL); + + ptr = endptr + 1; + for (i = 0; i < 5; i++) { + saved_errno = errno; + v = strtoul(ptr, &endptr, 16); + errno = saved_errno; + if (v > 0xff) { + warnx("Integer value %s not supported", str); + return (NULL); + } + if (*endptr != ':') { + warnx("Failed adding oid - %s",str); + return (NULL); + } + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + ptr = endptr + 1; + } + + /* The last one - don't check the ending char here. */ + saved_errno = errno; + v = strtoul(ptr, &endptr, 16); + errno = saved_errno; + if (v > 0xff) { + warnx("Integer value %s not supported", str); + return (NULL); + } + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + return (endptr); +} + +static int32_t +parse_bridge_id(struct snmp_value *sv, char *string) +{ + char *ptr, *endptr; + int32_t i, saved_errno; + uint32_t v; + uint8_t bridge_id[SNMP_BRIDGEID_OCTETS]; + + ptr = string; + /* Read the priority. */ + saved_errno = errno; + errno = 0; + v = strtoul(string, &endptr, 10); + errno = saved_errno; + + if (v > SNMP_MAX_BRIDGE_PRIORITY || errno != 0 || *endptr != '.') { + errno = saved_errno; + warnx("Bad bridge priority value %d", v); + return (-1); + } + + bridge_id[0] = (v & 0xff00); + bridge_id[1] = (v & 0xff); + + string = endptr + 1; + + for (i = 0; i < 5; i++) { + v = strtoul(string, &endptr, 16); + if (v > 0xff) { + warnx("Integer value %s not supported", string); + return (-1); + } + if(*endptr != ':') { + warnx("Failed reading octet - %s", string); + return (-1); + } + bridge_id[i + 2] = v; + string = endptr + 1; + } + + /* The last one - don't check the ending char here. */ + v = strtoul(string, &endptr, 16); + if (v > 0xff) { + warnx("Integer value %s not supported", string); + return (-1); + } + bridge_id[7] = v; + + if ((sv->v.octetstring.octets = malloc(SNMP_BRIDGEID_OCTETS)) == NULL) { + syslog(LOG_ERR,"malloc failed: %s", strerror(errno)); + return (-1); + } + + sv->v.octetstring.len = SNMP_BRIDGEID_OCTETS; + memcpy(sv->v.octetstring.octets, bridge_id, SNMP_BRIDGEID_OCTETS); + sv->syntax = SNMP_SYNTAX_OCTETSTRING; + return (1); +} + +/************************************************************** + * BridgePortId + ************************************************************** + * BEGEMOT-BRIDGE-MIB, LAST-UPDATED "200608100000Z" + * BridgePortId ::= TEXTUAL-CONVENTION + * DISPLAY-HINT "1x.1x" + * STATUS current + * DESCRIPTION + * "A port identifier that contains a bridge port's STP priority + * in the first octet and the port number in the second octet." + * SYNTAX OCTET STRING (SIZE(2)) + */ +static char * +snmp_oct2bport_id(uint32_t len, char *octets, char *buf) +{ + char *ptr; + + if (len != SNMP_BPORT_OCTETS || octets == NULL || buf == NULL) + return (NULL); + + buf[0]= '\0'; + ptr = buf; + + ptr += sprintf(ptr, "%d.", octets[0]); + ptr += sprintf(ptr, "%d", octets[1]); + + return (buf); +} + +static char * +snmp_bport_id2oct(char *str, struct asn_oid *oid) +{ + char *endptr, *ptr; + uint32_t v; + int saved_errno; + + if (snmp_suboid_append(oid, (asn_subid_t) SNMP_BPORT_OCTETS) < 0) + return (NULL); + + ptr = str; + /* Read the priority. */ + saved_errno = errno; + v = strtoul(ptr, &endptr, 10); + errno = 0; + + if (v > SNMP_MAX_BPORT_PRIORITY || errno != 0 || *endptr != '.') { + errno = saved_errno; + warnx("Bad bridge port priority value %d", v); + return (NULL); + } + + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + saved_errno = errno; + v = strtoul(ptr, &endptr, 16); + errno = saved_errno; + + if (v > 0xff) { + warnx("Bad port number - %d", v); + return (NULL); + } + + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + return (endptr); +} + +static int32_t +parse_bport_id(struct snmp_value *value, char *string) +{ + char *ptr, *endptr; + int saved_errno; + uint32_t v; + uint8_t bport_id[SNMP_BPORT_OCTETS]; + + ptr = string; + /* Read the priority. */ + saved_errno = errno; + errno = 0; + v = strtoul(string, &endptr, 10); + errno = saved_errno; + + if (v > SNMP_MAX_BPORT_PRIORITY || errno != 0 || *endptr != '.') { + errno = saved_errno; + warnx("Bad bridge port priority value %d", v); + return (-1); + } + + bport_id[0] = v; + + string = endptr + 1; + v = strtoul(string, &endptr, 16); + if (v > 0xff) { + warnx("Bad port number - %d", v); + return (-1); + } + + bport_id[1] = v; + + if ((value->v.octetstring.octets = malloc(SNMP_BPORT_OCTETS)) == NULL) { + syslog(LOG_ERR,"malloc failed: %s", strerror(errno)); + return (-1); + } + + value->v.octetstring.len = SNMP_BPORT_OCTETS; + memcpy(value->v.octetstring.octets, bport_id, SNMP_BPORT_OCTETS); + value->syntax = SNMP_SYNTAX_OCTETSTRING; + return (1); +} +/************************************************************** + * InetAddress + ************************************************************** + * INET-ADDRESS-MIB, REVISION "200502040000Z" + * InetAddress ::= TEXTUAL-CONVENTION + * STATUS current + * DESCRIPTION + * "Denotes a generic Internet address. + * + * An InetAddress value is always interpreted within the context + * of an InetAddressType value. Every usage of the InetAddress + * textual convention is required to specify the InetAddressType + * object that provides the context. It is suggested that the + * InetAddressType object be logically registered before the + * object(s) that use the InetAddress textual convention, if + * they appear in the same logical row. + * + * The value of an InetAddress object must always be + * consistent with the value of the associated InetAddressType + * object. Attempts to set an InetAddress object to a value + * inconsistent with the associated InetAddressType + * must fail with an inconsistentValue error. + * + * When this textual convention is used as the syntax of an + * index object, there may be issues with the limit of 128 + * sub-identifiers specified in SMIv2, STD 58. In this case, + * the object definition MUST include a 'SIZE' clause to + * limit the number of potential instance sub-identifiers; + * otherwise the applicable constraints MUST be stated in + * the appropriate conceptual row DESCRIPTION clauses, or + * in the surrounding documentation if there is no single + * DESCRIPTION clause that is appropriate." + * SYNTAX OCTET STRING (SIZE (0..255)) + ************************************************************** + * TODO: FIXME!!! syrinx: Since we do not support checking the + * consistency of a varbinding based on the value of a previous + * one, try to guess the type of address based on the + * OctetString SIZE - 4 for IPv4, 16 for IPv6, others currently + * not supported. + */ +static char * +snmp_oct2inetaddr(uint32_t len, char *octets, char *buf) +{ + int af; + void *ip; + struct in_addr ipv4; + struct in6_addr ipv6; + + if (len > MAX_OCTSTRING_LEN || octets == NULL || buf == NULL) + return (NULL); + + switch (len) { + /* XXX: FIXME - IPv4*/ + case 4: + memcpy(&ipv4.s_addr, octets, sizeof(ipv4.s_addr)); + af = AF_INET; + ip = &ipv4; + break; + + /* XXX: FIXME - IPv4*/ + case 16: + memcpy(ipv6.s6_addr, octets, sizeof(ipv6.s6_addr)); + af = AF_INET6; + ip = &ipv6; + break; + + default: + return (NULL); + } + + if (inet_ntop(af, ip, buf, SNMP_INADDRS_STRSZ) == NULL) { + warnx("inet_ntop failed - %s", strerror(errno)); + return (NULL); + } + + return (buf); +} + +static char * +snmp_inetaddr2oct(char *str, struct asn_oid *oid) +{ + return (NULL); +} + +static int32_t +parse_inetaddr(struct snmp_value *value, char *string) +{ + return (-1); +} + +/************************************************************** + * SNMP BITS type - XXX: FIXME + **************************************************************/ +static char * +snmp_oct2bits(uint32_t len, char *octets, char *buf) +{ + int i, bits; + uint64_t value; + + if (len > sizeof(value) || octets == NULL || buf == NULL) + return (NULL); + + for (i = len, value = 0, bits = 0; i > 0; i--, bits += 8) + value += octets[i] << bits; + + buf[0]= '\0'; + sprintf(buf, "0x%llx.",(long long unsigned) value); + + return (buf); +} + +static char * +snmp_bits2oct(char *str, struct asn_oid *oid) +{ + char *endptr; + int i, size, bits, saved_errno; + uint64_t v, mask = 0xFF00000000000000; + + saved_errno = errno; + errno = 0; + + v = strtoull(str, &endptr, 16); + if (errno != 0) { + warnx("Bad BITS value %s - %s", str, strerror(errno)); + errno = saved_errno; + return (NULL); + } + + bits = 8; + /* Determine length - up to 8 octets supported so far. */ + for (size = sizeof(v); size > 0; size--) { + if ((v & mask) != 0) + break; + mask = mask >> bits; + } + + if (size == 0) + size = 1; + + if (snmp_suboid_append(oid, (asn_subid_t) size) < 0) + return (NULL); + + for (i = 0, bits = 0; i < size; i++, bits += 8) + if (snmp_suboid_append(oid, + (asn_subid_t)((v & mask) >> bits)) < 0) + return (NULL); + + return (endptr); +} + +static int32_t +parse_bits(struct snmp_value *value, char *string) +{ + char *endptr; + int i, size, bits, saved_errno; + uint64_t v, mask = 0xFF00000000000000; + + saved_errno = errno; + errno = 0; + + v = strtoull(string, &endptr, 