2 * luci-rpcd - LuCI UBUS RPC server
4 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 #include <arpa/inet.h>
30 static struct blob_buf buf;
31 static struct uci_context *cursor;
39 static const struct blobmsg_policy rpc_signal_policy[__RPC_S_MAX] = {
40 [RPC_S_PID] = { .name = "pid", .type = BLOBMSG_TYPE_INT32 },
41 [RPC_S_SIGNAL] = { .name = "signal", .type = BLOBMSG_TYPE_INT32 },
46 rpc_errno_status(void)
51 return UBUS_STATUS_PERMISSION_DENIED;
54 return UBUS_STATUS_INVALID_ARGUMENT;
57 return UBUS_STATUS_NOT_FOUND;
60 return UBUS_STATUS_INVALID_ARGUMENT;
63 return UBUS_STATUS_UNKNOWN_ERROR;
68 log_read(FILE *log, int logsize)
74 logsize = RPC_LUCI2_DEF_LOGSIZE;
76 len = (logsize > RPC_LUCI2_MAX_LOGSIZE) ? RPC_LUCI2_MAX_LOGSIZE : logsize;
77 logbuf = blobmsg_alloc_string_buffer(&buf, "log", len + 1);
82 while (logsize > RPC_LUCI2_MAX_LOGSIZE)
84 len = logsize % RPC_LUCI2_MAX_LOGSIZE;
87 len = RPC_LUCI2_MAX_LOGSIZE;
89 fread(logbuf, 1, len, log);
93 len = fread(logbuf, 1, logsize, log);
96 blobmsg_add_string_buffer(&buf);
100 rpc_luci2_system_log(struct ubus_context *ctx, struct ubus_object *obj,
101 struct ubus_request_data *req, const char *method,
102 struct blob_attr *msg)
106 const char *logfile = NULL;
108 struct uci_package *p;
109 struct uci_element *e;
110 struct uci_section *s;
111 struct uci_ptr ptr = { .package = "system" };
113 uci_load(cursor, ptr.package, &p);
116 return UBUS_STATUS_NOT_FOUND;
118 uci_foreach_element(&p->sections, e)
120 s = uci_to_section(e);
122 if (strcmp(s->type, "system"))
126 ptr.option = "log_type";
127 ptr.section = e->name;
128 uci_lookup_ptr(cursor, &ptr, NULL, true);
132 if (ptr.o && ptr.o->type == UCI_TYPE_STRING &&
133 !strcmp(ptr.o->v.string, "file"))
136 ptr.option = "log_file";
137 uci_lookup_ptr(cursor, &ptr, NULL, true);
139 if (ptr.o && ptr.o->type == UCI_TYPE_STRING)
140 logfile = ptr.o->v.string;
142 logfile = "/var/log/messages";
144 if (stat(logfile, &st) || !(log = fopen(logfile, "r")))
147 logsize = st.st_size;
152 ptr.option = "log_size";
153 uci_lookup_ptr(cursor, &ptr, NULL, true);
155 if (ptr.o && ptr.o->type == UCI_TYPE_STRING)
156 logsize = atoi(ptr.o->v.string) * 1024;
158 if (!(log = popen("logread", "r")))
162 blob_buf_init(&buf, 0);
164 log_read(log, logsize);
167 uci_unload(cursor, p);
168 ubus_send_reply(ctx, req, buf.head);
172 uci_unload(cursor, p);
173 return rpc_errno_status();
177 rpc_luci2_system_dmesg(struct ubus_context *ctx, struct ubus_object *obj,
178 struct ubus_request_data *req, const char *method,
179 struct blob_attr *msg)
183 if (!(log = popen("dmesg", "r")))
184 return rpc_errno_status();
186 blob_buf_init(&buf, 0);
188 log_read(log, RPC_LUCI2_MAX_LOGSIZE);
191 ubus_send_reply(ctx, req, buf.head);
196 rpc_luci2_process_list(struct ubus_context *ctx, struct ubus_object *obj,
197 struct ubus_request_data *req, const char *method,
198 struct blob_attr *msg)
203 char *pid, *ppid, *user, *stat, *vsz, *pvsz, *pcpu, *cmd;
205 if (!(top = popen("/bin/busybox top -bn1", "r")))
206 return rpc_errno_status();
