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path: root/src/journal/journald.c
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Diffstat (limited to 'src/journal/journald.c')
-rw-r--r--src/journal/journald.c671
1 files changed, 493 insertions, 178 deletions
diff --git a/src/journal/journald.c b/src/journal/journald.c
index 68c1c23cdf..d6206a802f 100644
--- a/src/journal/journald.c
+++ b/src/journal/journald.c
@@ -44,6 +44,7 @@
#include "sd-login.h"
#include "journal-internal.h"
#include "conf-parser.h"
+#include "sd-messages.h"
#include "journald.h"
#define USER_JOURNALS_MAX 1024
@@ -58,11 +59,15 @@
#define SYSLOG_TIMEOUT_USEC (5*USEC_PER_SEC)
+#define N_IOVEC_META_FIELDS 16
+
typedef enum StdoutStreamState {
STDOUT_STREAM_TAG,
STDOUT_STREAM_PRIORITY,
STDOUT_STREAM_PRIORITY_PREFIX,
- STDOUT_STREAM_TEE_CONSOLE,
+ STDOUT_STREAM_FORWARD_TO_SYSLOG,
+ STDOUT_STREAM_FORWARD_TO_KMSG,
+ STDOUT_STREAM_FORWARD_TO_CONSOLE,
STDOUT_STREAM_RUNNING
} StdoutStreamState;
@@ -77,7 +82,9 @@ struct StdoutStream {
char *tag;
int priority;
bool priority_prefix:1;
- bool tee_console:1;
+ bool forward_to_syslog:1;
+ bool forward_to_kmsg:1;
+ bool forward_to_console:1;
char buffer[LINE_MAX+1];
size_t length;
@@ -412,7 +419,7 @@ static void dispatch_message_real(Server *s,
assert(s);
assert(iovec);
assert(n > 0);
- assert(n + 16 <= m);
+ assert(n + N_IOVEC_META_FIELDS <= m);
if (ucred) {
uint32_t audit;
@@ -567,6 +574,38 @@ retry:
free(unit);
}
+static void driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {
+ char mid[11 + 32 + 1];
+ char buffer[16 + LINE_MAX + 1];
+ struct iovec iovec[N_IOVEC_META_FIELDS + 3];
+ int n = 0;
+ va_list ap;
+ struct ucred ucred;
+
+ assert(s);
+ assert(format);
+
+ IOVEC_SET_STRING(iovec[n++], "PRIORITY=5");
+
+ memcpy(buffer, "MESSAGE=", 8);
+ va_start(ap, format);
+ vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap);
+ va_end(ap);
+ char_array_0(buffer);
+ IOVEC_SET_STRING(iovec[n++], buffer);
+
+ snprintf(mid, sizeof(mid), "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(message_id));
+ char_array_0(mid);
+ IOVEC_SET_STRING(iovec[n++], mid);
+
+ zero(ucred);
+ ucred.pid = getpid();
+ ucred.uid = getuid();
+ ucred.gid = getgid();
+
+ dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL);
+}
+
static void dispatch_message(Server *s,
struct iovec *iovec, unsigned n, unsigned m,
struct ucred *ucred,
@@ -604,62 +643,354 @@ static void dispatch_message(Server *s,
}
}
- rl = journal_rate_limit_test(s->rate_limit, path, priority, available_space(s));
+ rl = journal_rate_limit_test(s->rate_limit, path, priority & LOG_PRIMASK, available_space(s));
if (rl == 0) {
free(path);
return;
}
- if (rl > 1) {
- int j = 0;
- char suppress_message[LINE_MAX];
- struct iovec suppress_iovec[18];
+ /* Write a suppression message if we suppressed something */
+ if (rl > 1)
+ driver_message(s, SD_MESSAGE_JOURNAL_DROPPED, "Suppressed %u messages from %s", rl - 1, path);
+
+ free(path);
+
+finish:
+ dispatch_message_real(s, iovec, n, m, ucred, tv);
+}
+
+static void forward_syslog_iovec(Server *s, const struct iovec *iovec, unsigned n_iovec, struct ucred *ucred, struct timeval *tv) {
+ struct msghdr msghdr;
+ struct cmsghdr *cmsg;
+ union {
+ struct cmsghdr cmsghdr;
+ uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
+ } control;