16); + + if (errno != 0) { + warnx("Bad BITS value %s - %s", string, strerror(errno)); + errno = saved_errno; + return (-1); + } + + bits = 8; + /* Determine length - up to 8 octets supported so far. */ + for (size = sizeof(v); size > 0; size--) { + if ((v & mask) != 0) + break; + mask = mask >> bits; + } + + if (size == 0) + size = 1; + + if ((value->v.octetstring.octets = malloc(size)) == NULL) { + syslog(LOG_ERR, "malloc failed: %s", strerror(errno)); + return (-1); + } + + value->v.octetstring.len = size; + for (i = 0, bits = 0; i < size; i++, bits += 8) + value->v.octetstring.octets[i] = (v & mask) >> bits; + value->syntax = SNMP_SYNTAX_OCTETSTRING; + return (1); +} diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.h b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.h new file mode 100644 index 000000000000..fd066762ad7d --- /dev/null +++ b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptc.h @@ -0,0 +1,95 @@ +/*- + * Copyright (c) 2006 The FreeBSD Project + * All rights reserved. + * + * Author: Shteryana Shopova + * + * Redistribution of this software and documentation and use in source and + * binary forms, with or without modification, are permitted provided that + * the following conditions are met: + * + * 1. Redistributions of source code or documentation must retain the above + * copyright notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Textual conventions for snmp + * + * $FreeBSD$ + */ + +#ifndef _BSNMP_TEXT_CONV_H_ +#define _BSNMP_TEXT_CONV_H_ + +/* Variable display length string. */ +#define SNMP_VAR_STRSZ -1 + +/* + * 11 bytes - octets that represent DateAndTime Textual convention + * and the size of string used to diplay that. + */ +#define SNMP_DATETIME_OCTETS 11 +#define SNMP_DATETIME_STRSZ 32 + +/* + * 6 bytes - octets that represent PhysAddress Textual convention + * and the size of string used to diplay that. + */ +#define SNMP_PHYSADDR_OCTETS 6 +#define SNMP_PHYSADDR_STRSZ 19 + +/* NTPTimeStamp. */ +#define SNMP_NTP_TS_OCTETS 8 +#define SNMP_NTP_TS_STRSZ 10 + +/* BridgeId. */ +#define SNMP_BRIDGEID_OCTETS 8 +#define SNMP_BRIDGEID_STRSZ 25 +#define SNMP_MAX_BRIDGE_PRIORITY 65535 + +/* BridgePortId. */ +#define SNMP_BPORT_OCTETS 2 +#define SNMP_BPORT_STRSZ 7 +#define SNMP_MAX_BPORT_PRIORITY 255 + +/* InetAddress. */ +#define SNMP_INADDRS_STRSZ INET6_ADDRSTRLEN + +enum snmp_tc { + SNMP_STRING = 0, + SNMP_DISPLAYSTRING = 1, + SNMP_DATEANDTIME = 2, + SNMP_PHYSADDR = 3, + SNMP_ATMESI = 4, + SNMP_NTP_TIMESTAMP = 5, + SNMP_MACADDRESS = 6, + SNMP_BRIDGE_ID = 7, + SNMP_BPORT_ID = 8, + SNMP_INETADDRESS = 9, + SNMP_TC_OWN = 10, + SNMP_UNKNOWN, /* keep last */ +}; + +typedef char * (*snmp_oct2tc_f) (uint32_t len, char *octs, char *buf); +typedef char * (*snmp_tc2oid_f) (char *str, struct asn_oid *oid); +typedef int32_t (*snmp_tc2oct_f) (struct snmp_value *value, char *string); + +enum snmp_tc snmp_get_tc(char *str); +char *snmp_oct2tc(enum snmp_tc tc, uint32_t len, char *octets); +char *snmp_tc2oid(enum snmp_tc tc, char *str, struct asn_oid *oid); +int32_t snmp_tc2oct(enum snmp_tc tc, struct snmp_value *value, char *string); + +#endif /* _BSNMP_TEXT_CONV_H_ */ diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.c b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.c new file mode 100755 index 000000000000..dbaac5b93add --- /dev/null +++ b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.c @@ -0,0 +1,2121 @@ +/*- + * Copyright (c) 2005-2006 The FreeBSD Project + * All rights reserved. + * + * Author: Shteryana Shopova + * + * Redistribution of this software and documentation and use in source and + * binary forms, with or without modification, are permitted provided that + * the following conditions are met: + * + * 1. Redistributions of source code or documentation must retain the above + * copyright notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Helper functions for snmp client tools + * + * $FreeBSD$ + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include "bsnmptc.h" +#include "bsnmptools.h" + +/* Internal varibale to turn on library debugging for testing and to + * find bugs. It is not exported via the header file. + * XXX should we cover it by some #ifdef BSNMPTOOLS_DEBUG? */ +int _bsnmptools_debug = 0; + +/* Default files to import mapping from if none explicitly provided. */ +#define bsnmpd_defs "/usr/share/snmp/defs/tree.def" +#define mibII_defs "/usr/share/snmp/defs/mibII_tree.def" + +/* + * The .iso.org.dod oid that has to be prepended to every OID when requesting + * a value. + */ +const struct asn_oid IsoOrgDod_OID = { + 3, { 1, 3, 6 } +}; + + +#define SNMP_ERR_UNKNOWN 0 + +/* + * An array of error strings corresponding to error definitions from libbsnmp. + */ +static const struct { + const char *str; + int32_t error; +} error_strings[] = { + { "Unknown", SNMP_ERR_UNKNOWN }, + { "Too big ", SNMP_ERR_TOOBIG }, + { "No such Name", SNMP_ERR_NOSUCHNAME }, + { "Bad Value", SNMP_ERR_BADVALUE }, + { "Readonly", SNMP_ERR_READONLY }, + { "General error", SNMP_ERR_GENERR }, + { "No access", SNMP_ERR_NO_ACCESS }, + { "Wrong type", SNMP_ERR_WRONG_TYPE }, + { "Wrong lenght", SNMP_ERR_WRONG_LENGTH }, + { "Wrong encoding", SNMP_ERR_WRONG_ENCODING }, + { "Wrong value", SNMP_ERR_WRONG_VALUE }, + { "No creation", SNMP_ERR_NO_CREATION }, + { "Inconsistent value", SNMP_ERR_INCONS_VALUE }, + { "Resource unavailable", SNMP_ERR_RES_UNAVAIL }, + { "Commit failed", SNMP_ERR_COMMIT_FAILED }, + { "Undo failed", SNMP_ERR_UNDO_FAILED }, + { "Authorization error", SNMP_ERR_AUTH_ERR }, + { "Not writable", SNMP_ERR_NOT_WRITEABLE }, + { "Inconsistent name", SNMP_ERR_INCONS_NAME }, + { NULL, 0 } +}; + +/* This one and any following are exceptions. */ +#define SNMP_SYNTAX_UNKNOWN SNMP_SYNTAX_NOSUCHOBJECT + +static const struct { + const char *str; + enum snmp_syntax stx; +} syntax_strings[] = { + { "Null", SNMP_SYNTAX_NULL }, + { "Integer", SNMP_SYNTAX_INTEGER }, + { "OctetString", SNMP_SYNTAX_OCTETSTRING }, + { "OID", SNMP_SYNTAX_OID }, + { "IpAddress", SNMP_SYNTAX_IPADDRESS }, + { "Counter32", SNMP_SYNTAX_COUNTER }, + { "Gauge", SNMP_SYNTAX_GAUGE }, + { "TimeTicks", SNMP_SYNTAX_TIMETICKS }, + { "Counter64", SNMP_SYNTAX_COUNTER64 }, + { "Unknown", SNMP_SYNTAX_UNKNOWN }, +}; + +int +snmptool_init(struct snmp_toolinfo *snmptoolctx) +{ + char *str; + size_t slen; + + memset(snmptoolctx, 0, sizeof(struct snmp_toolinfo)); + snmptoolctx->objects = 0; + snmptoolctx->mappings = NULL; + snmptoolctx->flags = SNMP_PDU_GET; /* XXX */ + SLIST_INIT(&snmptoolctx->filelist); + snmp_client_init(&snmp_client); + + if (add_filename(snmptoolctx, bsnmpd_defs, &IsoOrgDod_OID, 0) < 0) + warnx("Error adding file %s to list", bsnmpd_defs); + + if (add_filename(snmptoolctx, mibII_defs, &IsoOrgDod_OID, 0) < 0) + warnx("Error adding file %s to list", mibII_defs); + + /* Read the environment */ + if ((str = getenv("SNMPAUTH")) != NULL) { + slen = strlen(str); + if (slen == strlen("md5") && strcasecmp(str, "md5") == 0) + snmp_client.user.auth_proto = SNMP_AUTH_HMAC_MD5; + else if (slen == strlen("sha")&& strcasecmp(str, "sha") == 0) + snmp_client.user.auth_proto = SNMP_AUTH_HMAC_SHA; + else if (slen != 0) + warnx("Bad authentication type - %s in SNMPAUTH", str); + } + + if ((str = getenv("SNMPPRIV")) != NULL) { + slen = strlen(str); + if (slen == strlen("des") && strcasecmp(str, "des") == 0) + snmp_client.user.priv_proto = SNMP_PRIV_DES; + else if (slen == strlen("aes")&& strcasecmp(str, "aes") == 0) + snmp_client.user.priv_proto = SNMP_PRIV_AES; + else if (slen != 0) + warnx("Bad privacy type - %s in SNMPPRIV", str); + } + + if ((str = getenv("SNMPUSER")) != NULL) { + if ((slen = strlen(str)) > sizeof(snmp_client.user.sec_name)) { + warnx("Username too long - %s in SNMPUSER", str); + return (-1); + } + if (slen > 0) { + strlcpy(snmp_client.user.sec_name, str, + sizeof(snmp_client.user.sec_name)); + snmp_client.version = SNMP_V3; + } + } + + if ((str = getenv("SNMPPASSWD")) != NULL) { + if ((slen = strlen(str)) > MAXSTR) + slen = MAXSTR - 1; + if ((snmptoolctx->passwd = malloc(slen + 1)) == NULL) { + warnx("malloc() failed - %s", strerror(errno)); + return (-1); + } + if (slen > 0) + strlcpy(snmptoolctx->passwd, str, slen + 1); + } + + return (0); +} + +#define OBJECT_IDX_LIST(o) o->info->table_idx->index_list + +/* + * Walk through the file list and import string<->oid mappings from each file. + */ +int32_t +snmp_import_all(struct snmp_toolinfo *snmptoolctx) +{ + int32_t fc; + struct fname *tmp; + + if (snmptoolctx == NULL) + return (-1); + + if (ISSET_NUMERIC(snmptoolctx)) + return (0); + + if ((snmptoolctx->mappings = snmp_mapping_init()) == NULL) + return (-1); + + fc = 0; + if (SLIST_EMPTY(&snmptoolctx->filelist)) { + warnx("No files to read OID <-> string conversions from"); + return (-1); + } else { + SLIST_FOREACH(tmp, &snmptoolctx->filelist, link) { + if (tmp->done) + continue; + if (snmp_import_file(snmptoolctx, tmp) < 0) { + fc = -1; + break; + } + fc++; + } + } + + snmp_mapping_dump(snmptoolctx); + return (fc); +} + +/* + * Add a filename to the file list - the initail idea of keeping a list with all + * files to read OIDs from was that an application might want to have loaded in + * memory the OIDs from a single file only and when done with them read the OIDs + * from another file. This is not used yet but might be a good idea at some + * point. Size argument is number of bytes in string including trailing '\0', + * not string lenght. + */ +int32_t +add_filename(struct snmp_toolinfo *snmptoolctx, const char *filename, + const struct asn_oid *cut, int32_t done) +{ + char *fstring; + struct fname *entry; + + if (snmptoolctx == NULL) + return (-1); + + /* Make sure file was not in list. */ + SLIST_FOREACH(entry, &snmptoolctx->filelist, link) { + if (strncmp(entry->name, filename, strlen(entry->name)) == 0) + return (0); + } + + if ((fstring = malloc(strlen(filename) + 1)) == NULL) { + warnx("malloc() failed - %s", strerror(errno)); + return (-1); + } + + if ((entry = malloc(sizeof(struct fname))) == NULL) { + warnx("malloc() failed - %s", strerror(errno)); + free(fstring); + return (-1); + } + + memset(entry, 0, sizeof(struct fname)); + + if (cut != NULL) + asn_append_oid(&(entry->cut), cut); + strlcpy(fstring, filename, strlen(filename) + 1); + entry->name = fstring; + entry->done = done; + SLIST_INSERT_HEAD(&snmptoolctx->filelist, entry, link); + + return (1); +} + +void +free_filelist(struct snmp_toolinfo *snmptoolctx) +{ + struct fname *f; + + if (snmptoolctx == NULL) + return; /* XXX error handling */ + + while ((f = SLIST_FIRST(&snmptoolctx->filelist)) != NULL) { + SLIST_REMOVE_HEAD(&snmptoolctx->filelist, link); + if (f->name) + free(f->name); + free(f); + } +} + +static char +isvalid_fchar(char c, int pos) +{ + if (isalpha(c)|| c == '/'|| c == '_' || c == '.' || c == '~' || + (pos != 0 && isdigit(c))){ + return (c); + } + + if (c == '\0') + return (0); + + if (!isascii(c) || !isprint(c)) + warnx("Unexpected character %#2x", (u_int) c); + else + warnx("Illegal character '%c'", c); + + return (-1); +} + +/* + * Re-implement getsubopt from scratch, because the second argument is broken + * and will not compile with WARNS=5. + * Copied from src/contrib/bsnmp/snmpd/main.c. + */ +static int +getsubopt1(char **arg, const char *const *options, char **valp, char **optp) +{ + static const char *const delim = ",\t "; + u_int i; + char *ptr; + + *optp = NULL; + + /* Skip leading junk. */ + for (ptr = *arg; *ptr != '\0'; ptr++) + if (strchr(delim, *ptr) == NULL) + break; + if (*ptr == '\0') { + *arg = ptr; + return (-1); + } + *optp = ptr; + + /* Find the end of the option. */ + while (*++ptr != '\0') + if (strchr(delim, *ptr) != NULL || *ptr == '=') + break; + + if (*ptr != '\0') { + if (*ptr == '=') { + *ptr++ = '\0'; + *valp = ptr; + while (*ptr != '\0' && strchr(delim, *ptr) == NULL) + ptr++; + if (*ptr != '\0') + *ptr++ = '\0'; + } else + *ptr++ = '\0'; + } + + *arg = ptr; + + for (i = 0; *options != NULL; options++, i++) + if (strcmp(*optp, *options) == 0) + return (i); + return (-1); +} + +static int32_t +parse_path(char *value) +{ + int32_t i, len; + + if (value == NULL) + return (-1); + + for (len = 0; len < MAXPATHLEN; len++) { + i = isvalid_fchar(*(value + len), len) ; + + if (i == 0) + break; + else if (i < 0) + return (-1); + } + + if (len >= MAXPATHLEN || value[len] != '\0') { + warnx("Bad pathname - '%s'", value); + return (-1); + } + + return (len); +} + +static int32_t +parse_flist(struct snmp_toolinfo *snmptoolctx, char *value, char *path, + const struct asn_oid *cut) +{ + int32_t namelen; + char filename[MAXPATHLEN + 1]; + + if (value == NULL) + return (-1); + + do { + memset(filename, 0, MAXPATHLEN + 1); + + if (isalpha(*value) && (path == NULL || path[0] == '\0')) { + strlcpy(filename, SNMP_DEFS_DIR, MAXPATHLEN + 1); + namelen = strlen(SNMP_DEFS_DIR); + } else if (path != NULL){ + strlcpy(filename, path, MAXPATHLEN + 1); + namelen = strlen(path); + } else + namelen = 0; + + for ( ; namelen < MAXPATHLEN; value++) { + if (isvalid_fchar(*value, namelen) > 0) { + filename[namelen++] = *value; + continue; + } + + if (*value == ',' ) + value++; + else if (*value == '\0') + ; + else { + if (!isascii(*value) || !isprint(*value)) + warnx("Unexpected character %#2x in" + " filename", (u_int) *value); + else + warnx("Illegal character '%c' in" + " filename", *value); + return (-1); + } + + filename[namelen]='\0'; + break; + } + + if ((namelen == MAXPATHLEN) && (filename[MAXPATHLEN] != '\0')) { + warnx("Filename %s too long", filename); + return (-1); + } + + if (add_filename(snmptoolctx, filename, cut, 0) < 0) { + warnx("Error adding file %s to list", filename); + return (-1); + } + } while (*value != '\0'); + + return(1); +} + +static int32_t +parse_ascii(char *ascii, uint8_t *binstr, size_t binlen) +{ + int32_t alen, count, saved_errno, i; + uint32_t val; + char dptr[3]; + + /* Filter 0x at the beggining */ + if ((alen = strlen(ascii)) > 2 && ascii[0] == '0' && ascii[1] == 'x') + i = 2; + else + i = 0; + + saved_errno = errno; + errno = 0; + for (count = 0; i < alen; i += 2) { + /* XXX: consider strlen(ascii) % 2 != 0 */ + dptr[0] = ascii[i]; + dptr[1] = ascii[i + 1]; + dptr[2] = '\0'; + if ((val = strtoul(dptr, NULL, 16)) > 0xFF || errno != 0) { + errno = saved_errno; + return (-1); + } + binstr[count] = (uint8_t) val; + if (++count >= binlen) { + warnx("Key %s too long - truncating to %zu octest", + ascii, binlen); + break; + } + } + + return (count); +} + +/* + * Functions to parse common input options for client tools and fill in the + * snmp_client structure. + */ +int32_t +parse_authentication(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + int32_t count, subopt; + char *val, *option; + const char *const subopts[] = { + "proto", + "key", + NULL + }; + + assert(opt_arg != NULL); + count = 1; + while ((subopt = getsubopt1(&opt_arg, subopts, &val, &option)) != EOF) { + switch (subopt) { + case 0: + if (val == NULL) { + warnx("Suboption 'proto' requires an argument"); + return (-1); + } + if (strlen(val) != 3) { + warnx("Unknown auth protocol - %s", val); + return (-1); + } + if (strncasecmp("md5", val, strlen("md5")) == 0) + snmp_client.user.auth_proto = + SNMP_AUTH_HMAC_MD5; + else if (strncasecmp("sha", val, strlen("sha")) == 0) + snmp_client.user.auth_proto = + SNMP_AUTH_HMAC_SHA; + else { + warnx("Unknown auth protocol - %s", val); + return (-1); + } + break; + case 1: + if (val == NULL) { + warnx("Suboption 'key' requires an argument"); + return (-1); + } + if (parse_ascii(val, snmp_client.user.auth_key, + SNMP_AUTH_KEY_SIZ) < 0) { + warnx("Bad authentication key- %s", val); + return (-1); + } + break; + default: + warnx("Unknown suboption - '%s'", suboptarg); + return (-1); + } + count += 1; + } + return (2/* count */); +} + +int32_t +parse_privacy(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + int32_t count, subopt; + char *val, *option; + const char *const subopts[] = { + "proto", + "key", + NULL + }; + + assert(opt_arg != NULL); + count = 1; + while ((subopt = getsubopt1(&opt_arg, subopts, &val, &option)) != EOF) { + switch (subopt) { + case 0: + if (val == NULL) { + warnx("Suboption 'proto' requires an argument"); + return (-1); + } + if (strlen(val) != 3) { + warnx("Unknown privacy protocol - %s", val); + return (-1); + } + if (strncasecmp("aes", val, strlen("aes")) == 0) + snmp_client.user.priv_proto = SNMP_PRIV_AES; + else if (strncasecmp("des", val, strlen("des")) == 0) + snmp_client.user.priv_proto = SNMP_PRIV_DES; + else { + warnx("Unknown privacy protocol - %s", val); + return (-1); + } + break; + case 1: + if (val == NULL) { + warnx("Suboption 'key' requires an argument"); + return (-1); + } + if (parse_ascii(val, snmp_client.user.priv_key, + SNMP_PRIV_KEY_SIZ) < 0) { + warnx("Bad privacy key- %s", val); + return (-1); + } + break; + default: + warnx("Unknown suboption - '%s'", suboptarg); + return (-1); + } + count += 1; + } + return (2/* count */); +} + +int32_t +parse_context(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + int32_t count, subopt; + char *val, *option; + const char *const subopts[] = { + "context", + "context-engine", + NULL + }; + + assert(opt_arg != NULL); + count = 1; + while ((subopt = getsubopt1(&opt_arg, subopts, &val, &option)) != EOF) { + switch (subopt) { + case 0: + if (val == NULL) { + warnx("Suboption 'context' - no argument"); + return (-1); + } + strlcpy(snmp_client.cname, val, SNMP_CONTEXT_NAME_SIZ); + break; + case 1: + if (val == NULL) { + warnx("Suboption 'context-engine' - no argument"); + return (-1); + } + if ((snmp_client.clen = parse_ascii(val, + snmp_client.cengine, SNMP_ENGINE_ID_SIZ)) < 0) { + warnx("Bad EngineID - %s", val); + return (-1); + } + break; + default: + warnx("Unknown suboption - '%s'", suboptarg); + return (-1); + } + count += 1; + } + return (2/* count */); +} + +int32_t +parse_user_security(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + int32_t