208 blob_buf_init(&buf, 0);
209 c = blobmsg_open_array(&buf, "processes");
211 while (fgets(line, sizeof(line) - 1, top))
213 pid = strtok(line, " ");
215 if (*pid < '0' || *pid > '9')
218 ppid = strtok(NULL, " ");
219 user = strtok(NULL, " ");
220 stat = strtok(NULL, " ");
233 vsz = strtok(stat + 4, " ");
234 pvsz = strtok(NULL, " ");
235 pcpu = strtok(NULL, " ");
236 cmd = strtok(NULL, "\n");
241 d = blobmsg_open_table(&buf, NULL);
243 blobmsg_add_u32(&buf, "pid", atoi(pid));
244 blobmsg_add_u32(&buf, "ppid", atoi(ppid));
245 blobmsg_add_string(&buf, "user", user);
246 blobmsg_add_string(&buf, "stat", stat);
247 blobmsg_add_u32(&buf, "vsize", atoi(vsz) * 1024);
248 blobmsg_add_u32(&buf, "vsize_percent", atoi(pvsz));
249 blobmsg_add_u32(&buf, "cpu_percent", atoi(pcpu));
250 blobmsg_add_string(&buf, "command", cmd);
252 blobmsg_close_table(&buf, d);
256 blobmsg_close_array(&buf, c);
258 ubus_send_reply(ctx, req, buf.head);
263 rpc_luci2_process_signal(struct ubus_context *ctx, struct ubus_object *obj,
264 struct ubus_request_data *req, const char *method,
265 struct blob_attr *msg)
268 struct blob_attr *tb[__RPC_S_MAX];
270 blobmsg_parse(rpc_signal_policy, __RPC_S_MAX, tb,
271 blob_data(msg), blob_len(msg));
273 if (!tb[RPC_S_SIGNAL] || !tb[RPC_S_PID])
276 return rpc_errno_status();
279 pid = blobmsg_get_u32(tb[RPC_S_PID]);
280 sig = blobmsg_get_u32(tb[RPC_S_SIGNAL]);
283 return rpc_errno_status();
290 dnsmasq_leasefile(void)
293 struct uci_package *p;
294 struct uci_element *e;
295 struct uci_section *s;
296 struct uci_ptr ptr = {
299 .option = "leasefile"
302 uci_load(cursor, ptr.package, &p);
307 uci_foreach_element(&p->sections, e)
309 s = uci_to_section(e);
311 if (strcmp(s->type, "dnsmasq"))
314 ptr.section = e->name;
315 uci_lookup_ptr(cursor, &ptr, NULL, true);
319 if (ptr.o && ptr.o->type == UCI_TYPE_STRING)
320 leases = fopen(ptr.o->v.string, "r");
322 uci_unload(cursor, p);
328 rpc_luci2_network_leases(struct ubus_context *ctx, struct ubus_object *obj,
329 struct ubus_request_data *req, const char *method,
330 struct blob_attr *msg)
335 char *ts, *mac, *addr, *name;
336 time_t now = time(NULL);
338 blob_buf_init(&buf, 0);
339 c = blobmsg_open_array(&buf, "leases");
341 leases = dnsmasq_leasefile();
346 while (fgets(line, sizeof(line) - 1, leases))
348 ts = strtok(line, " \t");
349 mac = strtok(NULL, " \t");
350 addr = strtok(NULL, " \t");
351 name = strtok(NULL, " \t");
353 if (!ts || !mac || !addr || !name)
356 if (strchr(addr, ':'))
359 d = blobmsg_open_table(&buf, NULL);
361 blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
362 blobmsg_add_string(&buf, "macaddr", mac);
363 blobmsg_add_string(&buf, "ipaddr", addr);
365 if (strcmp(name, "*"))
366 blobmsg_add_string(&buf, "hostname", name);
368 blobmsg_close_table(&buf, d);
374 blobmsg_close_array(&buf, c);
375 ubus_send_reply(ctx, req, buf.head);
381 rpc_luci2_network_leases6(struct ubus_context *ctx, struct ubus_object *obj,
382 struct ubus_request_data *req, const char *method,
383 struct blob_attr *msg)
388 char *ts, *mac, *addr, *name, *duid;
