+++ /dev/null
-/*
- * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1
- * as published by the Free Software Foundation
- *
- * This program 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.
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <fcntl.h>
-#include <time.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#define SYSLOG_NAMES
-#include <syslog.h>
-
-#include <libubox/blobmsg_json.h>
-#include <libubox/usock.h>
-#include <libubox/uloop.h>
-#include "libubus.h"
-#include "syslog.h"
-
-enum {
- LOG_STDOUT,
- LOG_FILE,
- LOG_NET,
-};
-
-enum {
- LOG_MSG,
- LOG_ID,
- LOG_PRIO,
- LOG_SOURCE,
- LOG_TIME,
- __LOG_MAX
-};
-
-static const struct blobmsg_policy log_policy[] = {
- [LOG_MSG] = { .name = "msg", .type = BLOBMSG_TYPE_STRING },
- [LOG_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
- [LOG_PRIO] = { .name = "priority", .type = BLOBMSG_TYPE_INT32 },
- [LOG_SOURCE] = { .name = "source", .type = BLOBMSG_TYPE_INT32 },
- [LOG_TIME] = { .name = "time", .type = BLOBMSG_TYPE_INT64 },
-};
-
-static struct ubus_subscriber log_event;
-static struct uloop_timeout retry;
-static struct uloop_fd sender;
-static const char *log_file, *log_ip, *log_port, *log_prefix, *pid_file, *hostname;
-static int log_type = LOG_STDOUT;
-static int log_size, log_udp;
-
-static const char* getcodetext(int value, CODE *codetable) {
- CODE *i;
-
- if (value >= 0)
- for (i = codetable; i->c_val != -1; i++)
- if (i->c_val == value)
- return (i->c_name);
- return "<unknown>";
-};
-
-static void log_handle_reconnect(struct uloop_timeout *timeout)
-{
- sender.fd = usock((log_udp) ? (USOCK_UDP) : (USOCK_TCP), log_ip, log_port);
- if (sender.fd < 0) {
- fprintf(stderr, "failed to connect: %s\n", strerror(errno));
- uloop_timeout_set(&retry, 1000);
- } else {
- uloop_fd_add(&sender, ULOOP_READ);
- syslog(0, "Logread connected to %s:%s\n", log_ip, log_port);
- }
-}
-
-static void log_handle_remove(struct ubus_context *ctx, struct ubus_subscriber *s,
- uint32_t id)
-{
- fprintf(stderr, "Object %08x went away\n", id);
-}
-
-static void log_handle_fd(struct uloop_fd *u, unsigned int events)
-{
- if (u->eof) {
- uloop_fd_delete(u);
- close(sender.fd);
- sender.fd = -1;
- uloop_timeout_set(&retry, 1000);
- }
-}
-
-static int log_notify(struct ubus_context *ctx, struct ubus_object *obj,
- struct ubus_request_data *req, const char *method,
- struct blob_attr *msg)
-{
- struct blob_attr *tb[__LOG_MAX];
- struct stat s;
- char buf[512];
- uint32_t p;
- char *str;
- time_t t;
- char *c;
-
- if (sender.fd < 0)
- return 0;
-
- blobmsg_parse(log_policy, ARRAY_SIZE(log_policy), tb, blob_data(msg), blob_len(msg));
- if (!tb[LOG_ID] || !tb[LOG_PRIO] || !tb[LOG_SOURCE] || !tb[LOG_TIME])
- return 1;
-
- if ((log_type == LOG_FILE) && log_size && (!stat(log_file, &s)) && (s.st_size > log_size)) {
- char *old = malloc(strlen(log_file) + 5);
