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freebsd-skq/usr.bin/iscsictl/iscsictl.c
Edward Tomasz Napierala bce7ee9d41 Drop "All rights reserved" from all my stuff. This includes 
Foundation copyrights, approved by emaste@.  It does not include
files which carry other people's copyrights; if you're one
of those people, feel free to make similar change.

Reviewed by:	emaste, imp, gbe (manpages)
Differential Revision:	https://reviews.freebsd.org/D26980
2020-10-28 13:46:11 +00:00

1048 lines
28 KiB
C
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2012 The FreeBSD Foundation
*
* This software was developed by Edward Tomasz Napierala under sponsorship
* from the FreeBSD Foundation.
*
* 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 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/ioctl.h>
#include <sys/param.h>
#include <sys/linker.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libxo/xo.h>
#include <iscsi_ioctl.h>
#include "iscsictl.h"
struct conf *
conf_new(void)
{
struct conf *conf;
conf = calloc(1, sizeof(*conf));
if (conf == NULL)
xo_err(1, "calloc");
TAILQ_INIT(&conf->conf_targets);
return (conf);
}
struct target *
target_find(struct conf *conf, const char *nickname)
{
struct target *targ;
TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
if (targ->t_nickname != NULL &&
strcasecmp(targ->t_nickname, nickname) == 0)
return (targ);
}
return (NULL);
}
struct target *
target_new(struct conf *conf)
{
struct target *targ;
targ = calloc(1, sizeof(*targ));
if (targ == NULL)
xo_err(1, "calloc");
targ->t_conf = conf;
targ->t_dscp = -1;
targ->t_pcp = -1;
TAILQ_INSERT_TAIL(&conf->conf_targets, targ, t_next);
return (targ);
}
void
target_delete(struct target *targ)
{
TAILQ_REMOVE(&targ->t_conf->conf_targets, targ, t_next);
free(targ);
}
static char *
default_initiator_name(void)
{
char *name;
size_t namelen;
int error;
namelen = _POSIX_HOST_NAME_MAX + strlen(DEFAULT_IQN);
name = calloc(1, namelen + 1);
if (name == NULL)
xo_err(1, "calloc");
strcpy(name, DEFAULT_IQN);
error = gethostname(name + strlen(DEFAULT_IQN),
namelen - strlen(DEFAULT_IQN));
if (error != 0)
xo_err(1, "gethostname");
return (name);
}
static bool
valid_hex(const char ch)
{
switch (ch) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case 'a':
case 'A':
case 'b':
case 'B':
case 'c':
case 'C':
case 'd':
case 'D':
case 'e':
case 'E':
case 'f':
case 'F':
return (true);
default:
return (false);
}
}
int
parse_enable(const char *enable)
{
if (enable == NULL)
return (ENABLE_UNSPECIFIED);
if (strcasecmp(enable, "on") == 0 ||
strcasecmp(enable, "yes") == 0)
return (ENABLE_ON);
if (strcasecmp(enable, "off") == 0 ||
strcasecmp(enable, "no") == 0)
return (ENABLE_OFF);
return (ENABLE_UNSPECIFIED);
}
bool
valid_iscsi_name(const char *name)
{
int i;
if (strlen(name) >= MAX_NAME_LEN) {
xo_warnx("overlong name for \"%s\"; max length allowed "
"by iSCSI specification is %d characters",
name, MAX_NAME_LEN);
return (false);
}
/*
* In the cases below, we don't return an error, just in case the admin
* was right, and we're wrong.
*/
if (strncasecmp(name, "iqn.", strlen("iqn.")) == 0) {
for (i = strlen("iqn."); name[i] != '\0'; i++) {
/*
* XXX: We should verify UTF-8 normalisation, as defined
* by 3.2.6.2: iSCSI Name Encoding.
*/
if (isalnum(name[i]))
continue;
if (name[i] == '-' || name[i] == '.' || name[i] == ':')
continue;
xo_warnx("invalid character \"%c\" in iSCSI name "
"\"%s\"; allowed characters are letters, digits, "
"'-', '.', and ':'", name[i], name);
break;
}
/*
* XXX: Check more stuff: valid date and a valid reversed domain.
*/
} else if (strncasecmp(name, "eui.", strlen("eui.")) == 0) {
if (strlen(name) != strlen("eui.") + 16)
xo_warnx("invalid iSCSI name \"%s\"; the \"eui.\" "
"should be followed by exactly 16 hexadecimal "
"digits", name);
for (i = strlen("eui."); name[i] != '\0'; i++) {
if (!valid_hex(name[i])) {
xo_warnx("invalid character \"%c\" in iSCSI "
"name \"%s\"; allowed characters are 1-9 "
"and A-F", name[i], name);
break;
}
}
} else if (strncasecmp(name, "naa.", strlen("naa.")) == 0) {
if (strlen(name) > strlen("naa.") + 32)
xo_warnx("invalid iSCSI name \"%s\"; the \"naa.\" "
"should be followed by at most 32 hexadecimal "
"digits", name);
for (i = strlen("naa."); name[i] != '\0'; i++) {
if (!valid_hex(name[i])) {
xo_warnx("invalid character \"%c\" in ISCSI "
"name \"%s\"; allowed characters are 1-9 "
"and A-F", name[i], name);
break;
}
}
} else {
xo_warnx("invalid iSCSI name \"%s\"; should start with "
"either \".iqn\", \"eui.\", or \"naa.\"",
name);
}
return (true);
}
void
conf_verify(struct conf *conf)
{
struct target *targ;
TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
assert(targ->t_nickname != NULL);
if (targ->t_session_type == SESSION_TYPE_UNSPECIFIED)
targ->t_session_type = SESSION_TYPE_NORMAL;
if (targ->t_session_type == SESSION_TYPE_NORMAL &&
targ->t_name == NULL)
xo_errx(1, "missing TargetName for target \"%s\"",
targ->t_nickname);
if (targ->t_session_type == SESSION_TYPE_DISCOVERY &&
targ->t_name != NULL)
xo_errx(1, "cannot specify TargetName for discovery "
"sessions for target \"%s\"", targ->t_nickname);
if (targ->t_name != NULL) {
if (valid_iscsi_name(targ->t_name) == false)
xo_errx(1, "invalid target name \"%s\"",
targ->t_name);
}
if (targ->t_protocol == PROTOCOL_UNSPECIFIED)
targ->t_protocol = PROTOCOL_ISCSI;
if (targ->t_address == NULL)
xo_errx(1, "missing TargetAddress for target \"%s\"",
targ->t_nickname);
if (targ->t_initiator_name == NULL)
targ->t_initiator_name = default_initiator_name();
if (valid_iscsi_name(targ->t_initiator_name) == false)
xo_errx(1, "invalid initiator name \"%s\"",
targ->t_initiator_name);
if (targ->t_header_digest == DIGEST_UNSPECIFIED)
targ->t_header_digest = DIGEST_NONE;
if (targ->t_data_digest == DIGEST_UNSPECIFIED)
targ->t_data_digest = DIGEST_NONE;
if (targ->t_auth_method == AUTH_METHOD_UNSPECIFIED) {
if (targ->t_user != NULL || targ->t_secret != NULL ||
targ->t_mutual_user != NULL ||
targ->t_mutual_secret != NULL)
targ->t_auth_method =
AUTH_METHOD_CHAP;
else
targ->t_auth_method =
AUTH_METHOD_NONE;
}
if (targ->t_auth_method == AUTH_METHOD_CHAP) {
if (targ->t_user == NULL) {
xo_errx(1, "missing chapIName for target \"%s\"",
targ->t_nickname);
}
if (targ->t_secret == NULL)
xo_errx(1, "missing chapSecret for target \"%s\"",
targ->t_nickname);
if (targ->t_mutual_user != NULL ||
targ->t_mutual_secret != NULL) {
if (targ->t_mutual_user == NULL)
xo_errx(1, "missing tgtChapName for "
"target \"%s\"", targ->t_nickname);
if (targ->t_mutual_secret == NULL)
xo_errx(1, "missing tgtChapSecret for "
"target \"%s\"", targ->t_nickname);
}
}
}
}
static void
conf_from_target(struct iscsi_session_conf *conf,
const struct target *targ)
{
memset(conf, 0, sizeof(*conf));
/*
* XXX: Check bounds and return error instead of silently truncating.