389 time_t now = time(NULL);
391 blob_buf_init(&buf, 0);
392 c = blobmsg_open_array(&buf, "leases");
394 leases = fopen("/tmp/hosts/6relayd", "r");
398 while (fgets(line, sizeof(line) - 1, leases))
400 if (strncmp(line, "# ", 2))
403 strtok(line + 2, " \t"); /* iface */
405 duid = strtok(NULL, " \t");
407 strtok(NULL, " \t"); /* iaid */
409 name = strtok(NULL, " \t");
410 ts = strtok(NULL, " \t");
412 strtok(NULL, " \t"); /* id */
413 strtok(NULL, " \t"); /* length */
415 addr = strtok(NULL, " \t\n");
420 d = blobmsg_open_table(&buf, NULL);
422 blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
423 blobmsg_add_string(&buf, "duid", duid);
424 blobmsg_add_string(&buf, "ip6addr", addr);
426 if (strcmp(name, "-"))
427 blobmsg_add_string(&buf, "hostname", name);
429 blobmsg_close_array(&buf, d);
436 leases = dnsmasq_leasefile();
441 while (fgets(line, sizeof(line) - 1, leases))
443 ts = strtok(line, " \t");
444 mac = strtok(NULL, " \t");
445 addr = strtok(NULL, " \t");
446 name = strtok(NULL, " \t");
447 duid = strtok(NULL, " \t\n");
449 if (!ts || !mac || !addr || !duid)
452 if (!strchr(addr, ':'))
455 d = blobmsg_open_table(&buf, NULL);
457 blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
458 blobmsg_add_string(&buf, "macaddr", mac);
459 blobmsg_add_string(&buf, "ip6addr", addr);
461 if (strcmp(name, "*"))
462 blobmsg_add_string(&buf, "hostname", name);
464 if (strcmp(duid, "*"))
465 blobmsg_add_string(&buf, "duid", name);
467 blobmsg_close_table(&buf, d);
474 blobmsg_close_array(&buf, c);
475 ubus_send_reply(ctx, req, buf.head);
481 rpc_luci2_network_ct_count(struct ubus_context *ctx, struct ubus_object *obj,
482 struct ubus_request_data *req, const char *method,
483 struct blob_attr *msg)
488 blob_buf_init(&buf, 0);
490 if ((f = fopen("/proc/sys/net/netfilter/nf_conntrack_count", "r")) != NULL)
492 if (fgets(line, sizeof(line) - 1, f))
493 blobmsg_add_u32(&buf, "count", atoi(line));
498 if ((f = fopen("/proc/sys/net/netfilter/nf_conntrack_max", "r")) != NULL)
500 if (fgets(line, sizeof(line) - 1, f))
501 blobmsg_add_u32(&buf, "limit", atoi(line));
506 ubus_send_reply(ctx, req, buf.head);
512 rpc_luci2_network_ct_table(struct ubus_context *ctx, struct ubus_object *obj,
513 struct ubus_request_data *req, const char *method,
514 struct blob_attr *msg)
522 blob_buf_init(&buf, 0);
523 c = blobmsg_open_array(&buf, "entries");
525 if ((f = fopen("/proc/net/nf_conntrack", "r")) != NULL)
527 while (fgets(line, sizeof(line) - 1, f))
529 d = blobmsg_open_table(&buf, NULL);
530 memset(seen, 0, sizeof(seen));
532 for (i = 0, p = strtok(line, " "); p; i++, p = strtok(NULL, " "))
535 blobmsg_add_u8(&buf, "ipv6", !strcmp(p, "ipv6"));
537 blobmsg_add_u32(&buf, "protocol", atoi(p));
539 blobmsg_add_u32(&buf, "expires", atoi(p));
545 if (!seen[0] && !strncmp(p, "src=", 4))
547 blobmsg_add_string(&buf, "src", p + 4);
550 else if (!seen[1] && !strncmp(p, "dst=", 4))
552 blobmsg_add_string(&buf, "dest", p + 4);
555 else if (!seen[2] && !strncmp(p, "sport=", 6))
557 blobmsg_add_u32(&buf, "sport", atoi(p + 6));
