iw.h

   1 #ifndef __IW_H
   2 #define __IW_H
   3
   4 #include <stdbool.h>
   5 #include <netlink/netlink.h>
   6 #include <netlink/genl/genl.h>
   7 #include <netlink/genl/family.h>
   8 #include <netlink/genl/ctrl.h>
   9
  10 #include "nl80211.h"
  11
  12 #define ETH_ALEN 6
  13
  14 /* libnl 1.x compatibility code */
  15 #if !defined(CONFIG_LIBNL20) && !defined(CONFIG_LIBNL30)
  16 #  define nl_sock nl_handle
  17 #endif
  18
  19 struct nl80211_state {
  20         struct nl_sock *nl_sock;
  21         struct nl_cache *nl_cache;
  22         struct genl_family *nl80211;
  23 };
  24
  25 enum command_identify_by {
  26         CIB_NONE,
  27         CIB_PHY,
  28         CIB_NETDEV,
  29 };
  30
  31 enum id_input {
  32         II_NONE,
  33         II_NETDEV,
  34         II_PHY_NAME,
  35         II_PHY_IDX,
  36 };
  37
  38 struct cmd {
  39         const char *name;
  40         const char *args;
  41         const char *help;
  42         const enum nl80211_commands cmd;
  43         int nl_msg_flags;
  44         int hidden;
  45         const enum command_identify_by idby;
  46         /*
  47          * The handler should return a negative error code,
  48          * zero on success, 1 if the arguments were wrong
  49          * and the usage message should and 2 otherwise.
  50          */
  51         int (*handler)(struct nl80211_state *state,
  52                        struct nl_cb *cb,
  53                        struct nl_msg *msg,
  54                        int argc, char **argv);
  55         const struct cmd *(*selector)(int argc, char **argv);
  56         const struct cmd *parent;
  57 };
  58
  59 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
  60 #define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y))
  61
  62 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\
  63         static struct cmd                                               \
  64         __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\
  65         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  66                 .name = (_name),                                        \
  67                 .args = (_args),                                        \
  68                 .cmd = (_nlcmd),                                        \
  69                 .nl_msg_flags = (_flags),                               \
  70                 .hidden = (_hidden),                                    \
  71                 .idby = (_idby),                                        \
  72                 .handler = (_handler),                                  \
  73                 .help = (_help),                                        \
  74                 .parent = _section,                                     \
  75                 .selector = (_sel),                                     \
  76         }
  77 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\
  78         __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\
  79         static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden
  80 #define COMMAND(section, name, args, cmd, flags, idby, handler, help)   \
  81         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL)
  82 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\
  83         __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias)
  84 #define HIDDEN(section, name, args, cmd, flags, idby, handler)          \
  85         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL)
  86
  87 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help)  \
  88         struct cmd                                                      \
  89         __section ## _ ## _name                                         \
  90         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  91                 .name = (#_name),                                       \
  92                 .args = (_args),                                        \
  93                 .cmd = (_nlcmd),                                        \
  94                 .nl_msg_flags = (_flags),                               \
  95                 .idby = (_idby),                                        \
  96                 .handler = (_handler),                                  \
  97                 .help = (_help),                                        \
  98          }
  99 #define SECTION(_name)                                                  \
 100         struct cmd __section ## _ ## _name                              \
 101         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 102                 .name = (#_name),                                       \
 103                 .hidden = 1,                                            \
 104         }
 105
 106 #define DECLARE_SECTION(_name)                                          \
 107         extern struct cmd __section ## _ ## _name;
 108
 109 extern const char iw_version[];
 110
 111 extern int iw_debug;
 112
 113 int handle_cmd(struct nl80211_state *state, enum id_input idby,
 114                int argc, char **argv);
 115
 116 struct print_event_args {
 117         struct timeval ts; /* internal */
 118         bool have_ts; /* must be set false */
 119         bool frame, time, reltime;
 120 };
 121
 122 __u32 listen_events(struct nl80211_state *state,
 123                     const int n_waits, const __u32 *waits);
 124 int __prepare_listen_events(struct nl80211_state *state);
 125 __u32 __do_listen_events(struct nl80211_state *state,
 126                          const int n_waits, const __u32 *waits,
 127                          struct print_event_args *args);
 128
 129
 130 int mac_addr_a2n(unsigned char *mac_addr, char *arg);
 131 void mac_addr_n2a(char *mac_addr, unsigned char *arg);
 132 int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len,
 133                    unsigned char **mask);
 134 unsigned char *parse_hex(char *hex, size_t *outlen);
 135
 136 int parse_keys(struct nl_msg *msg, char **argv, int argc);
 137
 138 void print_ht_mcs(const __u8 *mcs);
 139 void print_ampdu_length(__u8 exponent);
 140 void print_ampdu_spacing(__u8 spacing);
 141 void print_ht_capability(__u16 cap);
 142
 143 const char *iftype_name(enum nl80211_iftype iftype);
 144 const char *command_name(enum nl80211_commands cmd);
 145 int ieee80211_channel_to_frequency(int chan);
 146 int ieee80211_frequency_to_channel(int freq);
 147
 148 void print_ssid_escaped(const uint8_t len, const uint8_t *data);
 149
 150 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group);
 151
 152 char *reg_initiator_to_string(__u8 initiator);
 153
 154 const char *get_reason_str(uint16_t reason);
 155 const char *get_status_str(uint16_t status);
 156
 157 enum print_ie_type {
 158         PRINT_SCAN,
 159         PRINT_LINK,
 160 };
 161
 162 #define BIT(x) (1ULL<<(x))
 163
 164 void print_ies(unsigned char *ie, int ielen, bool unknown,
 165                enum print_ie_type ptype);
 166
 167
 168 DECLARE_SECTION(set);
 169 DECLARE_SECTION(get);
 170
 171 #endif /* __IW_H */