X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flogin%2Flogind-session.c;h=16d4955d5d94bc1f69151140ad689026149ec12b;hb=0d0f0c50d3a1d90f03972a6abb82e6413daaa583;hp=4e0af8656b6a570d95c0fcee501945409a1ecb13;hpb=c9d8629baa09f853fbcc44972c9748e70562270c;p=elogind.git

diff --git a/src/login/logind-session.c b/src/login/logind-session.c
index 4e0af8656..16d4955d5 100644
--- a/src/login/logind-session.c
+++ b/src/login/logind-session.c
@@ -6,16 +6,16 @@
   Copyright 2011 Lennart Poettering
 
   systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
   (at your option) any later version.
 
   systemd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
+  Lesser General Public License for more details.
 
-  You should have received a copy of the GNU General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
@@ -25,10 +25,12 @@
 #include <sys/epoll.h>
 #include <fcntl.h>
 
-#include "logind-session.h"
 #include "strv.h"
 #include "util.h"
+#include "mkdir.h"
+#include "path-util.h"
 #include "cgroup-util.h"
+#include "logind-session.h"
 
 #define IDLE_THRESHOLD_USEC (5*USEC_PER_MINUTE)
 
@@ -48,10 +50,10 @@ Session* session_new(Manager *m, User *u, const char *id) {
                 return NULL;
         }
 
-        s->id = file_name_from_path(s->state_file);
+        s->id = path_get_file_name(s->state_file);
 
         if (hashmap_put(m->sessions, s->id, s) < 0) {
-                free(s->id);
+                free(s->state_file);
                 free(s);
                 return NULL;
         }
@@ -86,7 +88,7 @@ void session_free(Session *s) {
         }
 
         if (s->cgroup_path)
-                hashmap_remove(s->manager->cgroups, s->cgroup_path);
+                hashmap_remove(s->manager->session_cgroups, s->cgroup_path);
 
         free(s->cgroup_path);
         strv_free(s->controllers);
@@ -98,7 +100,6 @@ void session_free(Session *s) {
         free(s->service);
 
         hashmap_remove(s->manager->sessions, s->id);
-
         session_remove_fifo(s);
 
         free(s->state_file);
@@ -115,7 +116,7 @@ int session_save(Session *s) {
         if (!s->started)
                 return 0;
 
-        r = safe_mkdir("/run/systemd/sessions", 0755, 0, 0);
+        r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0);
         if (r < 0)
                 goto finish;
 
@@ -132,11 +133,13 @@ int session_save(Session *s) {
                 "UID=%lu\n"
                 "USER=%s\n"
                 "ACTIVE=%i\n"
+                "STATE=%s\n"
                 "REMOTE=%i\n"
                 "KILL_PROCESSES=%i\n",
                 (unsigned long) s->user->uid,
                 s->user->name,
                 session_is_active(s),
+                session_state_to_string(session_get_state(s)),
                 s->remote,
                 s->kill_processes);
 
@@ -286,14 +289,9 @@ int session_load(Session *s) {
         }
 
         if (leader) {
-                pid_t pid;
-
-                k = parse_pid(leader, &pid);
-                if (k >= 0 && pid >= 1) {
-                        s->leader = pid;
-
-                        audit_session_from_pid(pid, &s->audit_id);
-                }
+                k = parse_pid(leader, &s->leader);
+                if (k >= 0)
+                        audit_session_from_pid(s->leader, &s->audit_id);
         }
 
         if (type) {
@@ -325,7 +323,6 @@ int session_load(Session *s) {
                         close_nointr_nofail(fd);
         }
 
-
 finish:
         free(remote);
         free(kill_processes);
@@ -333,6 +330,7 @@ finish:
         free(vtnr);
         free(leader);
         free(audit_id);
+        free(class);
 
         return r;
 }
@@ -376,17 +374,15 @@ static int session_link_x11_socket(Session *s) {
 
         k = strspn(s->display+1, "0123456789");
         f = new(char, sizeof("/tmp/.X11-unix/X") + k);
-        if (!f) {
-                log_error("Out of memory");
-                return -ENOMEM;
-        }
+        if (!f)
+                return log_oom();
 
         c = stpcpy(f, "/tmp/.X11-unix/X");
         memcpy(c, s->display+1, k);
         c[k] = 0;
 
         if (access(f, F_OK) < 0) {
-                log_warning("Session %s has display %s with nonexisting socket %s.", s->id, s->display, f);
+                log_warning("Session %s has display %s with non-existing socket %s.", s->id, s->display, f);
                 free(f);
                 return -ENOENT;
         }
@@ -397,9 +393,8 @@ static int session_link_x11_socket(Session *s) {
 
         t = strappend(s->user->runtime_path, "/X11-display");
         if (!t) {
-                log_error("Out of memory");
                 free(f);
-                return -ENOMEM;
+                return log_oom();
         }
 
         if (link(f, t) < 0) {
@@ -470,10 +465,8 @@ static int session_create_cgroup(Session *s) {
         assert(s->user->cgroup_path);
 
         if (!s->cgroup_path) {
-                if (asprintf(&p, "%s/%s", s->user->cgroup_path, s->id) < 0) {
-                        log_error("Out of memory");
-                        return -ENOMEM;
-                }
+                if (asprintf(&p, "%s/%s", s->user->cgroup_path, s->id) < 0)
+                        return log_oom();
         } else
                 p = s->cgroup_path;
 