560 else if (!seen[3] && !strncmp(p, "dport=", 6))
562 blobmsg_add_u32(&buf, "dport", atoi(p + 6));
565 else if (!strncmp(p, "packets=", 8))
567 blobmsg_add_u32(&buf,
568 seen[4] ? "tx_packets" : "rx_packets",
572 else if (!strncmp(p, "bytes=", 6))
574 blobmsg_add_u32(&buf,
575 seen[5] ? "tx_bytes" : "rx_bytes",
582 blobmsg_close_table(&buf, d);
588 blobmsg_close_array(&buf, c);
589 ubus_send_reply(ctx, req, buf.head);
595 rpc_luci2_network_arp_table(struct ubus_context *ctx, struct ubus_object *obj,
596 struct ubus_request_data *req, const char *method,
597 struct blob_attr *msg)
601 char *addr, *mac, *dev, line[128];
603 blob_buf_init(&buf, 0);
604 c = blobmsg_open_array(&buf, "entries");
606 if ((f = fopen("/proc/net/arp", "r")) != NULL)
608 /* skip header line */
609 fgets(line, sizeof(line) - 1, f);
611 while (fgets(line, sizeof(line) - 1, f))
613 addr = strtok(line, " \t");
615 strtok(NULL, " \t"); /* HW type */
616 strtok(NULL, " \t"); /* Flags */
618 mac = strtok(NULL, " \t");
620 strtok(NULL, " \t"); /* Mask */
622 dev = strtok(NULL, " \t\n");
627 d = blobmsg_open_table(&buf, NULL);
628 blobmsg_add_string(&buf, "ipaddr", addr);
629 blobmsg_add_string(&buf, "macaddr", mac);
630 blobmsg_add_string(&buf, "device", dev);
631 blobmsg_close_table(&buf, d);
637 blobmsg_close_array(&buf, c);
638 ubus_send_reply(ctx, req, buf.head);
644 put_hexaddr(const char *name, const char *s, const char *m)
648 char as[sizeof("255.255.255.255/32\0")];
650 a.s_addr = strtoul(s, NULL, 16);
651 inet_ntop(AF_INET, &a, as, sizeof(as));
655 for (a.s_addr = ntohl(strtoul(m, NULL, 16)), bits = 0;
656 a.s_addr & 0x80000000;
660 sprintf(as + strlen(as), "/%u", bits);
663 blobmsg_add_string(&buf, name, as);
667 rpc_luci2_network_routes(struct ubus_context *ctx, struct ubus_object *obj,
668 struct ubus_request_data *req, const char *method,
669 struct blob_attr *msg)
673 char *dst, *dmask, *next, *metric, *device;
677 if (!(routes = fopen("/proc/net/route", "r")))
678 return rpc_errno_status();
680 blob_buf_init(&buf, 0);
681 c = blobmsg_open_array(&buf, "routes");
683 /* skip header line */
684 fgets(line, sizeof(line) - 1, routes);
686 while (fgets(line, sizeof(line) - 1, routes))
688 device = strtok(line, "\t ");
689 dst = strtok(NULL, "\t ");
690 next = strtok(NULL, "\t ");
692 strtok(NULL, "\t "); /* flags */
693 strtok(NULL, "\t "); /* refcount */
694 strtok(NULL, "\t "); /* usecount */
696 metric = strtok(NULL, "\t ");
697 dmask = strtok(NULL, "\t ");
702 d = blobmsg_open_table(&buf, NULL);
704 put_hexaddr("target", dst, dmask);
705 put_hexaddr("nexthop", next, NULL);
707 n = strtoul(metric, NULL, 10);
708 blobmsg_add_u32(&buf, "metric", n);
710 blobmsg_add_string(&buf, "device", device);
712 blobmsg_close_table(&buf, d);
715 blobmsg_close_array(&buf, c);
718 ubus_send_reply(ctx, req, buf.head);
723 put_hex6addr(const char *name, const char *s, const char *m)
727 char as[INET6_ADDRSTRLEN + sizeof("/128")];
730 (((x) <= '9') ? ((x) - '0') : \
731 (((x) <= 'F') ? ((x) - 'A' + 10) : \
734 for (i = 0; i < 16; i++, s += 2)
