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 #ifndef CONFIG_LIBNL20
  15 #  define nl_sock nl_handle
  16 #endif
  17
  18 struct nl80211_state {
  19         struct nl_sock *nl_sock;
  20         struct nl_cache *nl_cache;
  21         struct genl_family *nl80211;
  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
  60 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\
  61         static struct cmd                                               \
  62         __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\
  63         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  64                 .name = (_name),                                        \
  65                 .args = (_args),                                        \
  66                 .cmd = (_nlcmd),                                        \
  67                 .nl_msg_flags = (_flags),                               \
  68                 .hidden = (_hidden),                                    \
  69                 .idby = (_idby),                                        \
  70                 .handler = (_handler),                                  \
  71                 .help = (_help),                                        \
  72                 .parent = _section,                                     \
  73                 .selector = (_sel),                                     \
  74         }
  75 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\
  76         __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\
  77         static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden
  78 #define COMMAND(section, name, args, cmd, flags, idby, handler, help)   \
  79         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL)
  80 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\
  81         __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias)
  82 #define HIDDEN(section, name, args, cmd, flags, idby, handler)          \
  83         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL)
  84
  85 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help)  \
  86         struct cmd                                                      \
  87         __section ## _ ## _name                                         \
  88         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  89                 .name = (#_name),                                       \
  90                 .args = (_args),                                        \
  91                 .cmd = (_nlcmd),                                        \
  92                 .nl_msg_flags = (_flags),                               \
  93                 .idby = (_idby),                                        \
  94                 .handler = (_handler),                                  \
  95                 .help = (_help),                                        \
  96          }
  97 #define SECTION(_name)                                                  \
  98         struct cmd __section ## _ ## _name                              \
  99         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 100                 .name = (#_name),                                       \
 101                 .hidden = 1,                                            \
 102         }
 103
 104 #define DECLARE_SECTION(_name)                                          \
 105         extern struct cmd __section ## _ ## _name;
 106
 107 extern const char iw_version[];
 108
 109 extern int iw_debug;
 110
 111 int handle_cmd(struct nl80211_state *state, enum id_input idby,
 112                int argc, char **argv);
 113
 114 struct print_event_args {
 115         struct timeval ts; /* internal */
 116         bool have_ts; /* must be set false */
 117         bool frame, time, reltime;
 118 };
 119
 120 __u32 listen_events(struct nl80211_state *state,
 121                     const int n_waits, const __u32 *waits);
 122 int __prepare_listen_events(struct nl80211_state *state);
 123 __u32 __do_listen_events(struct nl80211_state *state,
 124                          const int n_waits, const __u32 *waits,
 125                          struct print_event_args *args);
 126
 127
 128 int mac_addr_a2n(unsigned char *mac_addr, char *arg);
 129 void mac_addr_n2a(char *mac_addr, unsigned char *arg);
 130 unsigned char *parse_hex(char *hex, size_t *outlen);
 131
 132 int parse_keys(struct nl_msg *msg, char **argv, int argc);
 133
 134 void print_ht_mcs(const __u8 *mcs);
 135 void print_ampdu_length(__u8 exponent);
 136 void print_ampdu_spacing(__u8 spacing);
 137 void print_ht_capability(__u16 cap);
 138
 139 const char *iftype_name(enum nl80211_iftype iftype);
 140 const char *command_name(enum nl80211_commands cmd);
 141 int ieee80211_channel_to_frequency(int chan);
 142 int ieee80211_frequency_to_channel(int freq);
 143
 144 void print_ssid_escaped(const uint8_t len, const uint8_t *data);
 145
 146 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group);
 147
 148 char *reg_initiator_to_string(__u8 initiator);
 149
 150 const char *get_reason_str(uint16_t reason);
 151 const char *get_status_str(uint16_t status);
 152
 153 enum print_ie_type {
 154         PRINT_SCAN,
 155         PRINT_LINK,
 156 };
 157
 158 #define BIT(x) (1ULL<<(x))
 159
 160 void print_ies(unsigned char *ie, int ielen, bool unknown,
 161                enum print_ie_type ptype);
 162
 163
 164 DECLARE_SECTION(set);
 165 DECLARE_SECTION(get);
 166
 167 #endif /* __IW_H */