*/
if (targ->t_initiator_name != NULL)
strlcpy(conf->isc_initiator, targ->t_initiator_name,
sizeof(conf->isc_initiator));
if (targ->t_initiator_address != NULL)
strlcpy(conf->isc_initiator_addr, targ->t_initiator_address,
sizeof(conf->isc_initiator_addr));
if (targ->t_initiator_alias != NULL)
strlcpy(conf->isc_initiator_alias, targ->t_initiator_alias,
sizeof(conf->isc_initiator_alias));
if (targ->t_name != NULL)
strlcpy(conf->isc_target, targ->t_name,
sizeof(conf->isc_target));
if (targ->t_address != NULL)
strlcpy(conf->isc_target_addr, targ->t_address,
sizeof(conf->isc_target_addr));
if (targ->t_user != NULL)
strlcpy(conf->isc_user, targ->t_user,
sizeof(conf->isc_user));
if (targ->t_secret != NULL)
strlcpy(conf->isc_secret, targ->t_secret,
sizeof(conf->isc_secret));
if (targ->t_mutual_user != NULL)
strlcpy(conf->isc_mutual_user, targ->t_mutual_user,
sizeof(conf->isc_mutual_user));
if (targ->t_mutual_secret != NULL)
strlcpy(conf->isc_mutual_secret, targ->t_mutual_secret,
sizeof(conf->isc_mutual_secret));
if (targ->t_session_type == SESSION_TYPE_DISCOVERY)
conf->isc_discovery = 1;
if (targ->t_enable != ENABLE_OFF)
conf->isc_enable = 1;
if (targ->t_protocol == PROTOCOL_ISER)
conf->isc_iser = 1;
if (targ->t_offload != NULL)
strlcpy(conf->isc_offload, targ->t_offload,
sizeof(conf->isc_offload));
if (targ->t_header_digest == DIGEST_CRC32C)
conf->isc_header_digest = ISCSI_DIGEST_CRC32C;
else
conf->isc_header_digest = ISCSI_DIGEST_NONE;
if (targ->t_data_digest == DIGEST_CRC32C)
conf->isc_data_digest = ISCSI_DIGEST_CRC32C;
else
conf->isc_data_digest = ISCSI_DIGEST_NONE;
conf->isc_dscp = targ->t_dscp;
conf->isc_pcp = targ->t_pcp;
}
static int
kernel_add(int iscsi_fd, const struct target *targ)
{
struct iscsi_session_add isa;
int error;
memset(&isa, 0, sizeof(isa));
conf_from_target(&isa.isa_conf, targ);
error = ioctl(iscsi_fd, ISCSISADD, &isa);
if (error != 0)
xo_warn("ISCSISADD");
return (error);
}
static int
kernel_modify(int iscsi_fd, unsigned int session_id, const struct target *targ)
{
struct iscsi_session_modify ism;
int error;
memset(&ism, 0, sizeof(ism));
ism.ism_session_id = session_id;
conf_from_target(&ism.ism_conf, targ);
error = ioctl(iscsi_fd, ISCSISMODIFY, &ism);
if (error != 0)
xo_warn("ISCSISMODIFY");
return (error);
}
static void
kernel_modify_some(int iscsi_fd, unsigned int session_id, const char *target,
const char *target_addr, const char *user, const char *secret, int enable)
{
struct iscsi_session_state *states = NULL;
struct iscsi_session_state *state;
struct iscsi_session_conf *conf;
struct iscsi_session_list isl;
struct iscsi_session_modify ism;
unsigned int i, nentries = 1;
int error;
for (;;) {
states = realloc(states,
nentries * sizeof(struct iscsi_session_state));
if (states == NULL)
xo_err(1, "realloc");
memset(&isl, 0, sizeof(isl));
isl.isl_nentries = nentries;
isl.isl_pstates = states;
error = ioctl(iscsi_fd, ISCSISLIST, &isl);
if (error != 0 && errno == EMSGSIZE) {
nentries *= 4;
continue;
}
break;
}
if (error != 0)
xo_errx(1, "ISCSISLIST");
for (i = 0; i < isl.isl_nentries; i++) {
state = &states[i];
if (state->iss_id == session_id)
break;
}
if (i == isl.isl_nentries)
xo_errx(1, "session-id %u not found", session_id);
conf = &state->iss_conf;
if (target != NULL)
strlcpy(conf->isc_target, target, sizeof(conf->isc_target));
if (target_addr != NULL)
strlcpy(conf->isc_target_addr, target_addr,
sizeof(conf->isc_target_addr));