735 a.s6_addr[i] = (16 * hex(*s)) + hex(*(s+1));
737 inet_ntop(AF_INET6, &a, as, sizeof(as));
740 sprintf(as + strlen(as), "/%lu", strtoul(m, NULL, 16));
742 blobmsg_add_string(&buf, name, as);
746 rpc_luci2_network_routes6(struct ubus_context *ctx, struct ubus_object *obj,
747 struct ubus_request_data *req, const char *method,
748 struct blob_attr *msg)
752 char *src, *smask, *dst, *dmask, *next, *metric, *flags, *device;
756 if (!(routes = fopen("/proc/net/ipv6_route", "r")))
757 return rpc_errno_status();
759 blob_buf_init(&buf, 0);
760 c = blobmsg_open_array(&buf, "routes");
762 while (fgets(line, sizeof(line) - 1, routes))
764 dst = strtok(line, " ");
765 dmask = strtok(NULL, " ");
766 src = strtok(NULL, " ");
767 smask = strtok(NULL, " ");
768 next = strtok(NULL, " ");
769 metric = strtok(NULL, " ");
771 strtok(NULL, " "); /* refcount */
772 strtok(NULL, " "); /* usecount */
774 flags = strtok(NULL, " ");
775 device = strtok(NULL, " \n");
780 n = strtoul(flags, NULL, 16);
785 d = blobmsg_open_table(&buf, NULL);
787 put_hex6addr("target", dst, dmask);
788 put_hex6addr("source", src, smask);
789 put_hex6addr("nexthop", next, NULL);
791 n = strtoul(metric, NULL, 16);
792 blobmsg_add_u32(&buf, "metric", n);
794 blobmsg_add_string(&buf, "device", device);
796 blobmsg_close_table(&buf, d);
799 blobmsg_close_array(&buf, c);
802 ubus_send_reply(ctx, req, buf.head);
807 int rpc_luci2_api_init(struct ubus_context *ctx)
811 static const struct ubus_method luci2_system_methods[] = {
812 UBUS_METHOD_NOARG("syslog", rpc_luci2_system_log),
813 UBUS_METHOD_NOARG("dmesg", rpc_luci2_system_dmesg),
814 UBUS_METHOD_NOARG("process_list", rpc_luci2_process_list),
815 UBUS_METHOD("process_signal", rpc_luci2_process_signal,
819 static struct ubus_object_type luci2_system_type =
820 UBUS_OBJECT_TYPE("luci-rpc-luci2-system", luci2_system_methods);
822 static struct ubus_object system_obj = {
823 .name = "luci2.system",
824 .type = &luci2_system_type,
825 .methods = luci2_system_methods,
826 .n_methods = ARRAY_SIZE(luci2_system_methods),
830 static const struct ubus_method luci2_network_methods[] = {
831 UBUS_METHOD_NOARG("conntrack_count", rpc_luci2_network_ct_count),
832 UBUS_METHOD_NOARG("conntrack_table", rpc_luci2_network_ct_table),
833 UBUS_METHOD_NOARG("arp_table", rpc_luci2_network_arp_table),
834 UBUS_METHOD_NOARG("dhcp_leases", rpc_luci2_network_leases),
835 UBUS_METHOD_NOARG("dhcp6_leases", rpc_luci2_network_leases6),
836 UBUS_METHOD_NOARG("routes", rpc_luci2_network_routes),
837 UBUS_METHOD_NOARG("routes6", rpc_luci2_network_routes6),
840 static struct ubus_object_type luci2_network_type =
841 UBUS_OBJECT_TYPE("luci-rpc-luci2-network", luci2_network_methods);
843 static struct ubus_object network_obj = {
844 .name = "luci2.network",
845 .type = &luci2_network_type,
846 .methods = luci2_network_methods,
847 .n_methods = ARRAY_SIZE(luci2_network_methods),
850 cursor = uci_alloc_context();
853 return UBUS_STATUS_UNKNOWN_ERROR;
855 rv |= ubus_add_object(ctx, &system_obj);
856 rv |= ubus_add_object(ctx, &network_obj);