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 #include <endian.h>
  10
  11 #include "nl80211.h"
  12 #include "ieee80211.h"
  13
  14 #define ETH_ALEN 6
  15
  16 /* libnl 1.x compatibility code */
  17 #if !defined(CONFIG_LIBNL20) && !defined(CONFIG_LIBNL30)
  18 #  define nl_sock nl_handle
  19 #endif
  20
  21 struct nl80211_state {
  22         struct nl_sock *nl_sock;
  23         int nl80211_id;
  24 };
  25
  26 enum command_identify_by {
  27         CIB_NONE,
  28         CIB_PHY,
  29         CIB_NETDEV,
  30         CIB_WDEV,
  31 };
  32
  33 enum id_input {
  34         II_NONE,
  35         II_NETDEV,
  36         II_PHY_NAME,
  37         II_PHY_IDX,
  38         II_WDEV,
  39 };
  40
  41 struct cmd {
  42         const char *name;
  43         const char *args;
  44         const char *help;
  45         const enum nl80211_commands cmd;
  46         int nl_msg_flags;
  47         int hidden;
  48         const enum command_identify_by idby;
  49         /*
  50          * The handler should return a negative error code,
  51          * zero on success, 1 if the arguments were wrong.
  52          * Return 2 iff you provide the error message yourself.
  53          */
  54         int (*handler)(struct nl80211_state *state,
  55                        struct nl_msg *msg,
  56                        int argc, char **argv,
  57                        enum id_input id);
  58         const struct cmd *(*selector)(int argc, char **argv);
  59         const struct cmd *parent;
  60 };
  61
  62 struct chanmode {
  63         const char *name;
  64         unsigned int width;
  65         int freq1_diff;
  66         int chantype; /* for older kernel */
  67 };
  68
  69 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
  70 #define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y))
  71
  72 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\
  73         static struct cmd                                               \
  74         __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\
  75         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  76                 .name = (_name),                                        \
  77                 .args = (_args),                                        \
  78                 .cmd = (_nlcmd),                                        \
  79                 .nl_msg_flags = (_flags),                               \
  80                 .hidden = (_hidden),                                    \
  81                 .idby = (_idby),                                        \
  82                 .handler = (_handler),                                  \
  83                 .help = (_help),                                        \
  84                 .parent = _section,                                     \
  85                 .selector = (_sel),                                     \
  86         }
  87 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\
  88         __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\
  89         static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden
  90 #define COMMAND(section, name, args, cmd, flags, idby, handler, help)   \
  91         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL)
  92 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\
  93         __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias)
  94 #define HIDDEN(section, name, args, cmd, flags, idby, handler)          \
  95         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL)
  96
  97 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help)  \
  98         struct cmd                                                      \
  99         __section ## _ ## _name                                         \
 100         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 101                 .name = (#_name),                                       \
 102                 .args = (_args),                                        \
 103                 .cmd = (_nlcmd),                                        \
 104                 .nl_msg_flags = (_flags),                               \
 105                 .idby = (_idby),                                        \
 106                 .handler = (_handler),                                  \
 107                 .help = (_help),                                        \
 108          }
 109 #define SECTION(_name)                                                  \
 110         struct cmd __section ## _ ## _name                              \
 111         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 112                 .name = (#_name),                                       \
 113                 .hidden = 1,                                            \
 114         }
 115
 116 #define DECLARE_SECTION(_name)                                          \
 117         extern struct cmd __section ## _ ## _name;
 118
 119 extern const char iw_version[];
 120
 121 extern int iw_debug;
 122
 123 int handle_cmd(struct nl80211_state *state, enum id_input idby,
 124                int argc, char **argv);
 125
 126 struct print_event_args {
 127         struct timeval ts; /* internal */
 128         bool have_ts; /* must be set false */
 129         bool frame, time, reltime;
 130 };
 131
 132 __u32 listen_events(struct nl80211_state *state,
 133                     const int n_waits, const __u32 *waits);
 134 int __prepare_listen_events(struct nl80211_state *state);
 135 __u32 __do_listen_events(struct nl80211_state *state,
 136                          const int n_waits, const __u32 *waits,
 137                          struct print_event_args *args);
 138
 139 int valid_handler(struct nl_msg *msg, void *arg);
 140 void register_handler(int (*handler)(struct nl_msg *, void *), void *data);
 141
 142 int mac_addr_a2n(unsigned char *mac_addr, char *arg);
 143 void mac_addr_n2a(char *mac_addr, unsigned char *arg);
 144 int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len,
 145                    unsigned char **mask);
 146 unsigned char *parse_hex(char *hex, size_t *outlen);
 147
 148 int parse_keys(struct nl_msg *msg, char **argv, int argc);
 149
 150 void print_ht_mcs(const __u8 *mcs);
 151 void print_ampdu_length(__u8 exponent);
 152 void print_ampdu_spacing(__u8 spacing);
 153 void print_ht_capability(__u16 cap);
 154 void print_vht_info(__u32 capa, const __u8 *mcs);
 155
 156 char *channel_width_name(enum nl80211_chan_width width);
 157 const char *iftype_name(enum nl80211_iftype iftype);
 158 const char *command_name(enum nl80211_commands cmd);
 159 int ieee80211_channel_to_frequency(int chan, enum nl80211_band band);
 160 int ieee80211_frequency_to_channel(int freq);
 161
 162 void print_ssid_escaped(const uint8_t len, const uint8_t *data);
 163
 164 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group);
 165
 166 char *reg_initiator_to_string(__u8 initiator);
 167
 168 const char *get_reason_str(uint16_t reason);
 169 const char *get_status_str(uint16_t status);
 170
 171 enum print_ie_type {
 172         PRINT_SCAN,
 173         PRINT_LINK,
 174 };
 175
 176 #define BIT(x) (1ULL<<(x))
 177
 178 void print_ies(unsigned char *ie, int ielen, bool unknown,
 179                enum print_ie_type ptype);
 180
 181 void parse_bitrate(struct nlattr *bitrate_attr, char *buf, int buflen);
 182 void iw_hexdump(const char *prefix, const __u8 *data, size_t len);
 183
 184 int get_cf1(const struct chanmode *chanmode, unsigned long freq);
 185
 186 #define SCHED_SCAN_OPTIONS "interval <in_msecs> [delay <in_secs>] " \
 187         "[freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]]"
 188 int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv);
 189
 190 DECLARE_SECTION(set);
 191 DECLARE_SECTION(get);
 192
 193 #endif /* __IW_H */