if (user != NULL)
strlcpy(conf->isc_user, user, sizeof(conf->isc_user));
if (secret != NULL)
strlcpy(conf->isc_secret, secret, sizeof(conf->isc_secret));
if (enable == ENABLE_ON)
conf->isc_enable = 1;
else if (enable == ENABLE_OFF)
conf->isc_enable = 0;
memset(&ism, 0, sizeof(ism));
ism.ism_session_id = session_id;
memcpy(&ism.ism_conf, conf, sizeof(ism.ism_conf));
error = ioctl(iscsi_fd, ISCSISMODIFY, &ism);
if (error != 0)
xo_warn("ISCSISMODIFY");
}
static int
kernel_remove(int iscsi_fd, const struct target *targ)
{
struct iscsi_session_remove isr;
int error;
memset(&isr, 0, sizeof(isr));
conf_from_target(&isr.isr_conf, targ);
error = ioctl(iscsi_fd, ISCSISREMOVE, &isr);
if (error != 0)
xo_warn("ISCSISREMOVE");
return (error);
}
/*
* XXX: Add filtering.
*/
static int
kernel_list(int iscsi_fd, const struct target *targ __unused,
int verbose)
{
struct iscsi_session_state *states = NULL;
const struct iscsi_session_state *state;
const struct iscsi_session_conf *conf;
struct iscsi_session_list isl;
unsigned int i, nentries = 1;
int error;
for (;;) {
states = realloc(states,
nentries * sizeof(struct iscsi_session_state));
if (states == NULL)
xo_err(1, "realloc");
memset(&isl, 0, sizeof(isl));
isl.isl_nentries = nentries;
isl.isl_pstates = states;
error = ioctl(iscsi_fd, ISCSISLIST, &isl);
if (error != 0 && errno == EMSGSIZE) {
nentries *= 4;
continue;
}
break;
}
if (error != 0) {
xo_warn("ISCSISLIST");
return (error);
}
if (verbose != 0) {
xo_open_list("session");
for (i = 0; i < isl.isl_nentries; i++) {
state = &states[i];
conf = &state->iss_conf;
xo_open_instance("session");
/*
* Display-only modifier as this information
* is also present within the 'session' container
*/
xo_emit("{L:/%-26s}{V:sessionId/%u}\n",
"Session ID:", state->iss_id);
xo_open_container("initiator");
xo_emit("{L:/%-26s}{V:name/%s}\n",
"Initiator name:", conf->isc_initiator);
xo_emit("{L:/%-26s}{V:portal/%s}\n",
"Initiator portal:", conf->isc_initiator_addr);
xo_emit("{L:/%-26s}{V:alias/%s}\n",
"Initiator alias:", conf->isc_initiator_alias);
xo_close_container("initiator");
xo_open_container("target");
xo_emit("{L:/%-26s}{V:name/%s}\n",
"Target name:", conf->isc_target);
xo_emit("{L:/%-26s}{V:portal/%s}\n",
"Target portal:", conf->isc_target_addr);
xo_emit("{L:/%-26s}{V:alias/%s}\n",
"Target alias:", state->iss_target_alias);
if (conf->isc_dscp != -1)
xo_emit("{L:/%-26s}{V:dscp/0x%02x}\n",
"Target DSCP:", conf->isc_dscp);
if (conf->isc_pcp != -1)
xo_emit("{L:/%-26s}{V:pcp/0x%02x}\n",
"Target PCP:", conf->isc_pcp);
xo_close_container("target");
xo_open_container("auth");
xo_emit("{L:/%-26s}{V:user/%s}\n",
"User:", conf->isc_user);
xo_emit("{L:/%-26s}{V:secret/%s}\n",
"Secret:", conf->isc_secret);
xo_emit("{L:/%-26s}{V:mutualUser/%s}\n",
"Mutual user:", conf->isc_mutual_user);
xo_emit("{L:/%-26s}{V:mutualSecret/%s}\n",
"Mutual secret:", conf->isc_mutual_secret);
xo_close_container("auth");
xo_emit("{L:/%-26s}{V:type/%s}\n",
"Session type:",
conf->isc_discovery ? "Discovery" : "Normal");
xo_emit("{L:/%-26s}{V:enable/%s}\n",
"Enable:",
conf->isc_enable ? "Yes" : "No");
xo_emit("{L:/%-26s}{V:state/%s}\n",
"Session state:",
state->iss_connected ? "Connected" : "Disconnected");
xo_emit("{L:/%-26s}{V:failureReason/%s}\n",
"Failure reason:", state->iss_reason);
xo_emit("{L:/%-26s}{V:headerDigest/%s}\n",
"Header digest:",
state->iss_header_digest == ISCSI_DIGEST_CRC32C ?
