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 #define VHT_MUMIMO_GROUP_LEN 24
  16
  17 /* libnl 1.x compatibility code */
  18 #if !defined(CONFIG_LIBNL20) && !defined(CONFIG_LIBNL30)
  19 #  define nl_sock nl_handle
  20 #endif
  21
  22 struct nl80211_state {
  23         struct nl_sock *nl_sock;
  24         int nl80211_id;
  25 };
  26
  27 enum command_identify_by {
  28         CIB_NONE,
  29         CIB_PHY,
  30         CIB_NETDEV,
  31         CIB_WDEV,
  32 };
  33
  34 enum id_input {
  35         II_NONE,
  36         II_NETDEV,
  37         II_PHY_NAME,
  38         II_PHY_IDX,
  39         II_WDEV,
  40 };
  41
  42 #define HANDLER_RET_USAGE 1
  43 #define HANDLER_RET_DONE 3
  44
  45 struct cmd {
  46         const char *name;
  47         const char *args;
  48         const char *help;
  49         const enum nl80211_commands cmd;
  50         int nl_msg_flags;
  51         int hidden;
  52         const enum command_identify_by idby;
  53         /*
  54          * The handler should return a negative error code,
  55          * zero on success, 1 if the arguments were wrong.
  56          * Return 2 iff you provide the error message yourself.
  57          */
  58         int (*handler)(struct nl80211_state *state,
  59                        struct nl_msg *msg,
  60                        int argc, char **argv,
  61                        enum id_input id);
  62         const struct cmd *(*selector)(int argc, char **argv);
  63         const struct cmd *parent;
  64 };
  65
  66 struct chanmode {
  67         const char *name;
  68         unsigned int width;
  69         int freq1_diff;
  70         int chantype; /* for older kernel */
  71 };
  72
  73 struct chandef {
  74         enum nl80211_chan_width width;
  75
  76         unsigned int control_freq;
  77         unsigned int center_freq1;
  78         unsigned int center_freq2;
  79 };
  80
  81 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
  82 #define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y))
  83
  84 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\
  85         static struct cmd                                               \
  86         __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\
  87         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  88                 .name = (_name),                                        \
  89                 .args = (_args),                                        \
  90                 .cmd = (_nlcmd),                                        \
  91                 .nl_msg_flags = (_flags),                               \
  92                 .hidden = (_hidden),                                    \
  93                 .idby = (_idby),                                        \
  94                 .handler = (_handler),                                  \
  95                 .help = (_help),                                        \
  96                 .parent = _section,                                     \
  97                 .selector = (_sel),                                     \
  98         }
  99 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\
 100         __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\
 101         static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden
 102 #define COMMAND(section, name, args, cmd, flags, idby, handler, help)   \
 103         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL)
 104 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\
 105         __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias)
 106 #define HIDDEN(section, name, args, cmd, flags, idby, handler)          \
 107         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL)
 108
 109 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help)  \
 110         struct cmd                                                      \
 111         __section ## _ ## _name                                         \
 112         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 113                 .name = (#_name),                                       \
 114                 .args = (_args),                                        \
 115                 .cmd = (_nlcmd),                                        \
 116                 .nl_msg_flags = (_flags),                               \
 117                 .idby = (_idby),                                        \
 118                 .handler = (_handler),                                  \
 119                 .help = (_help),                                        \
 120          }
 121 #define SECTION(_name)                                                  \
 122         struct cmd __section ## _ ## _name                              \
 123         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 124                 .name = (#_name),                                       \
 125                 .hidden = 1,                                            \
 126         }
 127
 128 #define DECLARE_SECTION(_name)                                          \
 129         extern struct cmd __section ## _ ## _name;
 130
 131 extern const char iw_version[];
 132
 133 extern int iw_debug;
 134
 135 int handle_cmd(struct nl80211_state *state, enum id_input idby,
 136                int argc, char **argv);
 137
 138 struct print_event_args {
 139         struct timeval ts; /* internal */
 140         bool have_ts; /* must be set false */
 141         bool frame, time, reltime;
 142 };
 143
 144 __u32 listen_events(struct nl80211_state *state,
 145                     const int n_waits, const __u32 *waits);
 146 int __prepare_listen_events(struct nl80211_state *state);
 147 __u32 __do_listen_events(struct nl80211_state *state,
 148                          const int n_waits, const __u32 *waits,
 149                          struct print_event_args *args);
 150
 151 int valid_handler(struct nl_msg *msg, void *arg);
 152 void register_handler(int (*handler)(struct nl_msg *, void *), void *data);
 153
 154 int mac_addr_a2n(unsigned char *mac_addr, char *arg);
 155 void mac_addr_n2a(char *mac_addr, unsigned char *arg);
 156 int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len,
 157                    unsigned char **mask);
 158 unsigned char *parse_hex(char *hex, size_t *outlen);
 159
 160 int parse_keys(struct nl_msg *msg, char **argv, int argc);
 161 int parse_freqchan(struct chandef *chandef, bool chan, int argc, char **argv, int *parsed);
 162 enum nl80211_chan_width str_to_bw(const char *str);
 163 int put_chandef(struct nl_msg *msg, struct chandef *chandef);
 164
 165 void print_ht_mcs(const __u8 *mcs);
 166 void print_ampdu_length(__u8 exponent);
 167 void print_ampdu_spacing(__u8 spacing);
 168 void print_ht_capability(__u16 cap);
 169 void print_vht_info(__u32 capa, const __u8 *mcs);
 170
 171 char *channel_width_name(enum nl80211_chan_width width);
 172 const char *iftype_name(enum nl80211_iftype iftype);
 173 const char *command_name(enum nl80211_commands cmd);
 174 int ieee80211_channel_to_frequency(int chan, enum nl80211_band band);
 175 int ieee80211_frequency_to_channel(int freq);
 176
 177 void print_ssid_escaped(const uint8_t len, const uint8_t *data);
 178
 179 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group);
 180
 181 char *reg_initiator_to_string(__u8 initiator);
 182
 183 const char *get_reason_str(uint16_t reason);
 184 const char *get_status_str(uint16_t status);
 185
 186 enum print_ie_type {
 187         PRINT_SCAN,
 188         PRINT_LINK,
 189 };
 190
 191 #define BIT(x) (1ULL<<(x))
 192
 193 void print_ies(unsigned char *ie, int ielen, bool unknown,
 194                enum print_ie_type ptype);
 195
 196 void parse_bitrate(struct nlattr *bitrate_attr, char *buf, int buflen);
 197 void iw_hexdump(const char *prefix, const __u8 *data, size_t len);
 198
 199 int get_cf1(const struct chanmode *chanmode, unsigned long freq);
 200
 201 #define SCHED_SCAN_OPTIONS "[interval <in_msecs> | scan_plans [<interval_secs:iterations>*] <interval_secs>] "  \
 202         "[delay <in_secs>] [freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] "  \
 203         "[randomise[=<addr>/<mask>]]"
 204 int parse_sched_scan(struct nl_msg *msg, int *argc, char ***argv);
 205
 206 DECLARE_SECTION(switch);
 207 DECLARE_SECTION(set);
 208 DECLARE_SECTION(get);
 209
 210 #endif /* __IW_H */