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 };
  31
  32 enum id_input {
  33         II_NONE,
  34         II_NETDEV,
  35         II_PHY_NAME,
  36         II_PHY_IDX,
  37 };
  38
  39 struct cmd {
  40         const char *name;
  41         const char *args;
  42         const char *help;
  43         const enum nl80211_commands cmd;
  44         int nl_msg_flags;
  45         int hidden;
  46         const enum command_identify_by idby;
  47         /*
  48          * The handler should return a negative error code,
  49          * zero on success, 1 if the arguments were wrong
  50          * and the usage message should and 2 otherwise.
  51          */
  52         int (*handler)(struct nl80211_state *state,
  53                        struct nl_cb *cb,
  54                        struct nl_msg *msg,
  55                        int argc, char **argv);
  56         const struct cmd *(*selector)(int argc, char **argv);
  57         const struct cmd *parent;
  58 };
  59
  60 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
  61 #define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y))
  62
  63 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\
  64         static struct cmd                                               \
  65         __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\
  66         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  67                 .name = (_name),                                        \
  68                 .args = (_args),                                        \
  69                 .cmd = (_nlcmd),                                        \
  70                 .nl_msg_flags = (_flags),                               \
  71                 .hidden = (_hidden),                                    \
  72                 .idby = (_idby),                                        \
  73                 .handler = (_handler),                                  \
  74                 .help = (_help),                                        \
  75                 .parent = _section,                                     \
  76                 .selector = (_sel),                                     \
  77         }
  78 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\
  79         __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\
  80         static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden
  81 #define COMMAND(section, name, args, cmd, flags, idby, handler, help)   \
  82         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL)
  83 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\
  84         __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias)
  85 #define HIDDEN(section, name, args, cmd, flags, idby, handler)          \
  86         __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL)
  87
  88 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help)  \
  89         struct cmd                                                      \
  90         __section ## _ ## _name                                         \
  91         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
  92                 .name = (#_name),                                       \
  93                 .args = (_args),                                        \
  94                 .cmd = (_nlcmd),                                        \
  95                 .nl_msg_flags = (_flags),                               \
  96                 .idby = (_idby),                                        \
  97                 .handler = (_handler),                                  \
  98                 .help = (_help),                                        \
  99          }
 100 #define SECTION(_name)                                                  \
 101         struct cmd __section ## _ ## _name                              \
 102         __attribute__((used)) __attribute__((section("__cmd"))) = {     \
 103                 .name = (#_name),                                       \
 104                 .hidden = 1,                                            \
 105         }
 106
 107 #define DECLARE_SECTION(_name)                                          \
 108         extern struct cmd __section ## _ ## _name;
 109
 110 extern const char iw_version[];
 111
 112 extern int iw_debug;
 113
 114 int handle_cmd(struct nl80211_state *state, enum id_input idby,
 115                int argc, char **argv);
 116
 117 struct print_event_args {
 118         struct timeval ts; /* internal */
 119         bool have_ts; /* must be set false */
 120         bool frame, time, reltime;
 121 };
 122
 123 __u32 listen_events(struct nl80211_state *state,
 124                     const int n_waits, const __u32 *waits);
 125 int __prepare_listen_events(struct nl80211_state *state);
 126 __u32 __do_listen_events(struct nl80211_state *state,
 127                          const int n_waits, const __u32 *waits,
 128                          struct print_event_args *args);
 129
 130
 131 int mac_addr_a2n(unsigned char *mac_addr, char *arg);
 132 void mac_addr_n2a(char *mac_addr, unsigned char *arg);
 133 int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len,
 134                    unsigned char **mask);
 135 unsigned char *parse_hex(char *hex, size_t *outlen);
 136
 137 int parse_keys(struct nl_msg *msg, char **argv, int argc);
 138
 139 void print_ht_mcs(const __u8 *mcs);
 140 void print_ampdu_length(__u8 exponent);
 141 void print_ampdu_spacing(__u8 spacing);
 142 void print_ht_capability(__u16 cap);
 143
 144 const char *iftype_name(enum nl80211_iftype iftype);
 145 const char *command_name(enum nl80211_commands cmd);
 146 int ieee80211_channel_to_frequency(int chan);
 147 int ieee80211_frequency_to_channel(int freq);
 148
 149 void print_ssid_escaped(const uint8_t len, const uint8_t *data);
 150
 151 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group);
 152
 153 char *reg_initiator_to_string(__u8 initiator);
 154
 155 const char *get_reason_str(uint16_t reason);
 156 const char *get_status_str(uint16_t status);
 157
 158 enum print_ie_type {
 159         PRINT_SCAN,
 160         PRINT_LINK,
 161 };
 162
 163 #define BIT(x) (1ULL<<(x))
 164
 165 void print_ies(unsigned char *ie, int ielen, bool unknown,
 166                enum print_ie_type ptype);
 167
 168
 169 DECLARE_SECTION(set);
 170 DECLARE_SECTION(get);
 171
 172 #endif /* __IW_H */