"CRC32C" : "None");
xo_emit("{L:/%-26s}{V:dataDigest/%s}\n",
"Data digest:",
state->iss_data_digest == ISCSI_DIGEST_CRC32C ?
"CRC32C" : "None");
xo_emit("{L:/%-26s}{V:recvDataSegmentLen/%d}\n",
"MaxRecvDataSegmentLength:",
state->iss_max_recv_data_segment_length);
xo_emit("{L:/%-26s}{V:sendDataSegmentLen/%d}\n",
"MaxSendDataSegmentLength:",
state->iss_max_send_data_segment_length);
xo_emit("{L:/%-26s}{V:maxBurstLen/%d}\n",
"MaxBurstLen:", state->iss_max_burst_length);
xo_emit("{L:/%-26s}{V:firstBurstLen/%d}\n",
"FirstBurstLen:", state->iss_first_burst_length);
xo_emit("{L:/%-26s}{V:immediateData/%s}\n",
"ImmediateData:", state->iss_immediate_data ? "Yes" : "No");
xo_emit("{L:/%-26s}{V:iSER/%s}\n",
"iSER (RDMA):", conf->isc_iser ? "Yes" : "No");
xo_emit("{L:/%-26s}{V:offloadDriver/%s}\n",
"Offload driver:", state->iss_offload);
xo_emit("{L:/%-26s}",
"Device nodes:");
print_periphs(state->iss_id);
xo_emit("\n\n");
xo_close_instance("session");
}
xo_close_list("session");
} else {
xo_emit("{T:/%-36s} {T:/%-16s} {T:/%s}\n",
"Target name", "Target portal", "State");
if (isl.isl_nentries != 0)
xo_open_list("session");
for (i = 0; i < isl.isl_nentries; i++) {
state = &states[i];
conf = &state->iss_conf;
xo_open_instance("session");
xo_emit("{V:name/%-36s/%s} {V:portal/%-16s/%s} ",
conf->isc_target, conf->isc_target_addr);
if (state->iss_reason[0] != '\0' &&
conf->isc_enable != 0) {
xo_emit("{V:state/%s}\n", state->iss_reason);
} else {
if (conf->isc_discovery) {
xo_emit("{V:state}\n", "Discovery");
} else if (conf->isc_enable == 0) {
xo_emit("{V:state}\n", "Disabled");
} else if (state->iss_connected) {
xo_emit("{V:state}: ", "Connected");
print_periphs(state->iss_id);
xo_emit("\n");
} else {
xo_emit("{V:state}\n", "Disconnected");
}
}
xo_close_instance("session");
}
if (isl.isl_nentries != 0)
xo_close_list("session");
}
return (0);
}
static int
kernel_wait(int iscsi_fd, int timeout)
{
struct iscsi_session_state *states = NULL;
const struct iscsi_session_state *state;
struct iscsi_session_list isl;
unsigned int i, nentries = 1;
bool all_connected;
int error;
for (;;) {
for (;;) {
states = realloc(states,
nentries * sizeof(struct iscsi_session_state));
if (states == NULL)
xo_err(1, "realloc");
memset(&isl, 0, sizeof(isl));
isl.isl_nentries = nentries;
isl.isl_pstates = states;
error = ioctl(iscsi_fd, ISCSISLIST, &isl);
if (error != 0 && errno == EMSGSIZE) {
nentries *= 4;
continue;
}
break;
}
if (error != 0) {
xo_warn("ISCSISLIST");
return (error);
}
all_connected = true;
for (i = 0; i < isl.isl_nentries; i++) {
state = &states[i];
if (!state->iss_connected) {
all_connected = false;
break;
}
}
if (all_connected)
return (0);
sleep(1);
if (timeout > 0) {
timeout--;
if (timeout == 0)
return (1);
}
}
}
static void
usage(void)
{
fprintf(stderr, "usage: iscsictl -A -p portal -t target "
"[-u user -s secret] [-w timeout] [-e on | off]\n");
fprintf(stderr, " iscsictl -A -d discovery-host "
"[-u user -s secret] [-e on | off]\n");
fprintf(stderr, " iscsictl -A -a [-c path]\n");
fprintf(stderr, " iscsictl -A -n nickname [-c path]\n");
fprintf(stderr, " iscsictl -M -i session-id [-p portal] "
"[-t target] [-u user] [-s secret] [-e on | off]\n");
fprintf(stderr, " iscsictl -M -i session-id -n nickname "
"[-c path]\n");
fprintf(stderr, " iscsictl -R [-p portal] [-t target]\n");
fprintf(stderr, " iscsictl -R -a\n");
fprintf(stderr, " iscsictl -R -n nickname [-c path]\n");
fprintf(stderr, " iscsictl -L [-v] [-w timeout]\n");
exit(1);
}
int
main(int argc, char **argv)
{
int Aflag = 0, Mflag = 0, Rflag = 0, Lflag = 0, aflag = 0,
rflag = 0, vflag = 0;
const char *conf_path = DEFAULT_CONFIG_PATH;
char *nickname = NULL, *discovery_host = NULL, *portal = NULL,
*target = NULL, *user = NULL, *secret = NULL;
int timeout = -1, enable = ENABLE_UNSPECIFIED;
long long session_id = -1;
char *end;
int ch, error, iscsi_fd, retval, saved_errno;
int failed = 0;
struct conf *conf;
struct target *targ;
argc = xo_parse_args(argc, argv);
xo_open_container("iscsictl");
while ((ch = getopt(argc, argv, "AMRLac:d:e:i:n:p:rt:u:s:vw:")) != -1) {
switch (ch) {
case 'A':
Aflag = 1;
break;
case 'M':
Mflag = 1;
break;
case 'R':
Rflag = 1;
break;
case 'L':
Lflag = 1;
break;
case 'a':
aflag = 1;
break;
case 'c':
conf_path = optarg;
break;
case 'd':
discovery_host = optarg;
break;
case 'e':
enable = parse_enable(optarg);
if (enable == ENABLE_UNSPECIFIED) {
xo_errx(1, "invalid argument to -e, "
"must be either \"on\" or \"off\"");
}
break;
case 'i':
session_id = strtol(optarg, &end, 10);
if ((size_t)(end - optarg) != strlen(optarg))
xo_errx(1, "trailing characters after session-id");
if (session_id < 0)
xo_errx(1, "session-id cannot be negative");
if (session_id > UINT_MAX)
xo_errx(1, "session-id cannot be greater than %u",
UINT_MAX);
break;
case 'n':
nickname = optarg;
break;
case 'p':
portal = optarg;
break;
case 'r':
rflag = 1;
break;
case 't':
target = optarg;
break;
case 'u':
user = optarg;
break;
case 's':
secret = optarg;
break;
case 'v':
vflag = 1;
break;
case 'w':
timeout = strtol(optarg, &end, 10);
if ((size_t)(end - optarg) != strlen(optarg))
xo_errx(1, "trailing characters after timeout");
if (timeout < 0)
xo_errx(1, "timeout cannot be negative");
break;
case '?':
default:
usage();
}
}
argc -= optind;
if (argc != 0)
usage();
if (Aflag + Mflag + Rflag + Lflag == 0)
Lflag = 1;
if (Aflag + Mflag + Rflag + Lflag > 1)
xo_errx(1, "at most one of -A, -M, -R, or -L may be specified");
/*
* Note that we ignore unnecessary/inapplicable "-c" flag; so that
* people can do something like "alias ISCSICTL="iscsictl -c path"
* in shell scripts.