count, subopt, saved_errno; + char *val, *option; + const char *const subopts[] = { + "engine", + "engine-boots", + "engine-time", + "name", + NULL + }; + + assert(opt_arg != NULL); + count = 1; + while ((subopt = getsubopt1(&opt_arg, subopts, &val, &option)) != EOF) { + switch (subopt) { + case 0: + if (val == NULL) { + warnx("Suboption 'engine' - no argument"); + return (-1); + } + snmp_client.engine.engine_len = parse_ascii(val, + snmp_client.engine.engine_id, SNMP_ENGINE_ID_SIZ); + if (snmp_client.engine.engine_len < 0) { + warnx("Bad EngineID - %s", val); + return (-1); + } + break; + case 1: + if (val == NULL) { + warnx("Suboption 'engine-boots' - no argument"); + return (-1); + } + saved_errno = errno; + errno = 0; + snmp_client.engine.engine_boots = strtoul(val, NULL, 10); + if (errno != 0) { + warnx("Bad 'engine-boots' value %s - %s", val, + strerror(errno)); + errno = saved_errno; + return (-1); + } + errno = saved_errno; + break; + case 2: + if (val == NULL) { + warnx("Suboption 'engine-time' - no argument"); + return (-1); + } + saved_errno = errno; + errno = 0; + snmp_client.engine.engine_time = strtoul(val, NULL, 10); + if (errno != 0) { + warnx("Bad 'engine-time' value %s - %s", val, + strerror(errno)); + errno = saved_errno; + return (-1); + } + errno = saved_errno; + break; + case 3: + strlcpy(snmp_client.user.sec_name, val, + SNMP_ADM_STR32_SIZ); + break; + default: + warnx("Unknown suboption - '%s'", suboptarg); + return (-1); + } + count += 1; + } + return (2/* count */); +} + +int32_t +parse_file(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + assert(opt_arg != NULL); + + if (parse_flist(snmptoolctx, opt_arg, NULL, &IsoOrgDod_OID) < 0) + return (-1); + + return (2); +} + +int32_t +parse_include(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + char path[MAXPATHLEN + 1]; + int32_t cut_dflt, len, subopt; + struct asn_oid cut; + char *val, *option; + const char *const subopts[] = { + "cut", + "path", + "file", + NULL + }; + +#define INC_CUT 0 +#define INC_PATH 1 +#define INC_LIST 2 + + assert(opt_arg != NULL); + + /* if (opt == 'i') + free_filelist(snmptoolctx, ); */ + /* + * This function should be called only after getopt(3) - otherwise if + * no previous validation of opt_arg strlen() may not return what is + * expected. + */ + + path[0] = '\0'; + memset(&cut, 0, sizeof(struct asn_oid)); + cut_dflt = -1; + + while ((subopt = getsubopt1(&opt_arg, subopts, &val, &option)) != EOF) { + switch (subopt) { + case INC_CUT: + if (val == NULL) { + warnx("Suboption 'cut' requires an argument"); + return (-1); + } else { + if (snmp_parse_numoid(val, &cut) < 0) + return (-1); + } + cut_dflt = 1; + break; + + case INC_PATH: + if ((len = parse_path(val)) < 0) + return (-1); + strlcpy(path, val, len + 1); + break; + + case INC_LIST: + if (val == NULL) + return (-1); + if (cut_dflt == -1) + len = parse_flist(snmptoolctx, val, path, &IsoOrgDod_OID); + else + len = parse_flist(snmptoolctx, val, path, &cut); + if (len < 0) + return (-1); + break; + + default: + warnx("Unknown suboption - '%s'", suboptarg); + return (-1); + } + } + + /* XXX: Fix me - returning two is wrong here */ + return (2); +} + +int32_t +parse_server(char *opt_arg) +{ + assert(opt_arg != NULL); + + if (snmp_parse_server(&snmp_client, opt_arg) < 0) + return (-1); + + if (snmp_client.trans > SNMP_TRANS_UDP && snmp_client.chost == NULL) { + if ((snmp_client.chost = malloc(strlen(SNMP_DEFAULT_LOCAL + 1))) + == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (-1); + } + strcpy(snmp_client.chost, SNMP_DEFAULT_LOCAL); + } + + return (2); +} + +int32_t +parse_timeout(char *opt_arg) +{ + int32_t v, saved_errno; + + assert(opt_arg != NULL); + + saved_errno = errno; + errno = 0; + + v = strtol(opt_arg, NULL, 10); + if (errno != 0) { + warnx( "Error parsing timeout value - %s", strerror(errno)); + errno = saved_errno; + return (-1); + } + + snmp_client.timeout.tv_sec = v; + errno = saved_errno; + return (2); +} + +int32_t +parse_retry(char *opt_arg) +{ + uint32_t v; + int32_t saved_errno; + + assert(opt_arg != NULL); + + saved_errno = errno; + errno = 0; + + v = strtoul(opt_arg, NULL, 10); + if (errno != 0) { + warnx("Error parsing retries count - %s", strerror(errno)); + errno = saved_errno; + return (-1); + } + + snmp_client.retries = v; + errno = saved_errno; + return (2); +} + +int32_t +parse_version(char *opt_arg) +{ + uint32_t v; + int32_t saved_errno; + + assert(opt_arg != NULL); + + saved_errno = errno; + errno = 0; + + v = strtoul(opt_arg, NULL, 10); + if (errno != 0) { + warnx("Error parsing version - %s", strerror(errno)); + errno = saved_errno; + return (-1); + } + + switch (v) { + case 1: + snmp_client.version = SNMP_V1; + break; + case 2: + snmp_client.version = SNMP_V2c; + break; + case 3: + snmp_client.version = SNMP_V3; + break; + default: + warnx("Unsupported SNMP version - %u", v); + errno = saved_errno; + return (-1); + } + + errno = saved_errno; + return (2); +} + +int32_t +parse_local_path(char *opt_arg) +{ + assert(opt_arg != NULL); + + if (sizeof(opt_arg) > sizeof(SNMP_LOCAL_PATH)) { + warnx("Filename too long - %s", opt_arg); + return (-1); + } + + strlcpy(snmp_client.local_path, opt_arg, sizeof(SNMP_LOCAL_PATH)); + return (2); +} + +int32_t +parse_buflen(char *opt_arg) +{ + uint32_t size; + int32_t saved_errno; + + assert(opt_arg != NULL); + + saved_errno = errno; + errno = 0; + + size = strtoul(opt_arg, NULL, 10); + if (errno != 0) { + warnx("Error parsing buffer size - %s", strerror(errno)); + errno = saved_errno; + return (-1); + } + + if (size > MAX_BUFF_SIZE) { + warnx("Buffer size too big - %d max allowed", MAX_BUFF_SIZE); + errno = saved_errno; + return (-1); + } + + snmp_client.txbuflen = snmp_client.rxbuflen = size; + errno = saved_errno; + return (2); +} + +int32_t +parse_debug(void) +{ + snmp_client.dump_pdus = 1; + return (1); +} + +int32_t +parse_discovery(struct snmp_toolinfo *snmptoolctx) +{ + SET_EDISCOVER(snmptoolctx); + snmp_client.version = SNMP_V3; + return (1); +} + +int32_t +parse_local_key(struct snmp_toolinfo *snmptoolctx) +{ + SET_LOCALKEY(snmptoolctx); + snmp_client.version = SNMP_V3; + return (1); +} + +int32_t +parse_num_oids(struct snmp_toolinfo *snmptoolctx) +{ + SET_NUMERIC(snmptoolctx); + return (1); +} + +int32_t +parse_output(struct snmp_toolinfo *snmptoolctx, char *opt_arg) +{ + assert(opt_arg != NULL); + + if (strlen(opt_arg) > strlen("verbose")) { + warnx( "Invalid output option - %s",opt_arg); + return (-1); + } + + if (strncasecmp(opt_arg, "short", strlen(opt_arg)) == 0) + SET_OUTPUT(snmptoolctx, OUTPUT_SHORT); + else if (strncasecmp(opt_arg, "verbose", strlen(opt_arg)) == 0) + SET_OUTPUT(snmptoolctx, OUTPUT_VERBOSE); + else if (strncasecmp(opt_arg,"tabular", strlen(opt_arg)) == 0) + SET_OUTPUT(snmptoolctx, OUTPUT_TABULAR); + else if (strncasecmp(opt_arg, "quiet", strlen(opt_arg)) == 0) + SET_OUTPUT(snmptoolctx, OUTPUT_QUIET); + else { + warnx( "Invalid output option - %s", opt_arg); + return (-1); + } + + return (2); +} + +int32_t +parse_errors(struct snmp_toolinfo *snmptoolctx) +{ + SET_RETRY(snmptoolctx); + return (1); +} + +int32_t +parse_skip_access(struct snmp_toolinfo *snmptoolctx) +{ + SET_ERRIGNORE(snmptoolctx); + return (1); +} + +char * +snmp_parse_suboid(char *str, struct asn_oid *oid) +{ + char *endptr; + asn_subid_t suboid; + + if (*str == '.') + str++; + + if (*str < '0' || *str > '9') + return (str); + + do { + suboid = strtoul(str, &endptr, 10); + if ((asn_subid_t) suboid > ASN_MAXID) { + warnx("Suboid %u > ASN_MAXID", suboid); + return (NULL); + } + if (snmp_suboid_append(oid, suboid) < 0) + return (NULL); + str = endptr + 1; + } while (*endptr == '.'); + + return (endptr); +} + +static char * +snmp_int2asn_oid(char *str, struct asn_oid *oid) +{ + char *endptr; + int32_t v, saved_errno; + + saved_errno = errno; + errno = 0; + + v = strtol(str, &endptr, 10); + if (errno != 0) { + warnx("Integer value %s not supported - %s", str, + strerror(errno)); + errno = saved_errno; + return (NULL); + } + errno = saved_errno; + + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + return (endptr); +} + +/* It is a bit weird to have a table indexed by OID but still... */ +static char * +snmp_oid2asn_oid(struct snmp_toolinfo *snmptoolctx, char *str, + struct asn_oid *oid) +{ + int32_t i; + char string[MAXSTR], *endptr; + struct snmp_object obj; + + for (i = 0; i < MAXSTR; i++) + if (isalpha (*(str + i)) == 0) + break; + + endptr = str + i; + memset(&obj, 0, sizeof(struct snmp_object)); + if (i == 0) { + if ((endptr = snmp_parse_suboid(str, &(obj.val.var))) == NULL) + return (NULL); + if (snmp_suboid_append(oid, (asn_subid_t) obj.val.var.len) < 0) + return (NULL); + } else { + strlcpy(string, str, i + 1); + string[i] = '\0'; + if (snmp_lookup_enumoid(snmptoolctx, &obj, string) < 0) { + warnx("Unknown string - %s",string); + return (NULL); + } + free(string); + } + + asn_append_oid(oid, &(obj.val.var)); + return (endptr); +} + +static char * +snmp_ip2asn_oid(char *str, struct asn_oid *oid) +{ + uint32_t v; + int32_t i; + char *endptr, *ptr; + + ptr = str; + for (i = 0; i < 4; i++) { + v = strtoul(ptr, &endptr, 10); + if (v > 0xff) + return (NULL); + if (*endptr != '.' && strchr("],\0", *endptr) == NULL && i != 3) + return (NULL); + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + ptr = endptr + 1; + } + + return (endptr); +} + +/* 32-bit counter, gauge, timeticks. */ +static char * +snmp_uint2asn_oid(char *str, struct asn_oid *oid) +{ + char *endptr; + uint32_t v; + int32_t saved_errno; + + saved_errno = errno; + errno = 0; + + v = strtoul(str, &endptr, 10); + if (errno != 0) { + warnx("Integer value %s not supported - %s\n", str, + strerror(errno)); + errno = saved_errno; + return (NULL); + } + errno = saved_errno; + if (snmp_suboid_append(oid, (asn_subid_t) v) < 0) + return (NULL); + + return (endptr); +} + +static char * +snmp_cnt64_2asn_oid(char *str, struct asn_oid *oid) +{ + char *endptr; + uint64_t v; + int32_t saved_errno; + + saved_errno = errno; + errno = 0; + + v = strtoull(str, &endptr, 10); + + if (errno != 0) { + warnx("Integer value %s not supported - %s", str, + strerror(errno)); + errno = saved_errno; + return (NULL); + } + errno = saved_errno; + if (snmp_suboid_append(oid, (asn_subid_t) (v & 0xffffffff)) < 0) + return (NULL); + + if (snmp_suboid_append(oid, (asn_subid_t) (v >> 32)) < 0) + return (NULL); + + return (endptr); +} + +enum snmp_syntax +parse_syntax(char *str) +{ + int32_t i; + + for (i = 0; i < SNMP_SYNTAX_UNKNOWN; i++) { + if (strncmp(syntax_strings[i].str, str, + strlen(syntax_strings[i].str)) == 0) + return (syntax_strings[i].stx); + } + + return (SNMP_SYNTAX_NULL); +} + +static char * +snmp_parse_subindex(struct snmp_toolinfo *snmptoolctx, char *str, + struct index *idx, struct snmp_object *object) +{ + char *ptr; + int32_t i; + enum snmp_syntax stx; + char syntax[MAX_CMD_SYNTAX_LEN]; + + ptr = str; + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) { + for (i = 0; i < MAX_CMD_SYNTAX_LEN ; i++) { + if (*(ptr + i) == ':') + break; + } + + if (i >= MAX_CMD_SYNTAX_LEN) { + warnx("Unknown syntax in OID - %s", str); + return (NULL); + } + /* Expect a syntax string here. */ + if ((stx = parse_syntax(str)) <= SNMP_SYNTAX_NULL) { + warnx("Invalid syntax - %s",syntax); + return (NULL); + } + + if (stx != idx->syntax && !ISSET_ERRIGNORE(snmptoolctx)) { + warnx("Syntax mismatch - %d expected, %d given", + idx->syntax, stx); + return (NULL); + } + /* + * That is where the suboid started + the syntax length + one + * character for ':'. + */ + ptr = str + i + 1; + } else + stx = idx->syntax; + + switch (stx) { + case SNMP_SYNTAX_INTEGER: + return (snmp_int2asn_oid(ptr, &(object->val.var))); + case SNMP_SYNTAX_OID: + return (snmp_oid2asn_oid(snmptoolctx, ptr, + &(object->val.var))); + case SNMP_SYNTAX_IPADDRESS: + return (snmp_ip2asn_oid(ptr, &(object->val.var))); + case SNMP_SYNTAX_COUNTER: + /* FALLTHROUGH */ + case SNMP_SYNTAX_GAUGE: + /* FALLTHROUGH */ + case SNMP_SYNTAX_TIMETICKS: + return (snmp_uint2asn_oid(ptr, &(object->val.var))); + case SNMP_SYNTAX_COUNTER64: + return (snmp_cnt64_2asn_oid(ptr, &(object->val.var))); + case SNMP_SYNTAX_OCTETSTRING: + return (snmp_tc2oid(idx->tc, ptr, &(object->val.var))); + default: + /* NOTREACHED */ + break; + } + + return (NULL); +} + +char * +snmp_parse_index(struct snmp_toolinfo *snmptoolctx, char *str, + struct snmp_object *object) +{ + char *ptr; + struct index *temp; + + if (object->info->table_idx == NULL) + return (NULL); + + ptr = NULL; + STAILQ_FOREACH(temp, &(OBJECT_IDX_LIST(object)), link) { + if ((ptr = snmp_parse_subindex(snmptoolctx, str, temp, object)) + == NULL) + return (NULL); + + if (*ptr != ',' && *ptr != ']') + return (NULL); + str = ptr + 1; + } + + if (ptr == NULL || *ptr != ']') { + warnx("Mismatching index - %s", str); + return (NULL); + } + + return (ptr + 1); +} + +/* + * Fill in the struct asn_oid member of snmp_value with suboids from input. + * If an error occurs - print message on stderr and return (-1). + * If all is ok - return the length of the oid. + */ +int32_t +snmp_parse_numoid(char *argv, struct asn_oid *var) +{ + char *endptr, *str; + asn_subid_t suboid; + + str = argv; + + if (*str == '.') + str++; + + do { + if (var->len == ASN_MAXOIDLEN) { + warnx("Oid too long - %u", var->len); + return (-1); + } + + suboid = strtoul(str, &endptr, 10); + if (suboid > ASN_MAXID) { + warnx("Oid too long - %u", var->len); + return (-1); + } + + var->subs[var->len++] = suboid; + str = endptr + 1; + } while ( *endptr == '.'); + + if (*endptr != '\0') { + warnx("Invalid oid string - %s", argv); + return (-1); + } + + return (var->len); +} + +/* Append a length 1 suboid to an asn_oid structure. */ +int32_t +snmp_suboid_append(struct asn_oid *var, asn_subid_t suboid) +{ + if (var == NULL) + return (-1); + + if (var->len >= ASN_MAXOIDLEN) { + warnx("Oid too long - %u", var->len); + return (-1); + } + + var->subs[var->len++] = suboid; + + return (1); +} + +/* Pop the last suboid from an asn_oid structure. */ +int32_t +snmp_suboid_pop(struct asn_oid *var) +{ + asn_subid_t suboid; + + if (var == NULL) + return (-1); + + if (var->len < 1) + return (-1); + + suboid = var->subs[--(var->len)]; + var->subs[var->len] = 0; + + return (suboid); +} + +/* + * Parse the command-line provided string into an OID - alocate memory for a new + * snmp object, fill in its fields and insert it in the object list. A + * (snmp_verify_inoid_f) function must be provided to validate the input string. + */ +int32_t +snmp_object_add(struct snmp_toolinfo *snmptoolctx, snmp_verify_inoid_f func, + char *string) +{ + struct snmp_object *obj; + + if (snmptoolctx == NULL) + return (-1); + + /* XXX-BZ does that chack make sense? */ + if (snmptoolctx->objects >= SNMP_MAX_BINDINGS) { + warnx("Too many bindings in PDU - %u", snmptoolctx->objects + 1); + return (-1); + } + + if ((obj = malloc(sizeof(struct snmp_object))) == NULL) { + syslog(LOG_ERR, "malloc() failed: %s", strerror(errno)); + return (-1); + } + + memset(obj, 0, sizeof(struct snmp_object)); + if (func(snmptoolctx, obj, string) < 0) { + warnx("Invalid OID - %s", string); + free(obj); + return (-1); + } + + snmptoolctx->objects++; + SLIST_INSERT_HEAD(&snmptoolctx->snmp_objectlist, obj, link); + + return (1); +} + +/* Given an OID, find it in the object list and remove it. */ +int32_t +snmp_object_remove(struct snmp_toolinfo *snmptoolctx, struct asn_oid *oid) +{ + struct snmp_object *temp; + + if (SLIST_EMPTY(&snmptoolctx->snmp_objectlist)) { + warnx("Object list already empty"); + return (-1); + } + + + SLIST_FOREACH(temp, &snmptoolctx->snmp_objectlist, link) + if (asn_compare_oid(&(temp->val.var), oid) == 0) + break; + + if (temp == NULL) { + warnx("No such object in list"); + return (-1); + } + + SLIST_REMOVE(&snmptoolctx->snmp_objectlist, temp, snmp_object, link); + if (temp->val.syntax == SNMP_SYNTAX_OCTETSTRING && + temp->val.v.octetstring.octets != NULL) + free(temp->val.v.octetstring.octets); + free(temp); + + return (1); +} + +static void +snmp_object_freeall(struct snmp_toolinfo *snmptoolctx) +{ + struct snmp_object *o; + + while ((o = SLIST_FIRST(&snmptoolctx->snmp_objectlist)) != NULL) { + SLIST_REMOVE_HEAD(&snmptoolctx->snmp_objectlist, link); + + if (o->val.syntax == SNMP_SYNTAX_OCTETSTRING && + o->val.v.octetstring.octets != NULL) + free(o->val.v.octetstring.octets); + free(o); + } +} + +/* Do all possible memory release before exit. */ +void +snmp_tool_freeall(struct snmp_toolinfo *snmptoolctx) +{ + if (snmp_client.chost != NULL) { + free(snmp_client.chost); + snmp_client.chost = NULL; + } + + if (snmp_client.cport != NULL) { + free(snmp_client.cport); + snmp_client.cport = NULL; + } + + snmp_mapping_free(snmptoolctx); + free_filelist(snmptoolctx); + snmp_object_freeall(snmptoolctx); + + if (snmptoolctx->passwd != NULL) { + free(snmptoolctx->passwd); + snmptoolctx->passwd = NULL; + } +} + +/* + * Fill all variables from the object list into a PDU. (snmp_verify_vbind_f) + * function should check whether the variable is consistent in this PDU + * (e.g do not add non-leaf OIDs to a GET PDU, or OIDs with read access only to + * a SET PDU) - might be NULL though. (snmp_add_vbind_f) function is the + * function actually adds the variable to the PDU and must not be NULL. + */ +int32_t +snmp_pdu_add_bindings(struct snmp_toolinfo *snmptoolctx, + snmp_verify_vbind_f vfunc, snmp_add_vbind_f afunc, + struct snmp_pdu *pdu, int32_t maxcount) +{ + int32_t nbindings, abind; + struct snmp_object *obj; + + if (pdu == NULL || afunc == NULL) + return (-1); + + /* Return 0 in case of no more work todo. */ + if (SLIST_EMPTY(&snmptoolctx->snmp_objectlist)) + return (0); + + if (maxcount < 0 || maxcount > SNMP_MAX_BINDINGS) { + warnx("maxcount out of range: <0 || >SNMP_MAX_BINDINGS"); + return (-1); + } + + nbindings = 0; + SLIST_FOREACH(obj, &snmptoolctx->snmp_objectlist, link) { + if ((vfunc != NULL) && (vfunc(snmptoolctx, pdu, obj) < 0)) { + nbindings = -1; + break; + } + if ((abind = afunc(pdu, obj)) < 0) { + nbindings = -1; + break; + } + + if (abind > 0) { + /* Do not put more varbindings than requested. */ + if (++nbindings >= maxcount) + break; + } + } + + return (nbindings); +} + +/* + * Locate an object in the object list and set a corresponding error status. + */ +int32_t +snmp_object_seterror(struct snmp_toolinfo *snmptoolctx, + struct snmp_value *err_value, int32_t error_status) +{ + struct snmp_object *obj; + + if (SLIST_EMPTY(&snmptoolctx->snmp_objectlist) || err_value == NULL) + return (-1); + + SLIST_FOREACH(obj, &snmptoolctx->snmp_objectlist, link) + if (asn_compare_oid(&(err_value->var), &(obj->val.var)) == 0) { + obj->error = error_status; + return (1); + } + + return (0); +} + +/* + * Check a PDU received in responce to a SNMP_PDU_GET/SNMP_PDU_GETBULK request + * but don't compare syntaxes - when sending a request PDU they must be null. + * This is a (almost) complete copy of snmp_pdu_check() - with matching syntaxes + * checks and some other checks skiped. + */ +int32_t +snmp_parse_get_resp(struct snmp_pdu *resp, struct snmp_pdu *req) +{ + uint32_t i; + + for (i = 0; i < req->nbindings; i++) { + if (asn_compare_oid(&req->bindings[i].var, + &resp->bindings[i].var) != 0) { + warnx("Bad OID in response"); + return (-1); + } + + if (snmp_client.version != SNMP_V1 && (resp->bindings[i].syntax + == SNMP_SYNTAX_NOSUCHOBJECT || resp->bindings[i].syntax == + SNMP_SYNTAX_NOSUCHINSTANCE)) + return (0); + } + + return (1); +} + +int32_t +snmp_parse_getbulk_resp(struct snmp_pdu *resp, struct snmp_pdu *req) +{ + int32_t N, R, M, r; + + if (req->error_status > (int32_t) resp->nbindings) { + warnx("Bad number of bindings in response"); + return (-1); + } + + for (N = 0; N < req->error_status; N++) { + if (asn_is_suboid(&req->bindings[N].var, + &resp->bindings[N].var) == 0) + return (0); + if (resp->bindings[N].syntax == SNMP_SYNTAX_ENDOFMIBVIEW) + return (0); + } + + for (R = N , r = N; R < (int32_t) req->nbindings; R++) { + for (M = 0; M < req->error_index && (r + M) < + (int32_t) resp->nbindings; M++) { + if (asn_is_suboid(&req->bindings[R].var, + &resp->bindings[r + M].var) == 0) + return (0); + + if (resp->bindings[r + M].syntax == + SNMP_SYNTAX_ENDOFMIBVIEW) { + M++; + break; + } + } + r += M; + } + + return (0); +} + +int32_t +snmp_parse_getnext_resp(struct snmp_pdu *resp, struct snmp_pdu *req) +{ + uint32_t i; + + for (i = 0; i < req->nbindings; i++) { + if (asn_is_suboid(&req->bindings[i].var, &resp->bindings[i].var) + == 0) + return (0); + + if (resp->version != SNMP_V1 && resp->bindings[i].syntax == + SNMP_SYNTAX_ENDOFMIBVIEW) + return (0); + } + + return (1); +} + +/* + * Should be called to check a responce to get/getnext/getbulk. + */ +int32_t +snmp_parse_resp(struct snmp_pdu *resp, struct snmp_pdu *req) +{ + if (resp == NULL || req == NULL) + return (-2); + + if (resp->version != req->version) { + warnx("Response has wrong version"); + return (-1); + } + + if (resp->error_status == SNMP_ERR_NOSUCHNAME) { + warnx("Error - No Such Name"); + return (0); + } + + if (resp->error_status != SNMP_ERR_NOERROR) { + warnx("Error %d in responce", resp->error_status); + return (-1); + } + + if (resp->nbindings != req->nbindings && req->type != SNMP_PDU_GETBULK){ + warnx("Bad number of bindings in response"); + return (-1); + } + + switch (req->type) { + case SNMP_PDU_GET: + return (snmp_parse_get_resp(resp,req)); + case SNMP_PDU_GETBULK: + return (snmp_parse_getbulk_resp(resp,req)); + case SNMP_PDU_GETNEXT: + return (snmp_parse_getnext_resp(resp,req)); + default: + /* NOTREACHED */ + break; + } + + return (-2); +} + +static void +snmp_output_octetstring(struct snmp_toolinfo *snmptoolctx, enum snmp_tc tc, + uint32_t len, uint8_t *octets) +{ + char *buf; + + if (len == 0 || octets == NULL) + return; + + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", + syntax_strings[SNMP_SYNTAX_OCTETSTRING].str); + + if ((buf = snmp_oct2tc(tc, len, (char *) octets)) != NULL) { + fprintf(stdout, "%s", buf); + free(buf); + } +} + +static void +snmp_output_octetindex(struct snmp_toolinfo *snmptoolctx, enum snmp_tc tc, + struct asn_oid *oid) +{ + uint32_t i; + uint8_t *s; + + if ((s = malloc(oid->subs[0] + 1)) == NULL) + syslog(LOG_ERR, "malloc failed - %s", strerror(errno)); + else { + for (i = 0; i < oid->subs[0]; i++) + s[i] = (u_char) (oid->subs[i + 1]); + + snmp_output_octetstring(snmptoolctx, tc, oid->subs[0], s); + free(s); + } +} + +/* + * Check and output syntax type and value. + */ +static void +snmp_output_oid_value(struct snmp_toolinfo *snmptoolctx, struct asn_oid *oid) +{ + char oid_string[ASN_OIDSTRLEN]; + struct snmp_object obj; + + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", syntax_strings[SNMP_SYNTAX_OID].str); + + if(!ISSET_NUMERIC(snmptoolctx)) { + memset(&obj, 0, sizeof(struct snmp_object)); + asn_append_oid(&(obj.val.var), oid); + + if (snmp_lookup_enumstring(snmptoolctx, &obj) > 0) + fprintf(stdout, "%s" , obj.info->string); + else if (snmp_lookup_oidstring(snmptoolctx, &obj) > 0) + fprintf(stdout, "%s" , obj.info->string); + else if (snmp_lookup_nodestring(snmptoolctx, &obj) > 0) + fprintf(stdout, "%s" , obj.info->string); + else { + (void) asn_oid2str_r(oid, oid_string); + fprintf(stdout, "%s", oid_string); + } + } else { + (void) asn_oid2str_r(oid, oid_string); + fprintf(stdout, "%s", oid_string); + } +} + +static void +snmp_output_int(struct snmp_toolinfo *snmptoolctx, struct enum_pairs *enums, + int32_t int_val) +{ + char *string; + + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", + syntax_strings[SNMP_SYNTAX_INTEGER].str); + + if (enums != NULL && (string = enum_string_lookup(enums, int_val)) + != NULL) + fprintf(stdout, "%s", string); + else + fprintf(stdout, "%d", int_val); +} + +static void +snmp_output_ipaddress(struct snmp_toolinfo *snmptoolctx, uint8_t *ip) +{ + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", + syntax_strings[SNMP_SYNTAX_IPADDRESS].str); + + fprintf(stdout, "%u.%u.%u.%u", ip[0], ip[1], ip[2], ip[3]); +} + +static void +snmp_output_counter(struct snmp_toolinfo *snmptoolctx, uint32_t counter) +{ + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", + syntax_strings[SNMP_SYNTAX_COUNTER].str); + + fprintf(stdout, "%u", counter); +} + +static void +snmp_output_gauge(struct snmp_toolinfo *snmptoolctx, uint32_t gauge) +{ + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", syntax_strings[SNMP_SYNTAX_GAUGE].str); + + fprintf(stdout, "%u", gauge); +} + +static void +snmp_output_ticks(struct snmp_toolinfo *snmptoolctx, uint32_t ticks) +{ + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", + syntax_strings[SNMP_SYNTAX_TIMETICKS].str); + + fprintf(stdout, "%u", ticks); +} + +static void +snmp_output_counter64(struct snmp_toolinfo *snmptoolctx, uint64_t counter64) +{ + if (GET_OUTPUT(snmptoolctx) == OUTPUT_VERBOSE) + fprintf(stdout, "%s : ", + syntax_strings[SNMP_SYNTAX_COUNTER64].str); + + fprintf(stdout,"%ju", counter64); +} + +int32_t +snmp_output_numval(struct snmp_toolinfo *snmptoolctx, struct snmp_value *val, + struct snmp_oid2str *entry) +{ + if (val == NULL) + return (-1); + + if (GET_OUTPUT(snmptoolctx) != OUTPUT_QUIET) + fprintf(stdout, " = "); + + switch (val->syntax) { + case SNMP_SYNTAX_INTEGER: + if (entry != NULL) + snmp_output_int(snmptoolctx, entry->snmp_enum, + val->v.integer); + else + snmp_output_int(snmptoolctx, NULL, val->v.integer); + break; + + case SNMP_SYNTAX_OCTETSTRING: + if (entry != NULL) + snmp_output_octetstring(snmptoolctx, entry->tc, + val->v.octetstring.len, val->v.octetstring.octets); + else + snmp_output_octetstring(snmptoolctx, SNMP_STRING, + val->v.octetstring.len, val->v.octetstring.octets); + break; + + case SNMP_SYNTAX_OID: + snmp_output_oid_value(snmptoolctx, &(val->v.oid)); + break; + + case SNMP_SYNTAX_IPADDRESS: + snmp_output_ipaddress(snmptoolctx, val->v.ipaddress); + break; + + case SNMP_SYNTAX_COUNTER: + snmp_output_counter(snmptoolctx, val->v.uint32); + break; + + case SNMP_SYNTAX_GAUGE: + snmp_output_gauge(snmptoolctx, val->v.uint32); + break; + + case SNMP_SYNTAX_TIMETICKS: + snmp_output_ticks(snmptoolctx, val->v.uint32); + break; + + case SNMP_SYNTAX_COUNTER64: + snmp_output_counter64(snmptoolctx, val->v.counter64); + break; + + case SNMP_SYNTAX_NOSUCHOBJECT: + fprintf(stdout, "No Such Object\n"); + return (val->syntax); + + case SNMP_SYNTAX_NOSUCHINSTANCE: + fprintf(stdout, "No Such Instance\n"); + return (val->syntax); + + case SNMP_SYNTAX_ENDOFMIBVIEW: + fprintf(stdout, "End of Mib View\n"); + return (val->syntax); + + case SNMP_SYNTAX_NULL: + /* NOTREACHED */ + fprintf(stdout, "agent returned NULL Syntax\n"); + return (val->syntax); + + default: + /* NOTREACHED - If here - then all went completely wrong. */ + fprintf(stdout, "agent returned unknown syntax\n"); + return (-1); + } + + fprintf(stdout, "\n"); + + return (0); +} + +static int32_t +snmp_fill_object(struct snmp_toolinfo *snmptoolctx, struct snmp_object *obj, + struct snmp_value *val) +{ + int32_t rc; + asn_subid_t suboid; + + if (obj == NULL || val == NULL) + return (-1); + + if ((suboid = snmp_suboid_pop(&(val->var))) > ASN_MAXID) + return (-1); + + memset(obj, 0, sizeof(struct snmp_object)); + asn_append_oid(&(obj->val.var), &(val->var)); + obj->val.syntax = val->syntax; + + if (obj->val.syntax > 0) + rc = snmp_lookup_leafstring(snmptoolctx, obj); + else + rc = snmp_lookup_nonleaf_string(snmptoolctx, obj); + + (void) snmp_suboid_append(&(val->var), suboid); + (void) snmp_suboid_append(&(obj->val.var), suboid); + + return (rc); +} + +static int32_t +snmp_output_index(struct snmp_toolinfo *snmptoolctx, struct index *stx, + struct asn_oid *oid) +{ + uint8_t ip[4]; + uint32_t bytes = 1; + uint64_t cnt64; + struct asn_oid temp, out; + + if (oid->len < bytes) + return (-1); + + memset(&temp, 0, sizeof(struct asn_oid)); + asn_append_oid(&temp, oid); + + switch (stx->syntax) { + case SNMP_SYNTAX_INTEGER: + snmp_output_int(snmptoolctx, stx->snmp_enum, temp.subs[0]); + break; + + case SNMP_SYNTAX_OCTETSTRING: + if ((temp.subs[0] > temp.len -1 ) || (temp.subs[0] > + ASN_MAXOCTETSTRING)) + return (-1); + snmp_output_octetindex(snmptoolctx, stx->tc, &temp); + bytes += temp.subs[0]; + break; + + case SNMP_SYNTAX_OID: + if ((temp.subs[0] > temp.len -1) || (temp.subs[0] > + ASN_MAXOIDLEN)) + return (-1); + + bytes += temp.subs[0]; + memset(&out, 0, sizeof(struct asn_oid)); + asn_slice_oid(&out, &temp, 1, bytes); + snmp_output_oid_value(snmptoolctx, &out); + break; + + case SNMP_SYNTAX_IPADDRESS: + if (temp.len < 4) + return (-1); + for (bytes = 0; bytes < 4; bytes++) + ip[bytes] = temp.subs[bytes]; + + snmp_output_ipaddress(snmptoolctx, ip); + bytes = 4; + break; + + case SNMP_SYNTAX_COUNTER: + snmp_output_counter(snmptoolctx, temp.subs[0]); + break; + + case SNMP_SYNTAX_GAUGE: + snmp_output_gauge(snmptoolctx, temp.subs[0]); + break; + + case SNMP_SYNTAX_TIMETICKS: + snmp_output_ticks(snmptoolctx, temp.subs[0]); + break; + + case SNMP_SYNTAX_COUNTER64: + if (oid->len < 2) + return (-1); + bytes = 2; + memcpy(&cnt64, temp.subs, bytes); + snmp_output_counter64(snmptoolctx, cnt64); + break; + + default: + return (-1); + } + + return (bytes); +} + +static int32_t +snmp_output_object(struct snmp_toolinfo *snmptoolctx, struct snmp_object *o) +{ + int32_t i, first, len; + struct asn_oid oid; + struct index *temp; + + if (ISSET_NUMERIC(snmptoolctx)) + return (-1); + + if (o->info->table_idx == NULL) { + fprintf(stdout,"%s.%d", o->info->string, + o->val.var.subs[o->val.var.len - 1]); + return (1); + } + + fprintf(stdout,"%s[", o->info->string); + memset(&oid, 0, sizeof(struct asn_oid)); + + len = 1; + asn_slice_oid(&oid, &(o->val.var), (o->info->table_idx->var.len + len), + o->val.var.len); + + first = 1; + STAILQ_FOREACH(temp, &(OBJECT_IDX_LIST(o)), link) { + if(first) + first = 0; + else + fprintf(stdout, ", "); + if ((i = snmp_output_index(snmptoolctx, temp, &oid)) < 0) + break; + len += i; + memset(&oid, 0, sizeof(struct asn_oid)); + asn_slice_oid(&oid, &(o->val.var), + (o->info->table_idx->var.len + len), o->val.var.len + 1); + } + + fprintf(stdout,"]"); + return (1); +} + +void +snmp_output_err_resp(struct snmp_toolinfo *snmptoolctx, struct snmp_pdu *pdu) +{ + char buf[ASN_OIDSTRLEN]; + struct snmp_object object; + + if (pdu == NULL || (pdu->error_index > (int32_t) pdu->nbindings)) { + fprintf(stdout,"Invalid error index in PDU\n"); + return; + } + + fprintf(stdout, "Agent %s:%s returned error \n", snmp_client.chost, + snmp_client.cport); + + if (!ISSET_NUMERIC(snmptoolctx) && (snmp_fill_object(snmptoolctx, &object, + &(pdu->bindings[pdu->error_index - 1])) > 0)) + snmp_output_object(snmptoolctx, &object); + else { + asn_oid2str_r(&(pdu->bindings[pdu->error_index - 1].var), buf); + fprintf(stdout,"%s", buf); + } + + fprintf(stdout," caused error - "); + if ((pdu->error_status > 0) && (pdu->error_status <= + SNMP_ERR_INCONS_NAME)) + fprintf(stdout, "%s\n", error_strings[pdu->error_status].str); + else + fprintf(stdout,"%s\n", error_strings[SNMP_ERR_UNKNOWN].str); +} + +int32_t +snmp_output_resp(struct snmp_toolinfo *snmptoolctx, struct snmp_pdu *pdu) +{ + int32_t error; + char p[ASN_OIDSTRLEN]; + uint32_t i; + struct snmp_object object; + + for (i = 0, error = 0; i < pdu->nbindings; i++) { + if (GET_OUTPUT(snmptoolctx) != OUTPUT_QUIET) { + if (!ISSET_NUMERIC(snmptoolctx) && + (snmp_fill_object(snmptoolctx, &object, + &(pdu->bindings[i])) > 0)) + snmp_output_object(snmptoolctx, &object); + else { + asn_oid2str_r(&(pdu->bindings[i].var), p); + fprintf(stdout, "%s", p); + } + } + error |= snmp_output_numval(snmptoolctx, &(pdu->bindings[i]), object.info); + } + + return (error); +} + +void +snmp_output_engine(void) +{ + uint32_t i; + char *cptr, engine[2 * SNMP_ENGINE_ID_SIZ + 2]; + + cptr = engine; + for (i = 0; i < snmp_client.engine.engine_len; i++) + cptr += sprintf(cptr, "%.2x", snmp_client.engine.engine_id[i]); + *cptr++ = '\0'; + + fprintf(stdout, "Engine ID 0x%s\n", engine); + fprintf(stdout, "Boots : %u\t\tTime : %d\n", + snmp_client.engine.engine_boots, + snmp_client.engine.engine_time); +} + +void +snmp_output_keys(void) +{ + uint32_t i, keylen = 0; + char *cptr, extkey[2 * SNMP_AUTH_KEY_SIZ + 2]; + + fprintf(stdout, "Localized keys for %s\n", snmp_client.user.sec_name); + if (snmp_client.user.auth_proto == SNMP_AUTH_HMAC_MD5) { + fprintf(stdout, "MD5 : 0x"); + keylen = SNMP_AUTH_HMACMD5_KEY_SIZ; + } else if (snmp_client.user.auth_proto == SNMP_AUTH_HMAC_SHA) { + fprintf(stdout, "SHA : 0x"); + keylen = SNMP_AUTH_HMACSHA_KEY_SIZ; + } + if (snmp_client.user.auth_proto != SNMP_AUTH_NOAUTH) { + cptr = extkey; + for (i = 0; i < keylen; i++) + cptr += sprintf(cptr, "%.2x", + snmp_client.user.auth_key[i]); + *cptr++ = '\0'; + fprintf(stdout, "%s\n", extkey); + } + + if (snmp_client.user.priv_proto == SNMP_PRIV_DES) { + fprintf(stdout, "DES : 0x"); + keylen = SNMP_PRIV_DES_KEY_SIZ; + } else if (snmp_client.user.priv_proto == SNMP_PRIV_AES) { + fprintf(stdout, "AES : 0x"); + keylen = SNMP_PRIV_AES_KEY_SIZ; + } + if (snmp_client.user.priv_proto != SNMP_PRIV_NOPRIV) { + cptr = extkey; + for (i = 0; i < keylen; i++) + cptr += sprintf(cptr, "%.2x", + snmp_client.user.priv_key[i]); + *cptr++ = '\0'; + fprintf(stdout, "%s\n", extkey); + } +} diff --git a/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.h b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.h new file mode 100644 index 000000000000..6e621860884e --- /dev/null +++ b/usr.sbin/bsnmpd/tools/libbsnmptools/bsnmptools.h @@ -0,0 +1,331 @@ +/*- + * Copyright (c) 2005-2006 The FreeBSD Project + * All rights reserved. + * + * Author: Shteryana Shopova + * + * Redistribution of this software and documentation and use in source and + * binary forms, with or without modification, are permitted provided that + * the following conditions are met: + * + * 1. Redistributions of source code or documentation must retain the above + * copyright notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Helper functions common for all tools. + * + * $FreeBSD$ + */ + +#ifndef _BSNMP_TOOLS_H_ +#define _BSNMP_TOOLS_H_ + +/* From asn1.h + 1 byte for trailing zero. */ +#define MAX_OCTSTRING_LEN ASN_MAXOCTETSTRING + 1 +#define MAX_CMD_SYNTAX_LEN 12 + +/* Arbitrary upper limit on node names and function names - gensnmptree.c. */ +#define MAXSTR 1000 + +/* Should be enough to fetch the biggest allowed octet string. */ +#define MAX_BUFF_SIZE (ASN_MAXOCTETSTRING + 50) + +#define SNMP_DEFS_DIR "/usr/share/snmp/defs/" +#define SNMP_DEFAULT_LOCAL "/var/run/snmpd.sock" + +enum snmp_access { + SNMP_ACCESS_NONE = 0, + SNMP_ACCESS_GET, + SNMP_ACCESS_SET, + SNMP_ACCESS_GETSET, +}; + +/* A structure for integer-string enumerations. */ +struct enum_pair { + int32_t enum_val; + char *enum_str; + STAILQ_ENTRY(enum_pair) link; +}; + +STAILQ_HEAD(enum_pairs, enum_pair); + +struct enum_type { + char *name; + uint32_t syntax; + int32_t is_enum; + int32_t is_bits; + struct enum_pairs *snmp_enum; + SLIST_ENTRY(enum_type) link; +}; + +SLIST_HEAD(snmp_enum_tc, enum_type); + +struct index { + enum snmp_tc tc; + enum snmp_syntax syntax; + struct enum_pairs *snmp_enum; + STAILQ_ENTRY(index) link; +}; + +STAILQ_HEAD(snmp_idxlist, index); + +struct snmp_index_entry { + char *string; + uint32_t strlen; + struct asn_oid var; + struct snmp_idxlist index_list; + SLIST_ENTRY(snmp_index_entry) link; +}; + +/* Information needed for oid to string conversion. */ +struct snmp_oid2str { + char *string; + uint32_t strlen; + enum snmp_tc tc; + enum snmp_syntax syntax; + enum snmp_access access; + struct asn_oid var; + /* A pointer to a entry from the table list - OK if NULL. */ + struct snmp_index_entry *table_idx; + /* + * A singly-linked tail queue of all (int, string) pairs - + * for INTEGER syntax only. + */ + struct enum_pairs *snmp_enum; + SLIST_ENTRY(snmp_oid2str) link; +}; + +/* A structure to hold each oid input by user. */ +struct snmp_object { + /* Flag - if set, the