diff options
Diffstat (limited to 'src/journal/journald-native.c')
| -rw-r--r-- | src/journal/journald-native.c | 50 |
1 files changed, 28 insertions, 22 deletions
diff --git a/src/journal/journald-native.c b/src/journal/journald-native.c index f878dfc911..c50cf64f5c 100644 --- a/src/journal/journald-native.c +++ b/src/journal/journald-native.c @@ -71,6 +71,10 @@ static bool valid_user_field(const char *p, size_t l) { return true; } +static bool allow_object_pid(struct ucred *ucred) { + return ucred && ucred->uid == 0; +} + void server_process_native_message( Server *s, const void *buffer, size_t buffer_size, @@ -79,11 +83,12 @@ void server_process_native_message( const char *label, size_t label_len) { struct iovec *iovec = NULL; - unsigned n = 0, m = 0, j, tn = (unsigned) -1; + unsigned n = 0, j, tn = (unsigned) -1; const char *p; - size_t remaining; + size_t remaining, m = 0; int priority = LOG_INFO; char *identifier = NULL, *message = NULL; + pid_t object_pid = 0; assert(s); assert(buffer || buffer_size == 0); @@ -104,7 +109,7 @@ void server_process_native_message( if (e == p) { /* Entry separator */ - server_dispatch_message(s, iovec, n, m, ucred, tv, label, label_len, NULL, priority); + server_dispatch_message(s, iovec, n, m, ucred, tv, label, label_len, NULL, priority, object_pid); n = 0; priority = LOG_INFO; @@ -124,19 +129,10 @@ void server_process_native_message( /* A property follows */ /* n received properties, +1 for _TRANSPORT */ - if (n + 1 + N_IOVEC_META_FIELDS >= m) { - struct iovec *c; - unsigned u; - - u = MAX((n + 1 + N_IOVEC_META_FIELDS) * 2U, 4U); - c = realloc(iovec, u * sizeof(struct iovec)); - if (!c) { - log_oom(); - break; - } - - iovec = c; - m = u; + if (!GREEDY_REALLOC(iovec, m, n + 1 + N_IOVEC_META_FIELDS + + !!object_pid * N_IOVEC_OBJECT_FIELDS)) { + log_oom(); + break; } q = memchr(p, '=', e - p); @@ -158,23 +154,23 @@ void server_process_native_message( * of this entry for the rate limiting * logic */ if (l == 10 && - memcmp(p, "PRIORITY=", 9) == 0 && + startswith(p, "PRIORITY=") && p[9] >= '0' && p[9] <= '9') priority = (priority & LOG_FACMASK) | (p[9] - '0'); else if (l == 17 && - memcmp(p, "SYSLOG_FACILITY=", 16) == 0 && + startswith(p, "SYSLOG_FACILITY=") && p[16] >= '0' && p[16] <= '9') priority = (priority & LOG_PRIMASK) | ((p[16] - '0') << 3); else if (l == 18 && - memcmp(p, "SYSLOG_FACILITY=", 16) == 0 && + startswith(p, "SYSLOG_FACILITY=") && 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 >= 19 && - memcmp(p, "SYSLOG_IDENTIFIER=", 18) == 0) { + startswith(p, "SYSLOG_IDENTIFIER=")) { char *t; t = strndup(p + 18, l - 18); @@ -183,7 +179,7 @@ void server_process_native_message( identifier = t; } } else if (l >= 8 && - memcmp(p, "MESSAGE=", 8) == 0) { + startswith(p, "MESSAGE=")) { char *t; t = strndup(p + 8, l - 8); @@ -191,6 +187,16 @@ void server_process_native_message( free(message); message = t; } + } else if (l > strlen("OBJECT_PID=") && + l < strlen("OBJECT_PID=") + DECIMAL_STR_MAX(pid_t) && + startswith(p, "OBJECT_PID=") && + allow_object_pid(ucred)) { + char buf[DECIMAL_STR_MAX(pid_t)]; + memcpy(buf, p + strlen("OBJECT_PID="), l - strlen("OBJECT_PID=")); + char_array_0(buf); + + /* ignore error */ + parse_pid(buf, &object_pid); } } @@ -260,7 +266,7 @@ void server_process_native_message( server_forward_console(s, priority, identifier, message, ucred); } - server_dispatch_message(s, iovec, n, m, ucred, tv, label, label_len, NULL, priority); + server_dispatch_message(s, iovec, n, m, ucred, tv, label, label_len, NULL, priority, object_pid); finish: for (j = 0; j < n; j++) { |