*/
if (Aflag != 0) {
if (aflag != 0) {
if (enable != ENABLE_UNSPECIFIED)
xo_errx(1, "-a and -e are mutually exclusive");
if (portal != NULL)
xo_errx(1, "-a and -p are mutually exclusive");
if (target != NULL)
xo_errx(1, "-a and -t are mutually exclusive");
if (user != NULL)
xo_errx(1, "-a and -u are mutually exclusive");
if (secret != NULL)
xo_errx(1, "-a and -s are mutually exclusive");
if (nickname != NULL)
xo_errx(1, "-a and -n are mutually exclusive");
if (discovery_host != NULL)
xo_errx(1, "-a and -d are mutually exclusive");
if (rflag != 0)
xo_errx(1, "-a and -r are mutually exclusive");
} else if (nickname != NULL) {
if (enable != ENABLE_UNSPECIFIED)
xo_errx(1, "-n and -e are mutually exclusive");
if (portal != NULL)
xo_errx(1, "-n and -p are mutually exclusive");
if (target != NULL)
xo_errx(1, "-n and -t are mutually exclusive");
if (user != NULL)
xo_errx(1, "-n and -u are mutually exclusive");
if (secret != NULL)
xo_errx(1, "-n and -s are mutually exclusive");
if (discovery_host != NULL)
xo_errx(1, "-n and -d are mutually exclusive");
if (rflag != 0)
xo_errx(1, "-n and -r are mutually exclusive");
} else if (discovery_host != NULL) {
if (portal != NULL)
xo_errx(1, "-d and -p are mutually exclusive");
if (target != NULL)
xo_errx(1, "-d and -t are mutually exclusive");
} else {
if (target == NULL && portal == NULL)
xo_errx(1, "must specify -a, -n or -t/-p");
if (target != NULL && portal == NULL)
xo_errx(1, "-t must always be used with -p");
if (portal != NULL && target == NULL)
xo_errx(1, "-p must always be used with -t");
}
if (user != NULL && secret == NULL)
xo_errx(1, "-u must always be used with -s");
if (secret != NULL && user == NULL)
xo_errx(1, "-s must always be used with -u");
if (session_id != -1)
xo_errx(1, "-i cannot be used with -A");
if (vflag != 0)
xo_errx(1, "-v cannot be used with -A");
} else if (Mflag != 0) {
if (session_id == -1)
xo_errx(1, "-M requires -i");
if (nickname != NULL) {
if (enable != ENABLE_UNSPECIFIED)
xo_errx(1, "-n and -e are mutually exclusive");
if (portal != NULL)
xo_errx(1, "-n and -p are mutually exclusive");
if (target != NULL)
xo_errx(1, "-n and -t are mutually exclusive");
if (user != NULL)
xo_errx(1, "-n and -u are mutually exclusive");
if (secret != NULL)
xo_errx(1, "-n and -s are mutually exclusive");
}
if (aflag != 0)
xo_errx(1, "-a cannot be used with -M");
if (discovery_host != NULL)
xo_errx(1, "-d cannot be used with -M");
if (rflag != 0)
xo_errx(1, "-r cannot be used with -M");
if (vflag != 0)
xo_errx(1, "-v cannot be used with -M");
if (timeout != -1)
xo_errx(1, "-w cannot be used with -M");
} else if (Rflag != 0) {
if (aflag != 0) {
if (portal != NULL)
xo_errx(1, "-a and -p are mutually exclusive");
if (target != NULL)
xo_errx(1, "-a and -t are mutually exclusive");
if (nickname != NULL)
xo_errx(1, "-a and -n are mutually exclusive");
} else if (nickname != NULL) {
if (portal != NULL)
xo_errx(1, "-n and -p are mutually exclusive");
if (target != NULL)
xo_errx(1, "-n and -t are mutually exclusive");
} else if (target == NULL && portal == NULL) {
