netifd.h

   1 /*
   2  * netifd - network interface daemon
   3  * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14 #ifndef __NETIFD_H
  15 #define __NETIFD_H
  16
  17 #include <sys/socket.h>
  18 #include <net/if.h>
  19
  20 #include <stdbool.h>
  21 #include <stdio.h>
  22
  23 #include <libubox/uloop.h>
  24
  25 #include <libubus.h>
  26
  27 #include "utils.h"
  28
  29 #ifdef DUMMY_MODE
  30 #define DEFAULT_MAIN_PATH       "./dummy"
  31 #define DEFAULT_HOTPLUG_PATH    "./scripts/hotplug-cmd"
  32 #define DEFAULT_RESOLV_CONF     "./tmp/resolv.conf"
  33 #else
  34 #define DEFAULT_MAIN_PATH       "/lib/netifd"
  35 #define DEFAULT_HOTPLUG_PATH    "/sbin/hotplug-call"
  36 #define DEFAULT_RESOLV_CONF     "/tmp/resolv.conf.auto"
  37 #endif
  38
  39 extern const char *resolv_conf;
  40 extern char *hotplug_cmd_path;
  41 extern unsigned int debug_mask;
  42
  43 enum {
  44         L_CRIT,
  45         L_WARNING,
  46         L_NOTICE,
  47         L_INFO,
  48         L_DEBUG
  49 };
  50
  51 enum {
  52         DEBUG_SYSTEM    = 0,
  53         DEBUG_DEVICE    = 1,
  54         DEBUG_INTERFACE = 2,
  55 };
  56
  57 #ifdef DEBUG
  58 #define DPRINTF(format, ...) fprintf(stderr, "%s(%d): " format, __func__, __LINE__, ## __VA_ARGS__)
  59 #define D(level, format, ...) do { \
  60                 if (debug_mask & (1 << (DEBUG_ ## level))) \
  61                                 DPRINTF(format, ##__VA_ARGS__); \
  62         } while (0)
  63 #else
  64 #define DPRINTF(format, ...) no_debug(0, format, ## __VA_ARGS__)
  65 #define D(level, format, ...) no_debug(DEBUG_ ## level, format, ## __VA_ARGS__)
  66 #endif
  67
  68 #define LOG_BUF_SIZE    256
  69
  70 static inline void no_debug(int level, const char *fmt, ...)
  71 {
  72 }
  73
  74 struct netifd_fd {
  75         struct list_head list;
  76         struct netifd_process *proc;
  77         int fd;
  78 };
  79
  80 struct netifd_process {
  81         struct list_head list;
  82         struct uloop_process uloop;
  83         void (*cb)(struct netifd_process *, int ret);
  84         int dir_fd;
  85
  86         struct netifd_fd log_fd;
  87         struct uloop_fd log_uloop;
  88         const char *log_prefix;
  89         char *log_buf;
  90         int log_buf_ofs;
  91         bool log_overflow;
  92 };
  93
  94 void netifd_log_message(int priority, const char *format, ...);
  95
  96 int netifd_start_process(const char **argv, char **env, struct netifd_process *proc);
  97 void netifd_kill_process(struct netifd_process *proc);
  98
  99 void netifd_fd_add(struct netifd_fd *fd);
 100 void netifd_fd_delete(struct netifd_fd *fd);
 101
 102 struct device;
 103 struct interface;
 104
 105 extern const char *main_path;
 106 void netifd_restart(void);
 107 void netifd_reload(void);
 108
 109 #endif