+ union sockaddr_union sa;
+
+ assert(s);
+ assert(iovec);
+ assert(n_iovec > 0);
+
+ zero(msghdr);
+ msghdr.msg_iov = (struct iovec*) iovec;
+ msghdr.msg_iovlen = n_iovec;
+
+ zero(sa);
+ sa.un.sun_family = AF_UNIX;
+ strncpy(sa.un.sun_path, "/run/systemd/syslog", sizeof(sa.un.sun_path));
+ msghdr.msg_name = &sa;
+ msghdr.msg_namelen = offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path);
+
+ if (ucred) {
+ zero(control);
+ msghdr.msg_control = &control;
+ msghdr.msg_controllen = sizeof(control);
+
+ cmsg = CMSG_FIRSTHDR(&msghdr);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_CREDENTIALS;
+ cmsg->cmsg_len = CMSG_LEN(sizeof(struct ucred));
+ memcpy(CMSG_DATA(cmsg), ucred, sizeof(struct ucred));
+ msghdr.msg_controllen = cmsg->cmsg_len;
+ }
+
+ /* Forward the syslog message we received via /dev/log to
+ * /run/systemd/syslog. Unfortunately we currently can't set
+ * the SO_TIMESTAMP auxiliary data, and hence we don't. */
- /* Write a suppression message if we suppressed something */
+ if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0)
+ return;
- snprintf(suppress_message, sizeof(suppress_message), "MESSAGE=Suppressed %u messages from %s", rl - 1, path);
- char_array_0(suppress_message);
+ if (ucred && errno == ESRCH) {
+ struct ucred u;
- IOVEC_SET_STRING(suppress_iovec[j++], "PRIORITY=5");
- IOVEC_SET_STRING(suppress_iovec[j++], suppress_message);
+ /* Hmm, presumably the sender process vanished
+ * by now, so let's fix it as good as we
+ * can, and retry */
- dispatch_message_real(s, suppress_iovec, j, ELEMENTSOF(suppress_iovec), NULL, NULL);
+ u = *ucred;
+ u.pid = getpid();
+ memcpy(CMSG_DATA(cmsg), &u, sizeof(struct ucred));
+
+ if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0)
+ return;
}
- free(path);
+ log_debug("Failed to forward syslog message: %m");
+}
+
+static void forward_syslog_raw(Server *s, const char *buffer, struct ucred *ucred, struct timeval *tv) {
+ struct iovec iovec;
+
+ assert(s);
+ assert(buffer);
+
+ IOVEC_SET_STRING(iovec, buffer);
+ forward_syslog_iovec(s, &iovec, 1, ucred, tv);
+}
+
+static void forward_syslog(Server *s, int priority, const char *tag, const char *message, struct ucred *ucred, struct timeval *tv) {
+ struct iovec iovec[5];
+ char header_priority[6], header_time[64], header_pid[16];
+ int n = 0;
+ time_t t;
+ struct tm *tm;
+ char *tag_buf = NULL;
+
+ assert(s);
+ assert(priority >= 0);
+ assert(priority <= 999);
+ assert(message);
+
+ /* First: priority field */
+ snprintf(header_priority, sizeof(header_priority), "<%i>", priority);
+ char_array_0(header_priority);
+ IOVEC_SET_STRING(iovec[n++], header_priority);
+
+ /* Second: timestamp */
+ t = tv ? tv->tv_sec : ((time_t) (now(CLOCK_REALTIME) / USEC_PER_SEC));
+ tm = localtime(&t);
+ if (!tm)
+ return;
+ if (strftime(header_time, sizeof(header_time), "%h %e %T ", tm) <= 0)
+ return;
+ IOVEC_SET_STRING(iovec[n++], header_time);
+
+ /* Third: tag and PID */
+ if (ucred) {
+ if (!tag) {
+ get_process_comm(ucred->pid, &tag_buf);
+ tag = tag_buf;
+ }
+
+ snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
+ char_array_0(header_pid);
+
+ if (tag)
+ IOVEC_SET_STRING(iovec[n++], tag);
+
+ IOVEC_SET_STRING(iovec[n++], header_pid);
+ } else if (tag) {
+ IOVEC_SET_STRING(iovec[n++], tag);
+ IOVEC_SET_STRING(iovec[n++], ": ");
+ }
+
+ /* Fourth: message */
+ IOVEC_SET_STRING(iovec[n++], message);
+
+ forward_syslog_iovec(s, iovec, n, ucred, tv);
+
+ free(tag_buf);
+}
+
+static int fixup_priority(int priority) {
+
+ if ((priority & LOG_FACMASK) == 0)
+ return (priority & LOG_PRIMASK) | LOG_USER;
+
+ return priority;
+}
+
+static void forward_kmsg(Server *s, int priority, const char *tag, const char *message, struct ucred *ucred) {
+ struct iovec iovec[5];
+ char header_priority[6], header_pid[16];
+ int n = 0;
+ char *tag_buf = NULL;
+ int fd;
+
+ assert(s);
+ assert(priority >= 0);
+ assert(priority <= 999);
+ assert(message);
+
+ /* Never allow messages with kernel facility to be written to
+ * kmsg, regardless where the data comes from. */
+ priority = fixup_priority(priority);
+
+ /* First: priority field */
+ snprintf(header_priority, sizeof(header_priority), "<%i>", priority);
+ char_array_0(header_priority);
+ IOVEC_SET_STRING(iovec[n++], header_priority);
+
+ /* Second: tag and PID */
+ if (ucred) {
+ if (!tag) {
+ get_process_comm(ucred->pid, &tag_buf);
+ tag = tag_buf;
+ }
+
+ snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
+ char_array_0(header_pid);
+
+ if (tag)
+ IOVEC_SET_STRING(iovec[n++], tag);
+
+ IOVEC_SET_STRING(iovec[n++], header_pid);
+ } else if (tag) {
+ IOVEC_SET_STRING(iovec[n++], tag);
+ IOVEC_SET_STRING(iovec[n++], ": ");
+ }
+
+ /* Fourth: message */
+ IOVEC_SET_STRING(iovec[n++], message);
+ IOVEC_SET_STRING(iovec[n++], "\n");
+
+ fd = open("/dev/kmsg", O_WRONLY|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0) {
+ log_debug("Failed to open /dev/kmsg for logging: %s", strerror(errno));
+ goto finish;
+ }
+
+ if (writev(fd, iovec, n) < 0)
+ log_debug("Failed to write to /dev/kmsg for logging: %s", strerror(errno));
+
+ close_nointr_nofail(fd);
finish:
- dispatch_message_real(s, iovec, n, m, ucred, tv);
+ free(tag_buf);
+}
+
+static void forward_console(Server *s, const char *tag, const char *message, struct ucred *ucred) {
+ struct iovec iovec[4];
+ char header_pid[16];
+ int n = 0, fd;
+ char *tag_buf = NULL;
+
+ assert(s);
+ assert(message);
+
+ /* First: tag and PID */
+ if (ucred) {
+ if (!tag) {
+ get_process_comm(ucred->pid, &tag_buf);
+ tag = tag_buf;
+ }
+
+ snprintf(header_pid, sizeof(header_pid), "[%lu]: ", (unsigned long) ucred->pid);
+ char_array_0(header_pid);
+
+ if (tag)
+ IOVEC_SET_STRING(iovec[n++], tag);
+
+ IOVEC_SET_STRING(iovec[n++], header_pid);
+ } else if (tag) {
+ IOVEC_SET_STRING(iovec[n++], tag);
+ IOVEC_SET_STRING(iovec[n++], ": ");
+ }
+
+ /* Third: message */
+ IOVEC_SET_STRING(iovec[n++], message);
+ IOVEC_SET_STRING(iovec[n++], "\n");
+
+ fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0) {
+ log_debug("Failed to open /dev/console for logging: %s", strerror(errno));
+ goto finish;
+ }
+
+ if (writev(fd, iovec, n) < 0)
+ log_debug("Failed to write to /dev/console for logging: %s", strerror(errno));
+
+ close_nointr_nofail(fd);
+
+finish:
+ free(tag_buf);
+}
+
+static void read_tag(const char **buf, char **tag) {
+ const char *p;
+ char *t;
+ size_t l, e;
+
+ assert(buf);
+ assert(tag);
+
+ p = *buf;
+
+ p += strspn(p, WHITESPACE);
+ l = strcspn(p, WHITESPACE);
+
+ if (l <= 0 ||
+ p[l-1] != ':')
+ return;
+
+ e = l;
+ l--;
+
+ if (p[l-1] == ']') {
+ size_t k = l-1;
+
+ for (;;) {
+
+ if (p[k] == '[') {
+ l = k;
+ break;
+ }
+
+ if (k == 0)
+ break;
+
+ k--;
+ }
+ }
+
+ t = strndup(p, l);
+ if (t)
+ *tag = t;
+
+ *buf = p + e;
+ *buf += strspn(*buf, WHITESPACE);
}
static void process_syslog_message(Server *s, const char *buf, struct ucred *ucred, struct timeval *tv) {
- char *message = NULL, *syslog_priority = NULL, *syslog_facility = NULL;
- struct iovec iovec[19];
+ char *message = NULL, *syslog_priority = NULL, *syslog_facility = NULL, *syslog_tag = NULL;
+ struct iovec iovec[N_IOVEC_META_FIELDS + 4];
unsigned n = 0;
int priority = LOG_USER | LOG_INFO;
+ char *tag = NULL;
assert(s);
assert(buf);
+ if (s->forward_to_syslog)
+ forward_syslog_raw(s, buf, ucred, tv);
+
parse_syslog_priority((char**) &buf, &priority);
skip_syslog_date((char**) &buf);
+ read_tag(&buf, &tag);
+
+ if (s->forward_to_kmsg)
+ forward_kmsg(s, priority, tag, buf, ucred);
+
+ if (s->forward_to_console)
+ forward_console(s, tag, buf, ucred);
if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0)
IOVEC_SET_STRING(iovec[n++], syslog_priority);
- if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
- IOVEC_SET_STRING(iovec[n++], syslog_facility);
+ if (priority & LOG_FACMASK)
+ if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
+ IOVEC_SET_STRING(iovec[n++], syslog_facility);
+
+ if (tag) {
+ syslog_tag = strappend("SYSLOG_TAG=", tag);
+ if (syslog_tag)
+ IOVEC_SET_STRING(iovec[n++], syslog_tag);
+ }
message = strappend("MESSAGE=", buf);
if (message)
IOVEC_SET_STRING(iovec[n++], message);
- dispatch_message(s, iovec, n, ELEMENTSOF(iovec), ucred, tv, priority & LOG_PRIMASK);
+ dispatch_message(s, iovec, n, ELEMENTSOF(iovec), ucred, tv, priority);
free(message);
- free(syslog_facility);
+ free(tag);
free(syslog_priority);
+ free(syslog_facility);
+ free(syslog_tag);
}
static bool valid_user_field(const char *p, size_t l) {
@@ -703,6 +1034,7 @@ static void process_native_message(Server *s, const void *buffer, size_t buffer_
const char *p;
size_t remaining;
int priority = LOG_INFO;
+ char *tag = NULL, *message = NULL;
assert(s);
assert(buffer || n == 0);
@@ -742,11 +1074,11 @@ static void process_native_message(Server *s, const void *buffer, size_t buffer_
/* A property follows */
- if (n+16 >= m) {
+ if (n+N_IOVEC_META_FIELDS >= m) {
struct iovec *c;
unsigned u;
- u = MAX((n+16U) * 2U, 4U);
+ u = MAX((n+N_IOVEC_META_FIELDS) * 2U, 4U);
c = realloc(iovec, u * sizeof(struct iovec));
if (!c) {
log_error("Out of memory");
@@ -760,22 +1092,56 @@ static void process_native_message(Server *s, const void *buffer, size_t buffer_
q = memchr(p, '=', e - p);
if (q) {
if (valid_user_field(p, q - p)) {
+ size_t l;
+
+ l = e - p;
+
/* If the field name starts with an
* underscore, skip the variable,
* since that indidates a trusted
* field */
iovec[n].iov_base = (char*) p;
- iovec[n].iov_len = e - p;
+ iovec[n].iov_len = l;
n++;
/* We need to determine the priority
* of this entry for the rate limiting
* logic */
- if (e - p == 10 &&
- memcmp(p, "PRIORITY=", 10) == 0 &&
- p[10] >= '0' &&
- p[10] <= '9')
- priority = p[10] - '0';
+ if (l == 10 &&
+ memcmp(p, "PRIORITY=", 9) == 0 &&
+ p[9] >= '0' && p[9] <= '9')
+ priority = (priority & LOG_FACMASK) | (p[9] - '0');
+
+ else if (l == 17 &&
+ memcmp(p, "SYSLOG_FACILITY=", 16) == 0 &&
+ p[16] >= '0' && p[16] <= '9')
+ priority = (priority & LOG_PRIMASK) | ((p[16] - '0') << 3);
+
+ else if (l == 18 &&
+ memcmp(p, "SYSLOG_FACILITY=", 16) == 0 &&
+ p[16] >= '0' && p[16] <= '9' &&
+ p[17] >= '0' && p[17] <= '9')
+ priority = (priority & LOG_PRIMASK) | (((p[16] - '0')*10 + (p[17] - '0')) << 3);
+
+ else if (l >= 12 &&
+ memcmp(p, "SYSLOG_TAG=", 11) == 0) {
+ char *t;
+
+ t = strndup(p + 11, l - 11);
+ if (t) {
+ free(tag);
+ tag = t;
+ }
+ } else if (l >= 8 &&
+ memcmp(p, "MESSAGE=", 8) == 0) {
+ char *t;
+
+ t = strndup(p + 8, l - 8);
+ if (t) {
+ free(message);
+ message = t;
+ }
+ }
}
remaining -= (e - p) + 1;
@@ -821,19 +1187,32 @@ static void process_native_message(Server *s, const void *buffer, size_t buffer_
}
}
+ if (message) {
+ if (s->forward_to_syslog)
+ forward_syslog(s, priority, tag, message, ucred, tv);
+
+ if (s->forward_to_kmsg)
+ forward_kmsg(s, priority, tag, message, ucred);
+
+ if (s->forward_to_console)
+ forward_console(s, tag, message, ucred);
+ }
+
dispatch_message(s, iovec, n, m, ucred, tv, priority);
for (j = 0; j < n; j++)
if (iovec[j].iov_base < buffer ||
(const uint8_t*) iovec[j].iov_base >= (const uint8_t*) buffer + buffer_size)
free(iovec[j].iov_base);
+
+ free(tag);
+ free(message);
}
-static int stdout_stream_log(StdoutStream *s, const char *p, size_t l) {
- struct iovec iovec[18];
- char *message = NULL, *syslog_priority = NULL;
+static int stdout_stream_log(StdoutStream *s, const char *p) {
+ struct iovec iovec[N_IOVEC_META_FIELDS + 4];
+ char *message = NULL, *syslog_priority = NULL, *syslog_facility = NULL, *syslog_tag = NULL;
unsigned n = 0;
- size_t tag_len;
int priority;
assert(s);
@@ -841,127 +1220,121 @@ static int stdout_stream_log(StdoutStream *s, const char *p, size_t l) {
priority = s->priority;
- if (s->priority_prefix &&
- l > 3 &&
- p[0] == '<' &&
- p[1] >= '0' && p[1] <= '7' &&
- p[2] == '>') {
+ if (s->priority_prefix)
+ parse_syslog_priority((char**) &p, &priority);
- priority = p[1] - '0';
- p += 3;
- l -= 3;
- }
+ if (s->forward_to_syslog || s->server->forward_to_syslog)
+ forward_syslog(s->server, fixup_priority(priority), s->tag, p, &s->ucred, NULL);
- if (l <= 0)
- return 0;
+ if (s->forward_to_kmsg || s->server->forward_to_kmsg)
+ forward_kmsg(s->server, priority, s->tag, p, &s->ucred);
- if (asprintf(&syslog_priority, "PRIORITY=%i", priority) >= 0)
+ if (s->forward_to_console || s->server->forward_to_console)
+ forward_console(s->server, s->tag, p, &s->ucred);
+
+ if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0)
IOVEC_SET_STRING(iovec[n++], syslog_priority);
- tag_len = s->tag ? strlen(s->tag) + 2: 0;
- message = malloc(8 + tag_len + l);
- if (message) {
- memcpy(message, "MESSAGE=", 8);
+ if (priority & LOG_FACMASK)
+ if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
+ IOVEC_SET_STRING(iovec[n++], syslog_facility);
- if (s->tag) {
- memcpy(message+8, s->tag, tag_len-2);
- memcpy(message+8+tag_len-2, ": ", 2);
- }
-
- memcpy(message+8+tag_len, p, l);
- iovec[n].iov_base = message;
- iovec[n].iov_len = 8+tag_len+l;
- n++;
+ if (s->tag) {
+ syslog_tag = strappend("SYSLOG_TAG=", s->tag);
+ if (syslog_tag)
+ IOVEC_SET_STRING(iovec[n++], syslog_tag);
}
- dispatch_message(s->server, iovec, n, ELEMENTSOF(iovec), &s->ucred, NULL, priority);
-
- if (s->tee_console) {
- int console;
-
- console = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
- if (console >= 0) {
- n = 0;
- if (s->tag) {
- IOVEC_SET_STRING(iovec[n++], s->tag);
- IOVEC_SET_STRING(iovec[n++], ": ");
- }
-
- iovec[n].iov_base = (void*) p;
- iovec[n].iov_len = l;
- n++;
-
- IOVEC_SET_STRING(iovec[n++], (char*) "\n");
+ message = strappend("MESSAGE=", p);
+ if (message)
+ IOVEC_SET_STRING(iovec[n++], message);
- writev(console, iovec, n);
- }
- }
+ dispatch_message(s->server, iovec, n, ELEMENTSOF(iovec), &s->ucred, NULL, priority);
free(message);
free(syslog_priority);
+ free(syslog_facility);
+ free(syslog_tag);
return 0;
}
-static int stdout_stream_line(StdoutStream *s, const char *p, size_t l) {
+static int stdout_stream_line(StdoutStream *s, char *p) {
+ int r;
+
assert(s);
assert(p);
- while (l > 0 && strchr(WHITESPACE, *p)) {
- l--;
- p++;
- }
-
- while (l > 0 && strchr(WHITESPACE, *(p+l-1)))
- l--;
+ p = strstrip(p);
switch (s->state) {
case STDOUT_STREAM_TAG:
-
- if (l > 0) {
- s->tag = strndup(p, l);
- if (!s->tag) {
- log_error("Out of memory");
- return -EINVAL;
- }
+ s->tag = strdup(p);
+ if (!s->tag) {
+ log_error("Out of memory");
+ return -ENOMEM;
}
s->state = STDOUT_STREAM_PRIORITY;
return 0;
case STDOUT_STREAM_PRIORITY:
- if (l != 1 || *p < '0' || *p > '7') {
+ r = safe_atoi(p, &s->priority);
+ if (r < 0 || s->priority <= 0 || s->priority >= 999) {
log_warning("Failed to parse log priority line.");
return -EINVAL;
}
- s->priority = *p - '0';
s->state = STDOUT_STREAM_PRIORITY_PREFIX;
return 0;
case STDOUT_STREAM_PRIORITY_PREFIX:
- if (l != 1 || *p < '0' || *p > '1') {
+ r = parse_boolean(p);
+ if (r < 0) {
log_warning("Failed to parse priority prefix line.");
return -EINVAL;
}
- s->priority_prefix = *p - '0';
- s->state = STDOUT_STREAM_TEE_CONSOLE;
+ s->priority_prefix = !!r;
+ s->state = STDOUT_STREAM_FORWARD_TO_SYSLOG;
return 0;
- case STDOUT_STREAM_TEE_CONSOLE:
- if (l != 1 || *p < '0' || *p > '1') {
- log_warning("Failed to parse tee to console line.");
+ case STDOUT_STREAM_FORWARD_TO_SYSLOG:
+ r = parse_boolean(p);
+ if (r < 0) {
+ log_warning("Failed to parse forward to syslog line.");
return -EINVAL;
}
- s->tee_console = *p - '0';
+ s->forward_to_syslog = !!r;
+ s->state = STDOUT_STREAM_FORWARD_TO_KMSG;
+ return 0;
+
+ case STDOUT_STREAM_FORWARD_TO_KMSG:
+ r = parse_boolean(p);
+ if (r < 0) {
+ log_warning("Failed to parse copy to kmsg line.");
+ return -EINVAL;
+ }
+
+ s->forward_to_kmsg = !!r;
+ s->state = STDOUT_STREAM_FORWARD_TO_CONSOLE;
+ return 0;
+
+ case STDOUT_STREAM_FORWARD_TO_CONSOLE:
+ r = parse_boolean(p);
+ if (r < 0) {
+ log_warning("Failed to parse copy to console line.");
+ return -EINVAL;
+ }
+
+ s->forward_to_console = !!r;
s->state = STDOUT_STREAM_RUNNING;
return 0;
case STDOUT_STREAM_RUNNING:
- return stdout_stream_log(s, p, l);
+ return stdout_stream_log(s, p);
}
assert_not_reached("Unknown stream state");
@@ -981,16 +1354,17 @@ static int stdout_stream_scan(StdoutStream *s, bool force_flush) {
size_t skip;
end = memchr(p, '\n', remaining);
- if (!end) {
- if (remaining >= LINE_MAX) {
- end = p + LINE_MAX;
- skip = LINE_MAX;
- } else
- break;
- } else
+ if (end)
skip = end - p + 1;
+ else if (remaining >= sizeof(s->buffer) - 1) {
+ end = p + sizeof(s->buffer) - 1;
+ skip = sizeof(s->buffer) - 1;
+ } else
+ break;
+
+ *end = 0;
- r = stdout_stream_line(s, p, end - p);
+ r = stdout_stream_line(s, p);
if (r < 0)
return r;
@@ -999,7 +1373,8 @@ static int stdout_stream_scan(StdoutStream *s, bool force_flush) {
}
if (force_flush && remaining > 0) {
- r = stdout_stream_line(s, p, remaining);
+ p[remaining] = 0;
+ r = stdout_stream_line(s, p);
if (r < 0)
return r;
@@ -1307,69 +1682,6 @@ finish:
return r;
}
-static void forward_syslog(Server *s, const void *buffer, size_t length, struct ucred *ucred, struct timeval *tv) {
- struct msghdr msghdr;
- struct iovec iovec;
- struct cmsghdr *cmsg;
- union {
- struct cmsghdr cmsghdr;
- uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +
- CMSG_SPACE(sizeof(struct timeval))];
- } control;
- union sockaddr_union sa;
-
- assert(s);
-
- zero(msghdr);
-
- zero(iovec);
- iovec.iov_base = (void*) buffer;
- iovec.iov_len = length;
- msghdr.msg_iov = &iovec;
- msghdr.msg_iovlen = 1;
-
- zero(sa);
- sa.un.sun_family = AF_UNIX;
- strncpy(sa.un.sun_path, "/run/systemd/syslog", sizeof(sa.un.sun_path));
- msghdr.msg_name = &sa;
- msghdr.msg_namelen = offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path);
-
- zero(control);
- msghdr.msg_control = &control;
- msghdr.msg_controllen = sizeof(control);
-
- cmsg = CMSG_FIRSTHDR(&msghdr);
- cmsg->cmsg_level = SOL_SOCKET;
- cmsg->cmsg_type = SCM_CREDENTIALS;
- cmsg->cmsg_len = CMSG_LEN(sizeof(struct ucred));
- memcpy(CMSG_DATA(cmsg), ucred, sizeof(struct ucred));
- msghdr.msg_controllen = cmsg->cmsg_len;
-
- /* Forward the syslog message we received via /dev/log to
- * /run/systemd/syslog. Unfortunately we currently can't set
- * the SO_TIMESTAMP auxiliary data, and hence we don't. */
-
- if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0)
- return;
-
- if (errno == ESRCH) {
- struct ucred u;
-
- /* Hmm, presumably the sender process vanished
- * by now, so let's fix it as good as we
- * can, and retry */
-
- u = *ucred;
- u.pid = getpid();
- memcpy(CMSG_DATA(cmsg), &u, sizeof(struct ucred));
-
- if (sendmsg(s->syslog_fd, &msghdr, MSG_NOSIGNAL) >= 0)
- return;
- }
-
- log_debug("Failed to forward syslog message: %m");
-}
-
static int process_event(Server *s, struct epoll_event *ev) {
assert(s);
@@ -1490,7 +1802,6 @@ static int process_event(Server *s, struct epoll_event *ev) {
else
s->buffer[n] = 0;
- forward_syslog(s, s->buffer, n, ucred, tv);
process_syslog_message(s, strstrip(s->buffer), ucred, tv);
} else
process_native_message(s, s->buffer, n, ucred, tv);
@@ -1767,6 +2078,8 @@ static int server_init(Server *s) {
s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL;
s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST;
+ s->forward_to_syslog = true;
+
memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics));
memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics));
@@ -1919,6 +2232,7 @@ int main(int argc, char *argv[]) {
server_flush_to_var(&server);
log_debug("systemd-journald running as pid %lu", (unsigned long) getpid());
+ driver_message(&server, SD_MESSAGE_JOURNAL_START, "Journal started");
sd_notify(false,
"READY=1\n"
@@ -1947,6 +2261,7 @@ int main(int argc, char *argv[]) {
}
log_debug("systemd-journald stopped as pid %lu", (unsigned long) getpid());
+ driver_message(&server, SD_MESSAGE_JOURNAL_STOP, "Journal stopped");
finish:
sd_notify(false,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-17 06:43:22 +0000