static void test_syslog_parse_identifier(const char* str, const char *ident, const char*pid, int ret) { const char *buf = str; char *ident2 = NULL, *pid2 = NULL; int ret2; ret2 = syslog_parse_identifier(&buf, &ident2, &pid2); assert(ret == ret2); assert(ident==ident2 || streq(ident, ident2)); assert(pid==pid2 || streq(pid, pid2)); }
static void dev_kmsg_record(Server *s, const char *p, size_t l) { _cleanup_free_ char *message = NULL, *syslog_priority = NULL, *syslog_pid = NULL, *syslog_facility = NULL, *syslog_identifier = NULL, *source_time = NULL, *identifier = NULL, *pid = NULL; struct iovec iovec[N_IOVEC_META_FIELDS + 7 + N_IOVEC_KERNEL_FIELDS + 2 + N_IOVEC_UDEV_FIELDS]; char *kernel_device = NULL; unsigned long long usec; size_t n = 0, z = 0, j; int priority, r; char *e, *f, *k; uint64_t serial; size_t pl; assert(s); assert(p); if (l <= 0) return; e = memchr(p, ',', l); if (!e) return; *e = 0; r = safe_atoi(p, &priority); if (r < 0 || priority < 0 || priority > 999) return; if (s->forward_to_kmsg && (priority & LOG_FACMASK) != LOG_KERN) return; l -= (e - p) + 1; p = e + 1; e = memchr(p, ',', l); if (!e) return; *e = 0; r = safe_atou64(p, &serial); if (r < 0) return; if (s->kernel_seqnum) { /* We already read this one? */ if (serial < *s->kernel_seqnum) return; /* Did we lose any? */ if (serial > *s->kernel_seqnum) server_driver_message(s, 0, "MESSAGE_ID=" SD_MESSAGE_JOURNAL_MISSED_STR, LOG_MESSAGE("Missed %"PRIu64" kernel messages", serial - *s->kernel_seqnum), NULL); /* Make sure we never read this one again. Note that * we always store the next message serial we expect * here, simply because this makes handling the first * message with serial 0 easy. */ *s->kernel_seqnum = serial + 1; } l -= (e - p) + 1; p = e + 1; f = memchr(p, ';', l); if (!f) return; /* Kernel 3.6 has the flags field, kernel 3.5 lacks that */ e = memchr(p, ',', l); if (!e || f < e) e = f; *e = 0; r = safe_atollu(p, &usec); if (r < 0) return; l -= (f - p) + 1; p = f + 1; e = memchr(p, '\n', l); if (!e) return; *e = 0; pl = e - p; l -= (e - p) + 1; k = e + 1; for (j = 0; l > 0 && j < N_IOVEC_KERNEL_FIELDS; j++) { char *m; /* Metadata fields attached */ if (*k != ' ') break; k++, l--; e = memchr(k, '\n', l); if (!e) return; *e = 0; if (cunescape_length_with_prefix(k, e - k, "_KERNEL_", UNESCAPE_RELAX, &m) < 0) break; if (startswith(m, "_KERNEL_DEVICE=")) kernel_device = m + 15; iovec[n++] = IOVEC_MAKE_STRING(m); z++; l -= (e - k) + 1; k = e + 1; } if (kernel_device) { struct udev_device *ud; ud = udev_device_new_from_device_id(s->udev, kernel_device); if (ud) { const char *g; struct udev_list_entry *ll; char *b; g = udev_device_get_devnode(ud); if (g) { b = strappend("_UDEV_DEVNODE=", g); if (b) { iovec[n++] = IOVEC_MAKE_STRING(b); z++; } } g = udev_device_get_sysname(ud); if (g) { b = strappend("_UDEV_SYSNAME=", g); if (b) { iovec[n++] = IOVEC_MAKE_STRING(b); z++; } } j = 0; ll = udev_device_get_devlinks_list_entry(ud); udev_list_entry_foreach(ll, ll) { if (j > N_IOVEC_UDEV_FIELDS) break; g = udev_list_entry_get_name(ll); if (g) { b = strappend("_UDEV_DEVLINK=", g); if (b) { iovec[n++] = IOVEC_MAKE_STRING(b); z++; } } j++; } udev_device_unref(ud); } } if (asprintf(&source_time, "_SOURCE_MONOTONIC_TIMESTAMP=%llu", usec) >= 0) iovec[n++] = IOVEC_MAKE_STRING(source_time); iovec[n++] = IOVEC_MAKE_STRING("_TRANSPORT=kernel"); if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0) iovec[n++] = IOVEC_MAKE_STRING(syslog_priority); if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0) iovec[n++] = IOVEC_MAKE_STRING(syslog_facility); if ((priority & LOG_FACMASK) == LOG_KERN) iovec[n++] = IOVEC_MAKE_STRING("SYSLOG_IDENTIFIER=kernel"); else { pl -= syslog_parse_identifier((const char**) &p, &identifier, &pid); /* Avoid any messages we generated ourselves via * log_info() and friends. */ if (pid && is_us(pid)) goto finish; if (identifier) { syslog_identifier = strappend("SYSLOG_IDENTIFIER=", identifier); if (syslog_identifier) iovec[n++] = IOVEC_MAKE_STRING(syslog_identifier); } if (pid) { syslog_pid = strappend("SYSLOG_PID=", pid); if (syslog_pid) iovec[n++] = IOVEC_MAKE_STRING(syslog_pid); } } if (cunescape_length_with_prefix(p, pl, "MESSAGE=", UNESCAPE_RELAX, &message) >= 0) iovec[n++] = IOVEC_MAKE_STRING(message); server_dispatch_message(s, iovec, n, ELEMENTSOF(iovec), NULL, NULL, priority, 0); finish: for (j = 0; j < z; j++) free(iovec[j].iov_base); }