variable caused error in a previous request. */ + int32_t error; + /* + * A pointer in the mapping lists - not used if OIDs are input as + * numericals. + */ + struct snmp_oid2str *info; + /* A snmp value to hold the actual oid, syntax and value. */ + struct snmp_value val; + SLIST_ENTRY(snmp_object) link; +}; + +struct fname { + char *name; + int32_t done; + struct asn_oid cut; + SLIST_ENTRY(fname) link; +}; + +SLIST_HEAD(snmp_mapping, snmp_oid2str); +SLIST_HEAD(fname_list, fname); +SLIST_HEAD(snmp_table_index, snmp_index_entry); + +/* + * Keep a list for every syntax type. + */ +struct snmp_mappings { + /* The list containing all non-leaf nodes. */ + struct snmp_mapping nodelist; + /* INTEGER/INTEGER32 types. */ + struct snmp_mapping intlist; + /* OCTETSTRING types. */ + struct snmp_mapping octlist; + /* OID types. */ + struct snmp_mapping oidlist; + /* IPADDRESS types. */ + struct snmp_mapping iplist; + /* TIMETICKS types. */ + struct snmp_mapping ticklist; + /* COUNTER types. */ + struct snmp_mapping cntlist; + /* GAUGE types. */ + struct snmp_mapping gaugelist; + /* COUNTER64 types. */ + struct snmp_mapping cnt64list; + /* ENUM values for oid types. */ + struct snmp_mapping enumlist; + /* Description of all table entry types. */ + struct snmp_table_index tablelist; + /* Defined enumerated textual conventions. */ + struct snmp_enum_tc tclist; +}; + +struct snmp_toolinfo { + uint32_t flags; + /* Number of initially input OIDs. */ + int32_t objects; + /* List of all input OIDs. */ + SLIST_HEAD(snmp_objectlist, snmp_object) snmp_objectlist; + /* All known OID to string mapping data. */ + struct snmp_mappings *mappings; + /* A list of .defs filenames to search oid<->string mapping. */ + struct fname_list filelist; + /* SNMPv3 USM user credentials */ + char *passwd; +}; + +/* XXX we might want to get away with this and will need to touch + * XXX the MACROS then too */ +extern struct snmp_toolinfo snmptool; + +/* Definitions for some flags' bits. */ +#define OUTPUT_BITS 0x00000003 /* bits 0-1 for output type */ +#define NUMERIC_BIT 0x00000004 /* bit 2 for numeric oids */ +#define RETRY_BIT 0x00000008 /* bit 3 for retry on error responce */ +#define ERRIGNORE_BIT 0x00000010 /* bit 4 for skip sanity checking */ +#define ERRIGNORE_BIT 0x00000010 /* bit 4 for skip sanity checking */ +#define EDISCOVER_BIT 0x00000020 /* bit 5 for SNMP Engine Discovery */ +#define LOCALKEY_BIT 0x00000040 /* bit 6 for using localized key */ + /* 0x00000080 */ /* bit 7 reserverd */ +#define PDUTYPE_BITS 0x00000f00 /* bits 8-11 for pdu type */ + /* 0x0000f000 */ /* bit 12-15 reserverd */ +#define MAXREP_BITS 0x00ff0000 /* bits 16-23 for max-repetit. value */ +#define NONREP_BITS 0xff000000 /* bits 24-31 for non-repeaters value */ + +#define OUTPUT_SHORT 0x0 +#define OUTPUT_VERBOSE 0x1 +#define OUTPUT_TABULAR 0x2 +#define OUTPUT_QUIET 0x3 + +/* Macros for playing with flags' bits. */ +#define SET_OUTPUT(ctx, type) ((ctx)->flags |= ((type) & OUTPUT_BITS)) +#define GET_OUTPUT(ctx) ((ctx)->flags & OUTPUT_BITS) + +#define SET_NUMERIC(ctx) ((ctx)->flags |= NUMERIC_BIT) +#define ISSET_NUMERIC(ctx) ((ctx)->flags & NUMERIC_BIT) + +#define SET_RETRY(ctx) ((ctx)->flags |= RETRY_BIT) +#define ISSET_RETRY(ctx) ((ctx)->flags & RETRY_BIT) + +#define SET_ERRIGNORE(ctx) ((ctx)->flags |= ERRIGNORE_BIT) +#define ISSET_ERRIGNORE(ctx) ((ctx)->flags & ERRIGNORE_BIT) + +#define SET_EDISCOVER(ctx) ((ctx)->flags |= EDISCOVER_BIT) +#define ISSET_EDISCOVER(ctx) ((ctx)->flags & EDISCOVER_BIT) + +#define SET_LOCALKEY(ctx) ((ctx)->flags |= LOCALKEY_BIT) +#define ISSET_LOCALKEY(ctx) ((ctx)->flags & LOCALKEY_BIT) + +#define SET_PDUTYPE(ctx, type) (((ctx)->flags |= (((type) & 0xf) << 8))) +#define GET_PDUTYPE(ctx) (((ctx)->flags & PDUTYPE_BITS) >> 8) + +#define SET_MAXREP(ctx, i) (((ctx)->flags |= (((i) & 0xff) << 16))) +#define GET_MAXREP(ctx) (((ctx)->flags & MAXREP_BITS) >> 16) + +#define SET_NONREP(ctx, i) (((ctx)->flags |= (((i) & 0xff) << 24))) +#define GET_NONREP(ctx) (((ctx)->flags & NONREP_BITS) >> 24) + + +extern const struct asn_oid IsoOrgDod_OID; + +int snmptool_init(struct snmp_toolinfo *); +int32_t snmp_import_file(struct snmp_toolinfo *, struct fname *); +int32_t snmp_import_all(struct snmp_toolinfo *); +int32_t add_filename(struct snmp_toolinfo *, const char *, + const struct asn_oid *, int32_t); +void free_filelist(struct snmp_toolinfo *); +void snmp_tool_freeall(struct snmp_toolinfo *); +void snmp_import_dump(int); + +/* bsnmpmap.c */ +struct snmp_mappings *snmp_mapping_init(void); +int32_t snmp_mapping_free(struct snmp_toolinfo *); +void snmp_index_listfree(struct snmp_idxlist *); +void snmp_dump_oid2str(struct snmp_oid2str *); +int32_t snmp_node_insert(struct snmp_toolinfo *, struct snmp_oid2str *); +int32_t snmp_leaf_insert(struct snmp_toolinfo *, struct snmp_oid2str *); +int32_t snmp_enum_insert(struct snmp_toolinfo *, struct snmp_oid2str *); +struct enum_pairs *enum_pairs_init(void); +void enum_pairs_free(struct enum_pairs *); +void snmp_mapping_entryfree(struct snmp_oid2str *); +int32_t enum_pair_insert(struct enum_pairs *, int32_t, char *); +char *enum_string_lookup(struct enum_pairs *, int32_t); +int32_t enum_number_lookup(struct enum_pairs *, char *); +int32_t snmp_syntax_insert(struct snmp_idxlist *, struct enum_pairs *, + enum snmp_syntax, enum snmp_tc); +int32_t snmp_table_insert(struct snmp_toolinfo *, struct snmp_index_entry *); + +struct enum_type *snmp_enumtc_init(char *); +void snmp_enumtc_free(struct enum_type *); +void snmp_enumtc_insert(struct snmp_toolinfo *, struct enum_type *); +struct enum_type *snmp_enumtc_lookup(struct snmp_toolinfo *, char *); + +void snmp_mapping_dump(struct snmp_toolinfo *); +int32_t snmp_lookup_leafstring(struct snmp_toolinfo *, struct snmp_object *); +int32_t snmp_lookup_enumstring(struct snmp_toolinfo *, struct snmp_object *); +int32_t snmp_lookup_oidstring(struct snmp_toolinfo *, struct snmp_object *); +int32_t snmp_lookup_nonleaf_string(struct snmp_toolinfo *, struct snmp_object *); +int32_t snmp_lookup_allstring(struct snmp_toolinfo *, struct snmp_object *); +int32_t snmp_lookup_nodestring(struct snmp_toolinfo *, struct snmp_object *); +int32_t snmp_lookup_oidall(struct snmp_toolinfo *, struct snmp_object *, char *); +int32_t snmp_lookup_enumoid(struct snmp_toolinfo *, struct snmp_object *, char *); +int32_t snmp_lookup_oid(struct snmp_toolinfo *, struct snmp_object *, char *); + +/* Functions parsing common options for all tools. */ +int32_t parse_server(char *); +int32_t parse_timeout(char *); +int32_t parse_retry(char *); +int32_t parse_version(char *); +int32_t parse_local_path(char *); +int32_t parse_buflen(char *); +int32_t parse_debug(void); +int32_t parse_discovery(struct snmp_toolinfo *); +int32_t parse_local_key(struct snmp_toolinfo *); +int32_t parse_num_oids(struct snmp_toolinfo *); +int32_t parse_file(struct snmp_toolinfo *, char *); +int32_t parse_include(struct snmp_toolinfo *, char *); +int32_t parse_output(struct snmp_toolinfo *, char *); +int32_t parse_errors(struct snmp_toolinfo *); +int32_t parse_skip_access(struct snmp_toolinfo *); +int32_t parse_authentication(struct snmp_toolinfo *, char *); +int32_t parse_privacy(struct snmp_toolinfo *, char *); +int32_t parse_context(struct snmp_toolinfo *, char *); +int32_t parse_user_security(struct snmp_toolinfo *, char *); + +typedef int32_t (*snmp_verify_inoid_f) (struct snmp_toolinfo *, + struct snmp_object *, char *); +int32_t snmp_object_add(struct snmp_toolinfo *, snmp_verify_inoid_f, char *); +int32_t snmp_object_remove(struct snmp_toolinfo *, struct asn_oid *oid); +int32_t snmp_object_seterror(struct snmp_toolinfo *, struct snmp_value *, + int32_t); + +enum snmp_syntax parse_syntax(char *); +char *snmp_parse_suboid(char *, struct asn_oid *); +char *snmp_parse_index(struct snmp_toolinfo *, char *, struct snmp_object *); +int32_t snmp_parse_numoid(char *, struct asn_oid *); +int32_t snmp_suboid_append(struct asn_oid *, asn_subid_t); +int32_t snmp_suboid_pop(struct asn_oid *); + +typedef int32_t (*snmp_verify_vbind_f) (struct snmp_toolinfo *, + struct snmp_pdu *, struct snmp_object *); +typedef int32_t (*snmp_add_vbind_f) (struct snmp_pdu *, struct snmp_object *); +int32_t snmp_pdu_add_bindings(struct snmp_toolinfo *, snmp_verify_vbind_f, + snmp_add_vbind_f, struct snmp_pdu *, int32_t); + +int32_t snmp_parse_get_resp(struct snmp_pdu *, struct snmp_pdu *); +int32_t snmp_parse_getbulk_resp(struct snmp_pdu *, struct snmp_pdu *); +int32_t snmp_parse_getnext_resp(struct snmp_pdu *, struct snmp_pdu *); +int32_t snmp_parse_resp(struct snmp_pdu *, struct snmp_pdu *); +int32_t snmp_output_numval(struct snmp_toolinfo *, struct snmp_value *, + struct snmp_oid2str *); +void snmp_output_val(struct snmp_value *); +int32_t snmp_output_resp(struct snmp_toolinfo *, struct snmp_pdu *); +void snmp_output_err_resp(struct snmp_toolinfo *, struct snmp_pdu *); +void snmp_output_engine(void); +void snmp_output_keys(void); + +#endif /* _BSNMP_TOOLS_H_ */