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 #define HANDLER_RET_DONE 3
  42
  43 struct cmd {
  44         const char *name;
  45         const char *args;
  46         const char *help;
  47         const enum nl80211_commands cmd;
  48         int nl_msg_flags;
  49         int hidden;
  50         const enum command_identify_by idby;
  51         /*
  52          * The handler should return a negative error code,
  53          * zero on success, 1 if the arguments were wrong.
  54          * Return 2 iff you provide the error message yourself.
  55          */
  56         int (*handler)(struct nl80211_state *state,
  57                        struct nl_msg *msg,
  58                        int argc, char **argv,
  59                        enum id_input id);
  60         const struct cmd *(*selector)(int argc, char **argv);
  61         const struct cmd *parent;
  62 };
  63
  64 struct chanmode {
  65         const char *name;
  66         unsigned int width;
  67         int freq1_diff;
  68         int chantype; /* for older kernel */
  69 };
  70
  71 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
  72 #define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y))
  73
  74 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\
  75         static struct cmd                                               \
  76         __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\
  77         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  78                 .name = (_name),                                        \
  79                 .args = (_args),                                        \
  80                 .cmd = (_nlcmd),                                        \
  81                 .nl_msg_flags = (_flags),                               \
  82                 .hidden = (_hidden),                                    \
  83                 .idby = (_idby),                                        \
  84                 .handler = (_handler),                                  \
  85                 .help = (_help),                                        \
  86                 .parent = _section,                                     \
  87                 .selector = (_sel),                                     \
  88         }
  89 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\
  90         __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\
  91         static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden
  92 #define COMMAND(section, name, args, cmd, flags, idby, handler, help)   \
  93         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL)
  94 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\
  95         __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias)
  96 #define HIDDEN(section, name, args, cmd, flags, idby, handler)          \
  97         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL)
  98
  99 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help)  \
 100         struct cmd                                                      \
 101         __section ## _ ## _name                                         \
 102         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 103                 .name = (#_name),                                       \
 104                 .args = (_args),                                        \
 105                 .cmd = (_nlcmd),                                        \
 106                 .nl_msg_flags = (_flags),                               \
 107                 .idby = (_idby),                                        \
 108                 .handler = (_handler),                                  \
 109                 .help = (_help),                                        \
 110          }
 111 #define SECTION(_name)                                                  \
 112         struct cmd __section ## _ ## _name                              \
 113         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 114                 .name = (#_name),                                       \
 115                 .hidden = 1,                                            \
 116         }
 117
 118 #define DECLARE_SECTION(_name)                                          \
 119         extern struct cmd __section ## _ ## _name;
 120
 121 extern const char iw_version[];
 122
 123 extern int iw_debug;
 124
 125 int handle_cmd(struct nl80211_state *state, enum id_input idby,
 126                int argc, char **argv);
 127
 128 struct print_event_args {
 129         struct timeval ts; /* internal */
 130         bool have_ts; /* must be set false */
 131         bool frame, time, reltime;
 132 };
 133
 134 __u32 listen_events(struct nl80211_state *state,
 135                     const int n_waits, const __u32 *waits);
 136 int __prepare_listen_events(struct nl80211_state *state);
 137 __u32 __do_listen_events(struct nl80211_state *state,
 138                          const int n_waits, const __u32 *waits,
 139                          struct print_event_args *args);
 140
 141 int valid_handler(struct nl_msg *msg, void *arg);
 142 void register_handler(int (*handler)(struct nl_msg *, void *), void *data);
 143
 144 int mac_addr_a2n(unsigned char *mac_addr, char *arg);
 145 void mac_addr_n2a(char *mac_addr, unsigned char *arg);
 146 int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len,
 147                    unsigned char **mask);
 148 unsigned char *parse_hex(char *hex, size_t *outlen);
 149
 150 int parse_keys(struct nl_msg *msg, char **argv, int argc);
 151
 152 void print_ht_mcs(const __u8 *mcs);
 153 void print_ampdu_length(__u8 exponent);
 154 void print_ampdu_spacing(__u8 spacing);
 155 void print_ht_capability(__u16 cap);
 156 void print_vht_info(__u32 capa, const __u8 *mcs);
 157
 158 char *channel_width_name(enum nl80211_chan_width width);
 159 const char *iftype_name(enum nl80211_iftype iftype);
 160 const char *command_name(enum nl80211_commands cmd);
 161 int ieee80211_channel_to_frequency(int chan, enum nl80211_band band);
 162 int ieee80211_frequency_to_channel(int freq);
 163
 164 void print_ssid_escaped(const uint8_t len, const uint8_t *data);
 165
 166 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group);
 167
 168 char *reg_initiator_to_string(__u8 initiator);
 169
 170 const char *get_reason_str(uint16_t reason);
 171 const char *get_status_str(uint16_t status);
 172
 173 enum print_ie_type {
 174         PRINT_SCAN,
 175         PRINT_LINK,
 176 };
 177
 178 #define BIT(x) (1ULL<<(x))
 179
 180 void print_ies(unsigned char *ie, int ielen, bool unknown,
 181                enum print_ie_type ptype);
 182
 183 void parse_bitrate(struct nlattr *bitrate_attr, char *buf, int buflen);
 184 void iw_hexdump(const char *prefix, const __u8 *data, size_t len);
 185
 186 int get_cf1(const struct chanmode *chanmode, unsigned long freq);
 187
 188 #define SCHED_SCAN_OPTIONS "interval <in_msecs> [delay <in_secs>] " \
 189         "[freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]]"
 190 int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv);
 191
 192 DECLARE_SECTION(set);
 193 DECLARE_SECTION(get);
 194
 195 #endif /* __IW_H */