journal-remote: implement inheriting http(s) sockets

[elogind.git] / src / journal / journald-server.c

diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index 868065075923d75a2b93d4e794fefb03c17ad5c8..ef39d0a60203c4a2b217ec862ba57b6c618cea43 100644 (file)
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -295,6 +295,27 @@ static JournalFile* find_journal(Server *s, uid_t uid) {
         return f;
 }
 
+static int do_rotate(Server *s, JournalFile **f, const char* name,
+                     bool seal, uint32_t uid) {
+        int r;
+        assert(s);
+
+        if (!*f)
+                return -EINVAL;
+
+        r = journal_file_rotate(f, s->compress, seal);
+        if (r < 0)
+                if (*f)
+                        log_error("Failed to rotate %s: %s",
+                                  (*f)->path, strerror(-r));
+                else
+                        log_error("Failed to create new %s journal: %s",
+                                  name, strerror(-r));
+        else
+                server_fix_perms(s, *f, uid);
+        return r;
+}
+
 void server_rotate(Server *s) {
         JournalFile *f;
         void *k;
@@ -303,42 +324,16 @@ void server_rotate(Server *s) {
 
         log_debug("Rotating...");
 
-        if (s->runtime_journal) {
-                r = journal_file_rotate(&s->runtime_journal, s->compress, false);
-                if (r < 0)
-                        if (s->runtime_journal)
-                                log_error("Failed to rotate %s: %s", s->runtime_journal->path, strerror(-r));
-                        else
-                                log_error("Failed to create new runtime journal: %s", strerror(-r));
-                else
-                        server_fix_perms(s, s->runtime_journal, 0);
-        }
-
-        if (s->system_journal) {
-                r = journal_file_rotate(&s->system_journal, s->compress, s->seal);
-                if (r < 0)
-                        if (s->system_journal)
-                                log_error("Failed to rotate %s: %s", s->system_journal->path, strerror(-r));
-                        else
-                                log_error("Failed to create new system journal: %s", strerror(-r));
-
-                else
-                        server_fix_perms(s, s->system_journal, 0);
-        }
+        do_rotate(s, &s->runtime_journal, "runtime", false, 0);
+        do_rotate(s, &s->system_journal, "system", s->seal, 0);
 
         HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {
-                r = journal_file_rotate(&f, s->compress, s->seal);
-                if (r < 0)
-                        if (f)
-                                log_error("Failed to rotate %s: %s", f->path, strerror(-r));
-                        else {
-                                log_error("Failed to create user journal: %s", strerror(-r));
-                                hashmap_remove(s->user_journals, k);
-                        }
-                else {
+                r = do_rotate(s, &f, "user", s->seal, PTR_TO_UINT32(k));
+                if (r >= 0)
                         hashmap_replace(s->user_journals, k, f);
-                        server_fix_perms(s, f, PTR_TO_UINT32(k));
-                }
+                else if (!f)
+                        /* Old file has been closed and deallocated */
+                        hashmap_remove(s->user_journals, k);
         }
 }
 
@@ -369,6 +364,20 @@ void server_sync(Server *s) {
         s->sync_scheduled = false;
 }
 
+static void do_vacuum(Server *s, char *ids, JournalFile *f, const char* path,
+                      JournalMetrics *metrics) {
+        char *p;
+        int r;
+
+        if (!f)
+                return;
+
+        p = strappenda(path, ids);
+        r = journal_directory_vacuum(p, metrics->max_use, s->max_retention_usec, &s->oldest_file_usec);
+        if (r < 0 && r != -ENOENT)
+                log_error("Failed to vacuum %s: %s", p, strerror(-r));
+}
+
 void server_vacuum(Server *s) {
         char ids[33];
         sd_id128_t machine;
@@ -383,24 +392,10 @@ void server_vacuum(Server *s) {
                 log_error("Failed to get machine ID: %s", strerror(-r));
                 return;
         }
-
         sd_id128_to_string(machine, ids);
 
-        if (s->system_journal) {
-                char *p = strappenda("/var/log/journal/", ids);
-
-                r = journal_directory_vacuum(p, s->system_metrics.max_use, s->max_retention_usec, &s->oldest_file_usec);
-                if (r < 0 && r != -ENOENT)
-                        log_error("Failed to vacuum %s: %s", p, strerror(-r));
-        }
-
-        if (s->runtime_journal) {
-                char *p = strappenda("/run/log/journal/", ids);
-
-                r = journal_directory_vacuum(p, s->runtime_metrics.max_use, s->max_retention_usec, &s->oldest_file_usec);
-                if (r < 0 && r != -ENOENT)
-                        log_error("Failed to vacuum %s: %s", p, strerror(-r));
-        }
+        do_vacuum(s, ids, s->system_journal, "/var/log/journal/", &s->system_metrics);
+        do_vacuum(s, ids, s->runtime_journal, "/run/log/journal/", &s->runtime_metrics);
 
         s->cached_available_space_timestamp = 0;
 }
@@ -686,7 +681,7 @@ static void dispatch_message_real(
 #ifdef HAVE_SELINUX
                 if (use_selinux()) {
                         if (label) {
-                                x = alloca(sizeof("_SELINUX_CONTEXT=") + label_len);
+                                x = alloca(strlen("_SELINUX_CONTEXT=") + label_len + 1);
 
                                 *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0;
                                 IOVEC_SET_STRING(iovec[n++], x);
@@ -1319,6 +1314,12 @@ static int server_parse_proc_cmdline(Server *s) {
                                 log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36);
                         else
                                 s->forward_to_console = r;
+                } else if (startswith(word, "systemd.journald.forward_to_wall=")) {
+                        r = parse_boolean(word + 33);
+                        if (r < 0)
+                                log_warning("Failed to parse forward to wall switch %s. Ignoring.", word + 33);
+                        else
+                                s->forward_to_wall = r;
                 } else if (startswith(word, "systemd.journald"))
                         log_warning("Invalid systemd.journald parameter. Ignoring.");
         }
@@ -1466,11 +1467,13 @@ int server_init(Server *s) {
         s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST;
 
         s->forward_to_syslog = true;
+        s->forward_to_wall = true;
 
         s->max_level_store = LOG_DEBUG;
         s->max_level_syslog = LOG_DEBUG;
         s->max_level_kmsg = LOG_NOTICE;
         s->max_level_console = LOG_INFO;
+        s->max_level_wall = LOG_EMERG;
 
         memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics));
         memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics));