Merge commit 'a95fff37' into thread-merge-2.16

conf/conf.h

@@ -15,6 +15,7 @@
 #include "lib/resource.h"
 #include "lib/obstacle.h"
 #include "lib/timer.h"
+#include "lib/tlists.h"
 
 /* Configuration structure */
 struct config {
@@ -26,6 +27,7 @@ struct config {
   list logfiles;			/* Configured log files (sysdep) */
   list tests;				/* Configured unit tests (f_bt_test_suite) */
   list symbols;				/* Configured symbols in config order */
+  TLIST_STRUCT_DEF(cli_config, struct cli_config) cli; /* Configured CLI sockets */
 
   struct rfile *mrtdump_file;		/* Configured MRTDump file */
   const char *syslog_name;		/* Name used for syslog (NULL -> no syslog) */

nest/cli.h

@@ -12,6 +12,8 @@
 #include "lib/resource.h"
 #include "lib/lists.h"
 #include "lib/event.h"
+#include "lib/tlists.h"
+#include "conf/conf.h"
 
 #define CLI_RX_BUF_SIZE 4096
 #define CLI_TX_BUF_SIZE 4096
@@ -45,6 +47,18 @@ typedef struct cli {
   uint async_msg_size;			/* Total size of async messages queued in tx_buf */
 } cli;
 
+struct cli_config {
+#define TLIST_PREFIX cli_config
+#define TLIST_TYPE struct cli_config
+#define TLIST_ITEM n
+#define TLIST_DEFINED_BEFORE
+#define TLIST_WANT_ADD_TAIL
+  TLIST_DEFAULT_NODE;
+  const char *name;
+  uint uid, gid, mode;
+};
+#include "lib/tlists.h"
+
 extern pool *cli_pool;
 extern struct cli *this_cli;		/* Used during parsing */
 

sysdep/unix/config.Y

@@ -17,7 +17,7 @@ static struct log_config *this_log;
 
 CF_DECLS
 
-CF_KEYWORDS(LOG, SYSLOG, ALL, DEBUG, TRACE, INFO, REMOTE, WARNING, ERROR, AUTH, FATAL, BUG, STDERR, SOFT, UDP, PORT)
+CF_KEYWORDS(LOG, SYSLOG, ALL, DEBUG, TRACE, INFO, REMOTE, WARNING, ERROR, AUTH, FATAL, BUG, STDERR, SOFT, UDP, PORT, CLI)
 CF_KEYWORDS(NAME, CONFIRM, UNDO, CHECK, TIMEOUT, DEBUG, LATENCY, LIMIT, WATCHDOG, WARNING, STATUS)
 CF_KEYWORDS(PING, WAKEUP, SOCKETS, SCHEDULING, EVENTS, TIMERS, ALLOCATOR)
 CF_KEYWORDS(GRACEFUL, RESTART, FIXED)
@@ -122,7 +122,6 @@ mrtdump_base:
    }
  ;
 
-
 conf: THREADS expr {
     if ($2 < 1) cf_error("Number of threads must be at least one.");
     new_config->thread_count = $2;

sysdep/unix/io.c

@@ -1684,7 +1684,7 @@ err:
 }
 
 int
-sk_open_unix(sock *s, struct birdloop *loop, char *name)
+sk_open_unix(sock *s, struct birdloop *loop, const char *name)
 {
   struct sockaddr_un sa;
   int fd;

sysdep/unix/main.c

@@ -400,9 +400,12 @@ cmd_reconfig_status(void)
  *	Command-Line Interface
  */
 
-static sock *cli_sk;
 static char *path_control_socket = PATH_CONTROL_SOCKET;
-
+static struct cli_config *main_control_socket_config = NULL;
+static struct cli_listener {
+  sock *s;
+  struct cli_config *config;
+} *main_control_socket = NULL;
 
 static void
 cli_write(cli *c)
@@ -531,33 +534,65 @@ cli_connect(sock *s, uint size UNUSED)
   return 1;
 }
 
-static void
+static struct cli_listener *
-cli_init_unix(uid_t use_uid, gid_t use_gid)
+cli_listener(struct cli_config *cf)
 {
-  sock *s;
+  struct cli_listener *l = mb_allocz(cli_pool, sizeof *l);
-
+  l->config = cf;
-  cli_init();
+  sock *s = l->s = sk_new(cli_pool);
-  s = cli_sk = sk_new(cli_pool);
   s->type = SK_UNIX_PASSIVE;
   s->rx_hook = cli_connect;
   s->err_hook = cli_connect_err;
+  s->data = cf;
   s->rbsize = 1024;
   s->fast_rx = 1;
 
   /* Return value intentionally ignored */
-  unlink(path_control_socket);
+  unlink(cf->name);
 
-  if (sk_open_unix(s, &main_birdloop, path_control_socket) < 0)
+  if (sk_open_unix(s, &main_birdloop, cf->name) < 0)
-    die("Cannot create control socket %s: %m", path_control_socket);
+  {
+    log(L_ERR "Cannot create control socket %s: %m", cf->name);
+    return NULL;
+  }
 
-  if (use_uid || use_gid)
+  if (cf->uid || cf->gid)
-    if (chown(path_control_socket, use_uid, use_gid) < 0)
+    if (chown(cf->name, cf->uid, cf->gid) < 0)
-      die("chown: %m");
+    {
+      log(L_ERR "Cannot chown control socket %s: %m", cf->name);
+      return NULL;
+    }
 
-  if (chmod(path_control_socket, 0660) < 0)
+  if (chmod(cf->name, cf->mode) < 0)
-    die("chmod: %m");
+  {
+    log(L_ERR "Cannot chmod control socket %s: %m", cf->name);
+    return NULL;
+  }
+
+  return l;
 }
 
+static void
+cli_init_unix(uid_t use_uid, gid_t use_gid)
+{
+  ASSERT_DIE(main_control_socket_config == NULL);
+
+  main_control_socket_config = mb_alloc(&root_pool, sizeof *main_control_socket_config);
+  *main_control_socket_config = (struct cli_config) {
+    .name = path_control_socket,
+    .uid = use_uid,
+    .gid = use_gid,
+    .mode = 0660,
+  };
+
+  ASSERT_DIE(main_control_socket == NULL);
+  cli_init();
+  main_control_socket = cli_listener(main_control_socket_config);
+  if (!main_control_socket)
+    die("Won't run without control socket");
+}
+
+
 /*
  *	PID file
  */

sysdep/unix/unix.h

@@ -114,7 +114,7 @@ extern volatile sig_atomic_t async_shutdown_flag;
 void io_init(void);
 void io_loop(void);
 void io_log_dump(void);
-int sk_open_unix(struct birdsock *s, struct birdloop *, char *name);
+int sk_open_unix(struct birdsock *s, struct birdloop *, const char *name);
 
 enum rf_mode {
   RF_APPEND = 1,