procd: service gets deleted when its last instance is freed
[project/procd.git] / system.c
index d5bf000..1e31ce6 100644 (file)
--- a/system.c
+++ b/system.c
  */
 
 #include <sys/utsname.h>
+#ifdef linux
 #include <sys/sysinfo.h>
+#endif
 #include <sys/ioctl.h>
 #include <sys/types.h>
+#include <sys/reboot.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <signal.h>
 #include <unistd.h>
+#include <stdlib.h>
 
 #include <libubox/uloop.h>
 
@@ -38,7 +42,7 @@ static int system_board(struct ubus_context *ctx, struct ubus_object *obj,
 {
        void *c;
        char line[256];
-       char *key, *val;
+       char *key, *val, *next;
        struct utsname utsname;
        FILE *f;
 
@@ -64,15 +68,21 @@ static int system_board(struct ubus_context *ctx, struct ubus_object *obj,
                            !strcasecmp(key, "processor") ||
                            !strcasecmp(key, "model name"))
                        {
-                               blobmsg_add_string(&b, "system", val + 2);
-                               break;
+                               strtoul(val + 2, &key, 0);
+
+                               if (key == (val + 2) || *key != 0)
+                               {
+                                       blobmsg_add_string(&b, "system", val + 2);
+                                       break;
+                               }
                        }
                }
 
                fclose(f);
        }
 
-       if ((f = fopen("/tmp/sysinfo/model", "r")) != NULL)
+       if ((f = fopen("/tmp/sysinfo/model", "r")) != NULL ||
+           (f = fopen("/proc/device-tree/model", "r")) != NULL)
        {
                if (fgets(line, sizeof(line), f))
                {
@@ -111,24 +121,58 @@ static int system_board(struct ubus_context *ctx, struct ubus_object *obj,
 
                while (fgets(line, sizeof(line), f))
                {
-                       key = strtok(line, "=\"");
-                       val = strtok(NULL, "\"\n");
+                       char *dest;
+                       char ch;
 
-                       if (!key || !val)
+                       key = line;
+                       val = strchr(line, '=');
+                       if (!val)
                                continue;
 
+                       *(val++) = 0;
+
                        if (!strcasecmp(key, "DISTRIB_ID"))
-                               blobmsg_add_string(&b, "distribution", val);
+                               key = "distribution";
                        else if (!strcasecmp(key, "DISTRIB_RELEASE"))
-                               blobmsg_add_string(&b, "version", val);
+                               key = "version";
                        else if (!strcasecmp(key, "DISTRIB_REVISION"))
-                               blobmsg_add_string(&b, "revision", val);
+                               key = "revision";
                        else if (!strcasecmp(key, "DISTRIB_CODENAME"))
-                               blobmsg_add_string(&b, "codename", val);
+                               key = "codename";
                        else if (!strcasecmp(key, "DISTRIB_TARGET"))
-                               blobmsg_add_string(&b, "target", val);
+                               key = "target";
                        else if (!strcasecmp(key, "DISTRIB_DESCRIPTION"))
-                               blobmsg_add_string(&b, "description", val);
+                               key = "description";
+                       else
+                               continue;
+
+                       dest = blobmsg_alloc_string_buffer(&b, key, strlen(val));
+                       if (!dest) {
+                               ERROR("Failed to allocate blob.\n");
+                               continue;
+                       }
+
+                       while (val && (ch = *(val++)) != 0) {
+                               switch (ch) {
+                               case '\'':
+                               case '"':
+                                       next = strchr(val, ch);
+                                       if (next)
+                                               *next = 0;
+
+                                       strcpy(dest, val);
+
+                                       if (next)
+                                               val = next + 1;
+
+                                       dest += strlen(dest);
+                                       break;
+                               case '\\':
+                                       *(dest++) = *(val++);
+                                       break;
+                               }
+                       }
+                       blobmsg_add_string_buffer(&b);
                }
 
                blobmsg_close_array(&b, c);
@@ -145,23 +189,27 @@ static int system_info(struct ubus_context *ctx, struct ubus_object *obj,
                 struct ubus_request_data *req, const char *method,
                 struct blob_attr *msg)
 {
-       void *c;
        time_t now;
        struct tm *tm;
+#ifdef linux
        struct sysinfo info;
+       void *c;
+
+       if (sysinfo(&info))
+               return UBUS_STATUS_UNKNOWN_ERROR;
+#endif
 
        now = time(NULL);
 
        if (!(tm = localtime(&now)))
                return UBUS_STATUS_UNKNOWN_ERROR;
 
-       if (sysinfo(&info))
-               return UBUS_STATUS_UNKNOWN_ERROR;
-
        blob_buf_init(&b, 0);
 
