1/*-
2 * Copyright (c) 2003, 2004 Silicon Graphics International Corp.
3 * Copyright (c) 1997-2007 Kenneth D. Merry
4 * Copyright (c) 2012 The FreeBSD Foundation
5 * All rights reserved.
6 *
7 * Portions of this software were developed by Edward Tomasz Napierala
8 * under sponsorship from the FreeBSD Foundation.

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30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGES.
34 *
35 */
36
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: stable/10/usr.sbin/ctld/kernel.c 279006 2015-02-19 14:52:01Z mav $");
39
40#include <sys/ioctl.h>
41#include <sys/types.h>
42#include <sys/stat.h>
43#include <sys/param.h>
44#include <sys/linker.h>
45#include <sys/queue.h>
46#include <sys/callout.h>

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116 char *device_id;
117 char *ctld_name;
118 STAILQ_HEAD(,cctl_lun_nv) attr_list;
119 STAILQ_ENTRY(cctl_lun) links;
120};
121
122struct cctl_port {
123 uint32_t port_id;
124 int cfiscsi_state;
125 char *cfiscsi_target;
126 uint16_t cfiscsi_portal_group_tag;
127 char *ctld_portal_group_name;
128 STAILQ_HEAD(,cctl_lun_nv) attr_list;
129 STAILQ_ENTRY(cctl_port) links;
130};
131

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325 free(str);
326 str = NULL;
327 }
328
329 sbuf_delete(devlist->cur_sb[devlist->level]);
330 devlist->cur_sb[devlist->level] = NULL;
331 devlist->level--;
332
333 if (strcmp(name, "cfiscsi_target") == 0) {
334 cur_port->cfiscsi_target = str;
335 str = NULL;
336 } else if (strcmp(name, "cfiscsi_state") == 0) {
337 cur_port->cfiscsi_state = strtoul(str, NULL, 0);
338 } else if (strcmp(name, "cfiscsi_portal_group_tag") == 0) {
339 cur_port->cfiscsi_portal_group_tag = strtoul(str, NULL, 0);
340 } else if (strcmp(name, "ctld_portal_group_name") == 0) {
341 cur_port->ctld_portal_group_name = str;

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373}
374
375struct conf *
376conf_new_from_kernel(void)
377{
378 struct conf *conf = NULL;
379 struct target *targ;
380 struct portal_group *pg;
381 struct port *cp;
382 struct lun *cl;
383 struct lun_option *lo;
384 struct ctl_lun_list list;
385 struct cctl_devlist_data devlist;
386 struct cctl_lun *lun;
387 struct cctl_port *port;
388 XML_Parser parser;

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493 return (NULL);
494 }
495
496 conf = conf_new();
497
498 STAILQ_FOREACH(port, &devlist.port_list, links) {
499
500 if (port->cfiscsi_target == NULL) {
501 log_debugx("CTL port %ju wasn't managed by ctld; "
502 "ignoring", (uintmax_t)port->port_id);
503 continue;
504 }
505 if (port->cfiscsi_state != 1) {
506 log_debugx("CTL port %ju is not active (%d); ignoring",
507 (uintmax_t)port->port_id, port->cfiscsi_state);
508 continue;
509 }
510

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838 struct ctl_req req;
839 struct ctl_lun_map lm;
840 struct target *targ = port->p_target;
841 struct portal_group *pg = port->p_portal_group;
842 char tagstr[16];
843 int error, i, n;
844
845 /* Create iSCSI port. */
846 bzero(&req, sizeof(req));
847 strlcpy(req.driver, "iscsi", sizeof(req.driver));
848 req.reqtype = CTL_REQ_CREATE;
849 req.args = malloc(req.num_args * sizeof(*req.args));
850 n = 0;
851 req.args[n].namelen = sizeof("port_id");
852 req.args[n].name = __DECONST(char *, "port_id");
853 req.args[n].vallen = sizeof(port->p_ctl_port);
854 req.args[n].value = &port->p_ctl_port;
855 req.args[n++].flags = CTL_BEARG_WR;
856 str_arg(&req.args[n++], "cfiscsi_target", targ->t_name);
857 snprintf(tagstr, sizeof(tagstr), "%d", pg->pg_tag);
858 str_arg(&req.args[n++], "cfiscsi_portal_group_tag", tagstr);
859 if (targ->t_alias)
860 str_arg(&req.args[n++], "cfiscsi_target_alias", targ->t_alias);
861 str_arg(&req.args[n++], "ctld_portal_group_name", pg->pg_name);
862 req.num_args = n;
863 error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
864 free(req.args);
865 if (error != 0) {
866 log_warn("error issuing CTL_PORT_REQ ioctl");
867 return (1);
868 }
869 if (req.status == CTL_LUN_ERROR) {
870 log_warnx("error returned from port creation request: %s",
871 req.error_str);
872 return (1);
873 }
874 if (req.status != CTL_LUN_OK) {
875 log_warnx("unknown port creation request status %d",
876 req.status);
877 return (1);
878 }
879
880 /* Explicitly enable mapping to block any access except allowed. */
881 lm.port = port->p_ctl_port;
882 lm.plun = UINT32_MAX;
883 lm.lun = 0;
884 error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
885 if (error != 0)
886 log_warn("CTL_LUN_MAP ioctl failed");

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929 log_warn("CTL_LUN_MAP ioctl failed");
930 }
931 return (0);
932}
933
934int
935kernel_port_remove(struct port *port)
936{
937 struct ctl_req req;
938 char tagstr[16];
939 struct target *targ = port->p_target;
940 struct portal_group *pg = port->p_portal_group;
941 int error;
942
943 bzero(&req, sizeof(req));
944 strlcpy(req.driver, "iscsi", sizeof(req.driver));
945 req.reqtype = CTL_REQ_REMOVE;
946 req.num_args = 2;
947 req.args = malloc(req.num_args * sizeof(*req.args));
948 str_arg(&req.args[0], "cfiscsi_target", targ->t_name);
949 snprintf(tagstr, sizeof(tagstr), "%d", pg->pg_tag);
950 str_arg(&req.args[1], "cfiscsi_portal_group_tag", tagstr);
951
952 error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
953 free(req.args);
954 if (error != 0) {
955 log_warn("error issuing CTL_PORT_REQ ioctl");
956 return (1);
957 }
958
959 if (req.status == CTL_LUN_ERROR) {
960 log_warnx("error returned from port removal request: %s",
961 req.error_str);
962 return (1);
963 }
964
965 if (req.status != CTL_LUN_OK) {
966 log_warnx("unknown port removal request status %d",
967 req.status);
968 return (1);
969 }
970
971 return (0);
972}
973
974#ifdef ICL_KERNEL_PROXY
975void
976kernel_listen(struct addrinfo *ai, bool iser, int portal_id)
977{
978 struct ctl_iscsi req;

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