-
- close(sender.fd);
- if (old) {
- sprintf(old, "%s.old", log_file);
- rename(log_file, old);
- free(old);
- }
- sender.fd = open(log_file, O_CREAT | O_WRONLY | O_APPEND, 0600);
- if (sender.fd < 0) {
-// fprintf(stderr, "failed to open %s: %s\n", log_file, strerror(errno));
- exit(-1);
- }
- }
-
- t = blobmsg_get_u64(tb[LOG_TIME]) / 1000;
- c = ctime(&t);
- p = blobmsg_get_u32(tb[LOG_PRIO]);
- c[strlen(c) - 1] = '\0';
- str = blobmsg_format_json(msg, true);
- if (log_type == LOG_NET) {
- int err;
-
- *buf = '\0';
- if (hostname)
- snprintf(buf, sizeof(buf), "%s ", hostname);
- if (log_prefix) {
- strncat(buf, log_prefix, sizeof(buf));
- strncat(buf, ": ", sizeof(buf));
- }
- if (blobmsg_get_u32(tb[LOG_SOURCE]) == SOURCE_KLOG)
- strncat(buf, "kernel: ", sizeof(buf));
- strncat(buf, method, sizeof(buf));
- if (log_udp)
- err = write(sender.fd, buf, strlen(buf));
- else
- err = send(sender.fd, buf, strlen(buf), 0);
-
- if (err < 0) {
- syslog(0, "failed to send log data to %s:%s via %s\n",
- log_ip, log_port, (log_udp) ? ("udp") : ("tcp"));
- uloop_fd_delete(&sender);
- close(sender.fd);
- sender.fd = -1;
- uloop_timeout_set(&retry, 1000);
- }
- } else {
- snprintf(buf, sizeof(buf), "%s %s.%s%s %s\n",
- c, getcodetext(LOG_FAC(p) << 3, facilitynames), getcodetext(LOG_PRI(p), prioritynames),
- (blobmsg_get_u32(tb[LOG_SOURCE])) ? ("") : (" kernel:"),
- method);
- write(sender.fd, buf, strlen(buf));
- }
-
- free(str);
- if (log_type == LOG_FILE)
- fsync(sender.fd);
-
- return 0;
-}
-
-static void follow_log(struct ubus_context *ctx, int id)
-{
- FILE *fp;
- int ret;
-
- signal(SIGPIPE, SIG_IGN);
-
- if (pid_file) {
- fp = fopen(pid_file, "w+");
- if (fp) {
- fprintf(fp, "%d", getpid());
- fclose(fp);
- }
- }
-
- uloop_init();
- ubus_add_uloop(ctx);
-
- log_event.remove_cb = log_handle_remove;
- log_event.cb = log_notify;
- ret = ubus_register_subscriber(ctx, &log_event);
- if (ret)
- fprintf(stderr, "Failed to add watch handler: %s\n", ubus_strerror(ret));
-
- ret = ubus_subscribe(ctx, &log_event, id);
- if (ret)
- fprintf(stderr, "Failed to add watch handler: %s\n", ubus_strerror(ret));
-
- if (log_ip && log_port) {
- openlog("logread", LOG_PID, LOG_DAEMON);
- log_type = LOG_NET;
- sender.cb = log_handle_fd;
- retry.cb = log_handle_reconnect;
- uloop_timeout_set(&retry, 1000);
- } else if (log_file) {
- log_type = LOG_FILE;
- sender.fd = open(log_file, O_CREAT | O_WRONLY| O_APPEND, 0600);
- if (sender.fd < 0) {
- fprintf(stderr, "failed to open %s: %s\n", log_file, strerror(errno));
- exit(-1);
- }
- } else {
- sender.fd = STDOUT_FILENO;
- }
-
- uloop_run();
- ubus_free(ctx);
- uloop_done();
-}
-
-enum {
- READ_LINE,
- __READ_MAX
-};
-
-
-
-static const struct blobmsg_policy read_policy[] = {
- [READ_LINE] = { .name = "lines", .type = BLOBMSG_TYPE_ARRAY },
-};
-