@@ -531,7 +524,7 @@ static int session_create_cgroup(Session *s) {
                 }
         }
 
-        hashmap_put(s->manager->cgroups, s->cgroup_path, s);
+        hashmap_put(s->manager->session_cgroups, s->cgroup_path, s);
 
         return 0;
 }
@@ -650,7 +643,7 @@ static int session_terminate_cgroup(Session *s) {
         STRV_FOREACH(k, s->user->manager->controllers)
                 cg_trim(*k, s->cgroup_path, true);
 
-        hashmap_remove(s->manager->cgroups, s->cgroup_path);
+        hashmap_remove(s->manager->session_cgroups, s->cgroup_path);
 
         free(s->cgroup_path);
         s->cgroup_path = NULL;
@@ -671,10 +664,8 @@ static int session_unlink_x11_socket(Session *s) {
         s->user->display = NULL;
 
         t = strappend(s->user->runtime_path, "/X11-display");
-        if (!t) {
-                log_error("Out of memory");
-                return -ENOMEM;
-        }
+        if (!t)
+                return log_oom();
 
         r = unlink(t);
         free(t);
@@ -771,7 +762,7 @@ int session_get_idle_hint(Session *s, dual_timestamp *t) {
         b = u + IDLE_THRESHOLD_USEC < n;
 
         if (t)
-                dual_timestamp_from_realtime(t, u + b ? IDLE_THRESHOLD_USEC : 0);
+                dual_timestamp_from_realtime(t, u + b*IDLE_THRESHOLD_USEC);
 
         return b;
 
@@ -820,7 +811,7 @@ int session_create_fifo(Session *s) {
 
         /* Create FIFO */
         if (!s->fifo_path) {
-                r = safe_mkdir("/run/systemd/sessions", 0755, 0, 0);
+                r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0);
                 if (r < 0)
                         return r;
 
@@ -839,13 +830,13 @@ int session_create_fifo(Session *s) {
                 if (s->fifo_fd < 0)
                         return -errno;
 
-                r = hashmap_put(s->manager->fifo_fds, INT_TO_PTR(s->fifo_fd + 1), s);
+                r = hashmap_put(s->manager->session_fds, INT_TO_PTR(s->fifo_fd + 1), s);
                 if (r < 0)
                         return r;
 
                 zero(ev);
                 ev.events = 0;
-                ev.data.u32 = FD_FIFO_BASE + s->fifo_fd;
+                ev.data.u32 = FD_OTHER_BASE + s->fifo_fd;
 
                 if (epoll_ctl(s->manager->epoll_fd, EPOLL_CTL_ADD, s->fifo_fd, &ev) < 0)
                         return -errno;
@@ -863,7 +854,7 @@ void session_remove_fifo(Session *s) {
         assert(s);
 
         if (s->fifo_fd >= 0) {
-                assert_se(hashmap_remove(s->manager->fifo_fds, INT_TO_PTR(s->fifo_fd + 1)) == s);
+                assert_se(hashmap_remove(s->manager->session_fds, INT_TO_PTR(s->fifo_fd + 1)) == s);
                 assert_se(epoll_ctl(s->manager->epoll_fd, EPOLL_CTL_DEL, s->fifo_fd, NULL) == 0);
                 close_nointr_nofail(s->fifo_fd);
                 s->fifo_fd = -1;
@@ -917,6 +908,18 @@ void session_add_to_gc_queue(Session *s) {
         s->in_gc_queue = true;
 }
 
+SessionState session_get_state(Session *s) {
+        assert(s);
+
+        if (s->fifo_fd < 0)
+                return SESSION_CLOSING;
+
+        if (session_is_active(s))
+                return SESSION_ACTIVE;
+
+        return SESSION_ONLINE;
+}
+
 int session_kill(Session *s, KillWho who, int signo) {
         int r = 0;
         Set *pid_set = NULL;
@@ -958,6 +961,14 @@ int session_kill(Session *s, KillWho who, int signo) {
         return r;
 }
 
+static const char* const session_state_table[_SESSION_TYPE_MAX] = {
+        [SESSION_ONLINE] = "online",
+        [SESSION_ACTIVE] = "active",
+        [SESSION_CLOSING] = "closing"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(session_state, SessionState);
+
 static const char* const session_type_table[_SESSION_TYPE_MAX] = {
         [SESSION_TTY] = "tty",
         [SESSION_X11] = "x11",