+       blobmsg_add_u32(&b, "localtime", now + tm->tm_gmtoff);
+
+#ifdef linux
        blobmsg_add_u32(&b, "uptime",    info.uptime);
-       blobmsg_add_u32(&b, "localtime", mktime(tm));
 
        c = blobmsg_open_array(&b, "load");
        blobmsg_add_u32(&b, NULL, info.loads[0]);
@@ -170,16 +218,17 @@ static int system_info(struct ubus_context *ctx, struct ubus_object *obj,
        blobmsg_close_array(&b, c);
 
        c = blobmsg_open_table(&b, "memory");
-       blobmsg_add_u32(&b, "total",    info.mem_unit * info.totalram);
-       blobmsg_add_u32(&b, "free",     info.mem_unit * info.freeram);
-       blobmsg_add_u32(&b, "shared",   info.mem_unit * info.sharedram);
-       blobmsg_add_u32(&b, "buffered", info.mem_unit * info.bufferram);
+       blobmsg_add_u64(&b, "total",    info.mem_unit * info.totalram);
+       blobmsg_add_u64(&b, "free",     info.mem_unit * info.freeram);
+       blobmsg_add_u64(&b, "shared",   info.mem_unit * info.sharedram);
+       blobmsg_add_u64(&b, "buffered", info.mem_unit * info.bufferram);
        blobmsg_close_table(&b, c);
 
        c = blobmsg_open_table(&b, "swap");
-       blobmsg_add_u32(&b, "total",    info.mem_unit * info.totalswap);
-       blobmsg_add_u32(&b, "free",     info.mem_unit * info.freeswap);
+       blobmsg_add_u64(&b, "total",    info.mem_unit * info.totalswap);
+       blobmsg_add_u64(&b, "free",     info.mem_unit * info.freeswap);
        blobmsg_close_table(&b, c);
+#endif
 
        ubus_send_reply(ctx, req, b.head);
 
@@ -194,6 +243,14 @@ static int system_upgrade(struct ubus_context *ctx, struct ubus_object *obj,
        return 0;
 }
 
+static int system_reboot(struct ubus_context *ctx, struct ubus_object *obj,
+                        struct ubus_request_data *req, const char *method,
+                        struct blob_attr *msg)
+{
+       procd_shutdown(RB_AUTOBOOT);
+       return 0;
+}
+
 enum {
        WDT_FREQUENCY,
        WDT_TIMEOUT,
@@ -241,7 +298,7 @@ static int watchdog_set(struct ubus_context *ctx, struct ubus_object *obj,
        if (tb[WDT_STOP])
                watchdog_set_stopped(blobmsg_get_bool(tb[WDT_STOP]));
 
-       if (watchdog_fd() < 0)
+       if (watchdog_fd() == NULL)
                status = "offline";
        else if (watchdog_get_stopped())
                status = "stopped";
@@ -286,18 +343,66 @@ static int proc_signal(struct ubus_context *ctx, struct ubus_object *obj,
        return 0;
 }
 
+enum {
+       NAND_PATH,
+       __NAND_MAX
+};
+
+static const struct blobmsg_policy nand_policy[__NAND_MAX] = {
+       [NAND_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
+};
+
+static void
+procd_spawn_upgraded(char *path)
+{
+       char *wdt_fd = watchdog_fd();
+       char *argv[] = { "/tmp/upgraded", NULL, NULL};
+
+       argv[1] = path;
+
+       DEBUG(2, "Exec to upgraded now\n");
+       if (wdt_fd) {
+               watchdog_no_cloexec();
+               setenv("WDTFD", wdt_fd, 1);
+       }
+       execvp(argv[0], argv);
+}
+
+static int nand_set(struct ubus_context *ctx, struct ubus_object *obj,
+                       struct ubus_request_data *req, const char *method,
+                       struct blob_attr *msg)
+{
+       struct blob_attr *tb[__NAND_MAX];
+
+       if (!msg)
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       blobmsg_parse(nand_policy, __NAND_MAX, tb, blob_data(msg), blob_len(msg));
+       if (!tb[NAND_PATH])
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       procd_spawn_upgraded(blobmsg_get_string(tb[NAND_PATH]));
+       fprintf(stderr, "Yikees, something went wrong. no /sbin/upgraded ?\n");
+       return 0;
+}
+
 static void
 procd_subscribe_cb(struct ubus_context *ctx, struct ubus_object *obj)
 {
        notify = obj->has_subscribers;
 }
 
+
 static const struct ubus_method system_methods[] = {
        UBUS_METHOD_NOARG("board", system_board),
        UBUS_METHOD_NOARG("info",  system_info),
        UBUS_METHOD_NOARG("upgrade", system_upgrade),
+       UBUS_METHOD_NOARG("reboot", system_reboot),
        UBUS_METHOD("watchdog", watchdog_set, watchdog_policy),
        UBUS_METHOD("signal", proc_signal, signal_policy),
+
+       /* must remain at the end as it ia not always loaded */
+       UBUS_METHOD("nandupgrade", nand_set, nand_policy),
 };
 
 static struct ubus_object_type system_object_type =
@@ -326,8 +431,12 @@ procd_bcast_event(char *event, struct blob_attr *msg)
 
 void ubus_init_system(struct ubus_context *ctx)
 {
+       struct stat s;
        int ret;
 
+       if (stat("/sbin/upgraded", &s))
+               system_object.n_methods -= 1;
+
        _ctx = ctx;
        ret = ubus_add_object(ctx, &system_object);
        if (ret)