-static void read_cb(struct ubus_request *req, int type, struct blob_attr *msg)
-{
- struct blob_attr *cur;
- struct blob_attr *_tb[__READ_MAX];
- time_t t;
- int rem;
-
- if (!msg)
- return;
-
- blobmsg_parse(read_policy, ARRAY_SIZE(read_policy), _tb, blob_data(msg), blob_len(msg));
- if (!_tb[READ_LINE])
- return;
- blobmsg_for_each_attr(cur, _tb[READ_LINE], rem) {
- struct blob_attr *tb[__LOG_MAX];
- uint32_t p;
- char *c;
-
- if (blobmsg_type(cur) != BLOBMSG_TYPE_TABLE)
- continue;
-
- blobmsg_parse(log_policy, ARRAY_SIZE(log_policy), tb, blobmsg_data(cur), blobmsg_data_len(cur));
- if (!tb[LOG_MSG] || !tb[LOG_ID] || !tb[LOG_PRIO] || !tb[LOG_SOURCE] || !tb[LOG_TIME])
- continue;
-
- t = blobmsg_get_u64(tb[LOG_TIME]);
- p = blobmsg_get_u32(tb[LOG_PRIO]);
- c = ctime(&t);
- c[strlen(c) - 1] = '\0';
-
- printf("%s %s.%s%s %s\n",
- c, getcodetext(LOG_FAC(p) << 3, facilitynames), getcodetext(LOG_PRI(p), prioritynames),
- (blobmsg_get_u32(tb[LOG_SOURCE])) ? ("") : (" kernel:"),
- blobmsg_get_string(tb[LOG_MSG]));
- }
-}
-
-static int usage(const char *prog)
-{
- fprintf(stderr, "Usage: %s [options]\n"
- "Options:\n"
- " -s <path> Path to ubus socket\n"
- " -l <count> Got only the last 'count' messages\n"
- " -r <server> <port> Stream message to a server\n"
- " -F <file> Log file\n"
- " -S <bytes> Log size\n"
- " -p <file> PID file\n"
- " -h <hostname> Add hostname to the message\n"
- " -P <prefix> Prefix custom text to streamed messages\n"
- " -f Follow log messages\n"
- " -u Use UDP as the protocol\n"
- "\n", prog);
- return 1;
-}
-
-int main(int argc, char **argv)
-{
- struct ubus_context *ctx;
- uint32_t id;
- const char *ubus_socket = NULL;
- int ch, ret, subscribe = 0, lines = 0;
- static struct blob_buf b;
-
- while ((ch = getopt(argc, argv, "ufcs:l:r:F:p:S:P:h:")) != -1) {
- switch (ch) {
- case 'u':
- log_udp = 1;
- break;
- case 's':
- ubus_socket = optarg;
- break;
- case 'r':
- log_ip = optarg++;
- log_port = argv[optind++];
- break;
- case 'F':
- log_file = optarg;
- break;
- case 'p':
- pid_file = optarg;
- break;
- case 'P':
- log_prefix = optarg;
- break;
- case 'f':
- subscribe = 1;
- break;
- case 'l':
- lines = atoi(optarg);
- break;
- case 'S':
- log_size = atoi(optarg);
- if (log_size < 1)
- log_size = 1;
- log_size *= 1024;
- break;
- case 'h':
- hostname = optarg;
- break;
- default:
- return usage(*argv);
- }
- }
-
- ctx = ubus_connect(ubus_socket);
- if (!ctx) {
- fprintf(stderr, "Failed to connect to ubus\n");
- return -1;
- }
-
- ret = ubus_lookup_id(ctx, "log", &id);
- if (ret)
- fprintf(stderr, "Failed to find log object: %s\n", ubus_strerror(ret));
-
- if (!subscribe || lines) {
- blob_buf_init(&b, 0);
- if (lines)
- blobmsg_add_u32(&b, "lines", lines);
- ubus_invoke(ctx, id, "read", b.head, read_cb, 0, 3000);
- }
-
- if (subscribe)
- follow_log(ctx, id);
-
- return 0;
-}
projects / project / procd.git / blobdiff