4 * Copyright (c) 2006 Chad Mynhier.
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 #ifdef USE_SOLARIS_PROCESS_CONTRACTS
24 #include <sys/types.h>
26 #include <sys/param.h>
35 #include <libcontract.h>
36 #include <sys/contract/process.h>
41 #define CT_TEMPLATE CTFS_ROOT "/process/template"
42 #define CT_LATEST CTFS_ROOT "/process/latest"
44 static int tmpl_fd = -1;
46 /* Lookup the latest process contract */
48 get_active_process_contract_id(void)
54 if ((stat_fd = open64(CT_LATEST, O_RDONLY)) == -1) {
55 error("%s: Error opening 'latest' process "
56 "contract: %s", __func__, strerror(errno));
59 if (ct_status_read(stat_fd, CTD_COMMON, &stathdl) != 0) {
60 error("%s: Error reading process contract "
61 "status: %s", __func__, strerror(errno));
64 if ((ctid = ct_status_get_id(stathdl)) < 0) {
65 error("%s: Error getting process contract id: %s",
66 __func__, strerror(errno));
70 ct_status_free(stathdl);
77 solaris_contract_pre_fork(void)
79 if ((tmpl_fd = open64(CT_TEMPLATE, O_RDWR)) == -1) {
80 error("%s: open %s: %s", __func__,
81 CT_TEMPLATE, strerror(errno));
85 debug2("%s: setting up process contract template on fd %d",
88 /* We have to set certain attributes before activating the template */
89 if (ct_pr_tmpl_set_fatal(tmpl_fd,
90 CT_PR_EV_HWERR|CT_PR_EV_SIGNAL|CT_PR_EV_CORE) != 0) {
91 error("%s: Error setting process contract template "
92 "fatal events: %s", __func__, strerror(errno));
95 if (ct_tmpl_set_critical(tmpl_fd, CT_PR_EV_HWERR) != 0) {
96 error("%s: Error setting process contract template "
97 "critical events: %s", __func__, strerror(errno));
101 /* Now make this the active template for this process. */
102 if (ct_tmpl_activate(tmpl_fd) != 0) {
103 error("%s: Error activating process contract "
104 "template: %s", __func__, strerror(errno));
117 solaris_contract_post_fork_child()
119 debug2("%s: clearing process contract template on fd %d",
122 /* Clear the active template. */
123 if (ct_tmpl_clear(tmpl_fd) != 0)
124 error("%s: Error clearing active process contract "
125 "template: %s", __func__, strerror(errno));
132 solaris_contract_post_fork_parent(pid_t pid)
136 int r, ctl_fd = -1, stat_fd = -1;
138 debug2("%s: clearing template (fd %d)", __func__, tmpl_fd);
143 /* First clear the active template. */
144 if ((r = ct_tmpl_clear(tmpl_fd)) != 0)
145 error("%s: Error clearing active process contract "
146 "template: %s", __func__, strerror(errno));
152 * If either the fork didn't succeed (pid < 0), or clearing
153 * th active contract failed (r != 0), then we have nothing
156 if (r != 0 || pid <= 0)
159 /* Now lookup and abandon the contract we've created. */
160 ctid = get_active_process_contract_id();
162 debug2("%s: abandoning contract id %ld", __func__, ctid);
164 snprintf(ctl_path, sizeof(ctl_path),
165 CTFS_ROOT "/process/%ld/ctl", ctid);
166 if ((ctl_fd = open64(ctl_path, O_WRONLY)) < 0) {
167 error("%s: Error opening process contract "
168 "ctl file: %s", __func__, strerror(errno));
171 if (ct_ctl_abandon(ctl_fd) < 0) {
172 error("%s: Error abandoning process contract: %s",
173 __func__, strerror(errno));