feda1a4372
general, when support was added to netstat for fetching data using sysctl, no provision was left for fetching equivalent data from a core dump, and in fact, netstat would _always_ fetch data from the live kernel using sysctl even when -M was specified resulting in the user believing they were getting data from coredumps when they actually weren't. Some specific changes: - Add a global 'live' variable that is true if netstat is running against the live kernel and false if -M has been specified. - Stop abusing the sysctl flag in the protocol tables to hold the protocol number. Instead, the protocol is now its own field in the tables, and it is passed as a separate parameter to the PCB and stat routines rather than overloading the KVM offset parameter. - Don't run PCB or stats functions who don't have a namelist offset if we are being run against a crash dump (!live). - For the inet and unix PCB routines, we generate the same buffer from KVM that the sysctl usually generates complete with the header and trailer. - Don't run bpf stats for !live (before it would just silently always run live). - kread() no longer trashes memory when opening the buffer if there is an error on open and the passed in buffer is smaller than _POSIX2_LINE_MAX. - The multicast routing code doesn't fallback to kvm on live kernels if the sysctl fails. Keeping this made the code rather hairy, and netstat is already tied to the kernel ABI anyway (even when using sysctl's since things like xinpcb contain an inpcb) so any kernels this is run against that have the multicast routing stuff should have the sysctls. - Don't try to dig around in the kernel linker in the netgraph PCB routine for core dumps. Other notes: - sctp's PCB routine only works on live kernels, it looked rather complicated to generate all the same stuff via KVM. Someone can always add it later if desired though. - Fix the ipsec removal bug where N_xxx for IPSEC stats weren't renumbered. - Use sysctlbyname() everywhere rather than hardcoded mib values. MFC after: 1 week Approved by: re (rwatson)
164 lines
6.1 KiB
C
164 lines
6.1 KiB
C
/*
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* Copyright (c) 1992, 1993
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* Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)netstat.h 8.2 (Berkeley) 1/4/94
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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extern int Aflag; /* show addresses of protocol control block */
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extern int aflag; /* show all sockets (including servers) */
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extern int bflag; /* show i/f total bytes in/out */
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extern int dflag; /* show i/f dropped packets */
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extern int gflag; /* show group (multicast) routing or stats */
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extern int hflag; /* show counters in human readable format */
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extern int iflag; /* show interfaces */
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extern int Lflag; /* show size of listen queues */
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extern int mflag; /* show memory stats */
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extern int numeric_addr; /* show addresses numerically */
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extern int numeric_port; /* show ports numerically */
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extern int rflag; /* show routing tables (or routing stats) */
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extern int sflag; /* show protocol statistics */
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extern int tflag; /* show i/f watchdog timers */
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extern int Wflag; /* wide display */
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extern int zflag; /* zero stats */
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extern int interval; /* repeat interval for i/f stats */
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extern char *interface; /* desired i/f for stats, or NULL for all i/fs */
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extern int unit; /* unit number for above */
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extern int af; /* address family */
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extern int live; /* true if we are examining a live system */
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int kread(u_long addr, void *buf, size_t size);
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const char *plural(uintmax_t);
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const char *plurales(uintmax_t);
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const char *pluralies(uintmax_t);
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int sotoxsocket(struct socket *, struct xsocket *);
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void protopr(u_long, const char *, int, int);
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void tcp_stats(u_long, const char *, int, int);
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void udp_stats(u_long, const char *, int, int);
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#ifdef SCTP
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void sctp_protopr(u_long, const char *, int, int);
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void sctp_stats(u_long, const char *, int, int);
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#endif
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void ip_stats(u_long, const char *, int, int);
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void icmp_stats(u_long, const char *, int, int);
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void igmp_stats(u_long, const char *, int, int);
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void pim_stats(u_long, const char *, int, int);
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void carp_stats (u_long, const char *, int, int);
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void pfsync_stats (u_long, const char *, int, int);
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#ifdef IPSEC
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void ipsec_stats(u_long, const char *, int, int);
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void esp_stats (u_long, const char *, int, int);
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void ah_stats (u_long, const char *, int, int);
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void ipcomp_stats (u_long, const char *, int, int);
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#endif
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#ifdef INET6
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void ip6_stats(u_long, const char *, int, int);
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void ip6_ifstats(char *);
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void icmp6_stats(u_long, const char *, int, int);
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void icmp6_ifstats(char *);
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void pim6_stats(u_long, const char *, int, int);
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void rip6_stats(u_long, const char *, int, int);
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void mroute6pr(u_long, u_long);
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void mrt6_stats(u_long);
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struct sockaddr_in6;
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struct in6_addr;
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char *routename6(struct sockaddr_in6 *);
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const char *netname6(struct sockaddr_in6 *, struct in6_addr *);
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void inet6print(struct in6_addr *, int, const char *, int);
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#endif /*INET6*/
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#ifdef IPSEC
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void pfkey_stats(u_long, const char *, int, int);
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#endif
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void mbpr(void *, u_long);
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void hostpr(u_long, u_long);
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void impstats(u_long, u_long);
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void intpr(int, u_long, void (*)(char *));
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void pr_rthdr(int);
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void pr_family(int);
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void rt_stats(u_long, u_long);
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char *ipx_pnet(struct sockaddr *);
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char *ipx_phost(struct sockaddr *);
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char *ns_phost(struct sockaddr *);
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void upHex(char *);
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char *routename(u_long);
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char *netname(u_long, u_long);
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char *atalk_print(struct sockaddr *, int);
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char *atalk_print2(struct sockaddr *, struct sockaddr *, int);
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char *ipx_print(struct sockaddr *);
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char *ns_print(struct sockaddr *);
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void routepr(u_long);
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void ipxprotopr(u_long, const char *, int, int);
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void spx_stats(u_long, const char *, int, int);
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void ipx_stats(u_long, const char *, int, int);
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void ipxerr_stats(u_long, const char *, int, int);
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void nsprotopr(u_long, const char *, int, int);
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void spp_stats(u_long, const char *, int, int);
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void idp_stats(u_long, const char *, int, int);
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void nserr_stats(u_long, const char *, int, int);
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void atalkprotopr(u_long, const char *, int, int);
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void ddp_stats(u_long, const char *, int, int);
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void netgraphprotopr(u_long, const char *, int, int);
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void unixpr(u_long, u_long, u_long, u_long);
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void esis_stats(u_long, const char *, int, int);
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void clnp_stats(u_long, const char *, int, int);
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void cltp_stats(u_long, const char *, int, int);
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void iso_protopr(u_long, const char *, int, int);
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void iso_protopr1(u_long, int);
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void tp_protopr(u_long, const char *, int, int);
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void tp_inproto(u_long);
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void tp_stats(caddr_t, caddr_t);
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void ifmalist_dump(void);
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void mroutepr(u_long, u_long);
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void mrt_stats(u_long);
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void bpf_stats(char *);
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