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         int nl80211_id;
  22 };
  23
  24 enum command_identify_by {
  25         CIB_NONE,
  26         CIB_PHY,
  27         CIB_NETDEV,
  28 };
  29
  30 enum id_input {
  31         II_NONE,
  32         II_NETDEV,
  33         II_PHY_NAME,
  34         II_PHY_IDX,
  35 };
  36
  37 struct cmd {
  38         const char *name;
  39         const char *args;
  40         const char *help;
  41         const enum nl80211_commands cmd;
  42         int nl_msg_flags;
  43         int hidden;
  44         const enum command_identify_by idby;
  45         /*
  46          * The handler should return a negative error code,
  47          * zero on success, 1 if the arguments were wrong
  48          * and the usage message should and 2 otherwise.
  49          */
  50         int (*handler)(struct nl80211_state *state,
  51                        struct nl_cb *cb,
  52                        struct nl_msg *msg,
  53                        int argc, char **argv);
  54         const struct cmd *(*selector)(int argc, char **argv);
  55         const struct cmd *parent;
  56 };
  57
  58 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
  59 #define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y))
  60
  61 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\
  62         static struct cmd                                               \
  63         __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\
  64         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  65                 .name = (_name),                                        \
  66                 .args = (_args),                                        \
  67                 .cmd = (_nlcmd),                                        \
  68                 .nl_msg_flags = (_flags),                               \
  69                 .hidden = (_hidden),                                    \
  70                 .idby = (_idby),                                        \
  71                 .handler = (_handler),                                  \
  72                 .help = (_help),                                        \
  73                 .parent = _section,                                     \
  74                 .selector = (_sel),                                     \
  75         }
  76 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\
  77         __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\
  78         static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden
  79 #define COMMAND(section, name, args, cmd, flags, idby, handler, help)   \
  80         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL)
  81 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\
  82         __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias)
  83 #define HIDDEN(section, name, args, cmd, flags, idby, handler)          \
  84         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL)
  85
  86 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help)  \
  87         struct cmd                                                      \
  88         __section ## _ ## _name                                         \
  89         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  90                 .name = (#_name),                                       \
  91                 .args = (_args),                                        \
  92                 .cmd = (_nlcmd),                                        \
  93                 .nl_msg_flags = (_flags),                               \
  94                 .idby = (_idby),                                        \
  95                 .handler = (_handler),                                  \
  96                 .help = (_help),                                        \
  97          }
  98 #define SECTION(_name)                                                  \
  99         struct cmd __section ## _ ## _name                              \
 100         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 101                 .name = (#_name),                                       \
 102                 .hidden = 1,                                            \
 103         }
 104
 105 #define DECLARE_SECTION(_name)                                          \
 106         extern struct cmd __section ## _ ## _name;
 107
 108 extern const char iw_version[];
 109
 110 extern int iw_debug;
 111
 112 int handle_cmd(struct nl80211_state *state, enum id_input idby,
 113                int argc, char **argv);
 114
 115 struct print_event_args {
 116         struct timeval ts; /* internal */
 117         bool have_ts; /* must be set false */
 118         bool frame, time, reltime;
 119 };
 120
 121 __u32 listen_events(struct nl80211_state *state,
 122                     const int n_waits, const __u32 *waits);
 123 int __prepare_listen_events(struct nl80211_state *state);
 124 __u32 __do_listen_events(struct nl80211_state *state,
 125                          const int n_waits, const __u32 *waits,
 126                          struct print_event_args *args);
 127
 128
 129 int mac_addr_a2n(unsigned char *mac_addr, char *arg);
 130 void mac_addr_n2a(char *mac_addr, unsigned char *arg);
 131 int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len,
 132                    unsigned char **mask);
 133 unsigned char *parse_hex(char *hex, size_t *outlen);
 134
 135 int parse_keys(struct nl_msg *msg, char **argv, int argc);
 136
 137 void print_ht_mcs(const __u8 *mcs);
 138 void print_ampdu_length(__u8 exponent);
 139 void print_ampdu_spacing(__u8 spacing);
 140 void print_ht_capability(__u16 cap);
 141
 142 const char *iftype_name(enum nl80211_iftype iftype);
 143 const char *command_name(enum nl80211_commands cmd);
 144 int ieee80211_channel_to_frequency(int chan);
 145 int ieee80211_frequency_to_channel(int freq);
 146
 147 void print_ssid_escaped(const uint8_t len, const uint8_t *data);
 148
 149 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group);
 150
 151 char *reg_initiator_to_string(__u8 initiator);
 152
 153 const char *get_reason_str(uint16_t reason);
 154 const char *get_status_str(uint16_t status);
 155
 156 enum print_ie_type {
 157         PRINT_SCAN,
 158         PRINT_LINK,
 159 };
 160
 161 #define BIT(x) (1ULL<<(x))
 162
 163 void print_ies(unsigned char *ie, int ielen, bool unknown,
 164                enum print_ie_type ptype);
 165
 166
 167 DECLARE_SECTION(set);
 168 DECLARE_SECTION(get);
 169
 170 #endif /* __IW_H */