xo_errx(1, "must specify either -a, -n, -t, or -p");
}
if (discovery_host != NULL)
xo_errx(1, "-d cannot be used with -R");
if (enable != ENABLE_UNSPECIFIED)
xo_errx(1, "-e cannot be used with -R");
if (session_id != -1)
xo_errx(1, "-i cannot be used with -R");
if (rflag != 0)
xo_errx(1, "-r cannot be used with -R");
if (user != NULL)
xo_errx(1, "-u cannot be used with -R");
if (secret != NULL)
xo_errx(1, "-s cannot be used with -R");
if (vflag != 0)
xo_errx(1, "-v cannot be used with -R");
if (timeout != -1)
xo_errx(1, "-w cannot be used with -R");
} else {
assert(Lflag != 0);
if (discovery_host != NULL)
xo_errx(1, "-d cannot be used with -L");
if (session_id != -1)
xo_errx(1, "-i cannot be used with -L");
if (nickname != NULL)
xo_errx(1, "-n cannot be used with -L");
if (portal != NULL)
xo_errx(1, "-p cannot be used with -L");
if (rflag != 0)
xo_errx(1, "-r cannot be used with -L");
if (target != NULL)
xo_errx(1, "-t cannot be used with -L");
if (user != NULL)
xo_errx(1, "-u cannot be used with -L");
if (secret != NULL)
xo_errx(1, "-s cannot be used with -L");
}
iscsi_fd = open(ISCSI_PATH, O_RDWR);
if (iscsi_fd < 0 && errno == ENOENT) {
saved_errno = errno;
retval = kldload("iscsi");
if (retval != -1)
iscsi_fd = open(ISCSI_PATH, O_RDWR);
else
errno = saved_errno;
}
if (iscsi_fd < 0)
xo_err(1, "failed to open %s", ISCSI_PATH);
if (Aflag != 0 && aflag != 0) {
conf = conf_new_from_file(conf_path);
TAILQ_FOREACH(targ, &conf->conf_targets, t_next)
failed += kernel_add(iscsi_fd, targ);
} else if (nickname != NULL) {
conf = conf_new_from_file(conf_path);
targ = target_find(conf, nickname);
if (targ == NULL)
xo_errx(1, "target %s not found in %s",
nickname, conf_path);
if (Aflag != 0)
failed += kernel_add(iscsi_fd, targ);
else if (Mflag != 0)
failed += kernel_modify(iscsi_fd, session_id, targ);
else if (Rflag != 0)
failed += kernel_remove(iscsi_fd, targ);
else
failed += kernel_list(iscsi_fd, targ, vflag);
} else if (Mflag != 0) {
kernel_modify_some(iscsi_fd, session_id, target, portal,
user, secret, enable);
} else {
if (Aflag != 0 && target != NULL) {
if (valid_iscsi_name(target) == false)
xo_errx(1, "invalid target name \"%s\"", target);
}
conf = conf_new();
targ = target_new(conf);
targ->t_initiator_name = default_initiator_name();
targ->t_header_digest = DIGEST_NONE;
targ->t_data_digest = DIGEST_NONE;
targ->t_name = target;
if (discovery_host != NULL) {
targ->t_session_type = SESSION_TYPE_DISCOVERY;
targ->t_address = discovery_host;
} else {
targ->t_session_type = SESSION_TYPE_NORMAL;
targ->t_address = portal;
}
targ->t_enable = enable;
if (rflag != 0)
targ->t_protocol = PROTOCOL_ISER;
targ->t_user = user;
targ->t_secret = secret;
if (Aflag != 0)
failed += kernel_add(iscsi_fd, targ);
else if (Rflag != 0)
failed += kernel_remove(iscsi_fd, targ);
else
failed += kernel_list(iscsi_fd, targ, vflag);
}
if (timeout != -1)
failed += kernel_wait(iscsi_fd, timeout);
error = close(iscsi_fd);
if (error != 0)
xo_err(1, "close");
xo_close_container("iscsictl");
xo_finish();
if (failed != 0)
return (1);
return (0);
}
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