1 /* 2 * Author: Xianjun Jiao 3 * SPDX-FileCopyrightText: 2019 UGent 4 * SPDX-License-Identifier: AGPL-3.0-or-later 5 */ 6 7 #ifndef __IW_H 8 #define __IW_H 9 10 #include <stdbool.h> 11 #include <netlink/netlink.h> 12 #include <netlink/genl/genl.h> 13 #include <netlink/genl/family.h> 14 #include <netlink/genl/ctrl.h> 15 #include <endian.h> 16 17 #include "nl80211.h" 18 //#include "ieee80211.h" 19 20 #define ETH_ALEN 6 21 22 /* libnl 1.x compatibility code */ 23 #if !defined(CONFIG_LIBNL20) && !defined(CONFIG_LIBNL30) 24 # define nl_sock nl_handle 25 #endif 26 27 struct nl80211_state { 28 struct nl_sock *nl_sock; 29 int nl80211_id; 30 }; 31 32 enum command_identify_by { 33 CIB_NONE, 34 CIB_PHY, 35 CIB_NETDEV, 36 CIB_WDEV, 37 }; 38 39 enum id_input { 40 II_NONE, 41 II_NETDEV, 42 II_PHY_NAME, 43 II_PHY_IDX, 44 II_WDEV, 45 }; 46 47 struct cmd { 48 const char *name; 49 const char *args; 50 const char *help; 51 const enum nl80211_commands cmd; 52 int nl_msg_flags; 53 int hidden; 54 const enum command_identify_by idby; 55 /* 56 * The handler should return a negative error code, 57 * zero on success, 1 if the arguments were wrong 58 * and the usage message should and 2 otherwise. 59 */ 60 int (*handler)(struct nl80211_state *state, 61 struct nl_cb *cb, 62 struct nl_msg *msg, 63 int argc, char **argv, 64 enum id_input id); 65 const struct cmd *(*selector)(int argc, char **argv); 66 const struct cmd *parent; 67 }; 68 69 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0])) 70 #define DIV_ROUND_UP(x, y) (((x) + (y - 1)) / (y)) 71 72 #define __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel)\ 73 static struct cmd \ 74 __cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden\ 75 __attribute__((used)) __attribute__((section("__cmd"))) = { \ 76 .name = (_name), \ 77 .args = (_args), \ 78 .cmd = (_nlcmd), \ 79 .nl_msg_flags = (_flags), \ 80 .hidden = (_hidden), \ 81 .idby = (_idby), \ 82 .handler = (_handler), \ 83 .help = (_help), \ 84 .parent = _section, \ 85 .selector = (_sel), \ 86 } 87 #define __ACMD(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel, _alias)\ 88 __COMMAND(_section, _symname, _name, _args, _nlcmd, _flags, _hidden, _idby, _handler, _help, _sel);\ 89 static const struct cmd *_alias = &__cmd ## _ ## _symname ## _ ## _handler ## _ ## _nlcmd ## _ ## _idby ## _ ## _hidden 90 #define COMMAND(section, name, args, cmd, flags, idby, handler, help) \ 91 __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, NULL) 92 #define COMMAND_ALIAS(section, name, args, cmd, flags, idby, handler, help, selector, alias)\ 93 __ACMD(&(__section ## _ ## section), name, #name, args, cmd, flags, 0, idby, handler, help, selector, alias) 94 #define HIDDEN(section, name, args, cmd, flags, idby, handler) \ 95 __COMMAND(&(__section ## _ ## section), name, #name, args, cmd, flags, 1, idby, handler, NULL, NULL) 96 97 #define TOPLEVEL(_name, _args, _nlcmd, _flags, _idby, _handler, _help) \ 98 struct cmd \ 99 __section ## _ ## _name \ 100 __attribute__((used)) __attribute__((section("__cmd"))) = { \ 101 .name = (#_name), \ 102 .args = (_args), \ 103 .cmd = (_nlcmd), \ 104 .nl_msg_flags = (_flags), \ 105 .idby = (_idby), \ 106 .handler = (_handler), \ 107 .help = (_help), \ 108 } 109 #define SECTION(_name) \ 110 struct cmd __section ## _ ## _name \ 111 __attribute__((used)) __attribute__((section("__cmd"))) = { \ 112 .name = (#_name), \ 113 .hidden = 1, \ 114 } 115 116 #define DECLARE_SECTION(_name) \ 117 extern struct cmd __section ## _ ## _name; 118 119 extern const char sdrctl_version[]; 120 121 extern int iw_debug; 122 123 int handle_cmd(struct nl80211_state *state, enum id_input idby, 124 int argc, char **argv); 125 126 struct print_event_args { 127 struct timeval ts; /* internal */ 128 bool have_ts; /* must be set false */ 129 bool frame, time, reltime; 130 }; 131 132 __u32 listen_events(struct nl80211_state *state, 133 const int n_waits, const __u32 *waits); 134 int __prepare_listen_events(struct nl80211_state *state); 135 __u32 __do_listen_events(struct nl80211_state *state, 136 const int n_waits, const __u32 *waits, 137 struct print_event_args *args); 138 139 140 int mac_addr_a2n(unsigned char *mac_addr, char *arg); 141 void mac_addr_n2a(char *mac_addr, unsigned char *arg); 142 int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len, 143 unsigned char **mask); 144 unsigned char *parse_hex(char *hex, size_t *outlen); 145 146 int parse_keys(struct nl_msg *msg, char **argv, int argc); 147 148 void print_ht_mcs(const __u8 *mcs); 149 void print_ampdu_length(__u8 exponent); 150 void print_ampdu_spacing(__u8 spacing); 151 void print_ht_capability(__u16 cap); 152 void print_vht_info(__u32 capa, const __u8 *mcs); 153 154 char *channel_width_name(enum nl80211_chan_width width); 155 const char *iftype_name(enum nl80211_iftype iftype); 156 const char *command_name(enum nl80211_commands cmd); 157 int ieee80211_channel_to_frequency(int chan, enum nl80211_band band); 158 int ieee80211_frequency_to_channel(int freq); 159 160 void print_ssid_escaped(const uint8_t len, const uint8_t *data); 161 162 int nl_get_multicast_id(struct nl_sock *sock, const char *family, const char *group); 163 164 char *reg_initiator_to_string(__u8 initiator); 165 166 const char *get_reason_str(uint16_t reason); 167 const char *get_status_str(uint16_t status); 168 169 enum print_ie_type { 170 PRINT_SCAN, 171 PRINT_LINK, 172 }; 173 174 #define BIT(x) (1ULL<<(x)) 175 176 void print_ies(unsigned char *ie, int ielen, bool unknown, 177 enum print_ie_type ptype); 178 179 void parse_bitrate(struct nlattr *bitrate_attr, char *buf, int buflen); 180 void iw_hexdump(const char *prefix, const __u8 *data, size_t len); 181 182 DECLARE_SECTION(set); 183 DECLARE_SECTION(get); 184 185 #endif /* __IW_H */ 186