]> git.ipfire.org Git - thirdparty/iw.git/blobdiff - info.c
iw: support split wiphy dump
[thirdparty/iw.git] / info.c
diff --git a/info.c b/info.c
index 5dab1e8897bb000e668f8a1d1d1e30d5d6394f5d..3d4eaebe590fb3426c1491a64f47e29c4d865aee 100644 (file)
--- a/info.c
+++ b/info.c
@@ -49,6 +49,20 @@ static char *cipher_name(__u32 c)
        }
 }
 
+static char *dfs_state_name(enum nl80211_dfs_state state)
+{
+       switch (state) {
+       case NL80211_DFS_USABLE:
+               return "usable";
+       case NL80211_DFS_AVAILABLE:
+               return "available";
+       case NL80211_DFS_UNAVAILABLE:
+               return "unavailable";
+       default:
+               return "unknown";
+       }
+}
+
 static int print_phy_handler(struct nl_msg *msg, void *arg)
 {
        struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
@@ -78,90 +92,127 @@ static int print_phy_handler(struct nl_msg *msg, void *arg)
        struct nlattr *nl_mode;
        struct nlattr *nl_cmd;
        struct nlattr *nl_if, *nl_ftype;
-       int bandidx = 1;
        int rem_band, rem_freq, rem_rate, rem_mode, rem_cmd, rem_ftype, rem_if;
        int open;
+       /*
+        * static variables only work here, other applications need to use the
+        * callback pointer and store them there so they can be multithreaded
+        * and/or have multiple netlink sockets, etc.
+        */
+       static int64_t phy_id = -1;
+       static int last_band = -1;
+       static bool band_had_freq = false;
+       bool print_name = true;
 
        nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
                  genlmsg_attrlen(gnlh, 0), NULL);
 
-       if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
-               return NL_SKIP;
-
-       if (tb_msg[NL80211_ATTR_WIPHY_NAME])
+       if (tb_msg[NL80211_ATTR_WIPHY]) {
+               if (nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]) == phy_id)
+                       print_name = false;
+               else
+                       last_band = -1;
+               phy_id = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]);
+       }
+       if (print_name && tb_msg[NL80211_ATTR_WIPHY_NAME])
                printf("Wiphy %s\n", nla_get_string(tb_msg[NL80211_ATTR_WIPHY_NAME]));
 
-       nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
-               printf("\tBand %d:\n", bandidx);
-               bandidx++;
+       /* needed for split dump */
+       if (tb_msg[NL80211_ATTR_WIPHY_BANDS]) {
+               nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
+                       if (last_band != nl_band->nla_type) {
+                               printf("\tBand %d:\n", nl_band->nla_type + 1);
+                               band_had_freq = false;
+                       }
+                       last_band = nl_band->nla_type;
 
-               nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
-                         nla_len(nl_band), NULL);
+                       nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
+                                 nla_len(nl_band), NULL);
 
-#ifdef NL80211_BAND_ATTR_HT_CAPA
-               if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
-                       __u16 cap = nla_get_u16(tb_band[NL80211_BAND_ATTR_HT_CAPA]);
-                       print_ht_capability(cap);
-               }
-               if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
-                       __u8 exponent = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]);
-                       print_ampdu_length(exponent);
-               }
-               if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
-                       __u8 spacing = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]);
-                       print_ampdu_spacing(spacing);
-               }
-               if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
-                   nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]) == 16)
-                       print_ht_mcs(nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]));
-#endif
-
-               printf("\t\tFrequencies:\n");
-
-               nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
-                       uint32_t freq;
-                       nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
-                                 nla_len(nl_freq), freq_policy);
-                       if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
-                               continue;
-                       freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
-                       printf("\t\t\t* %d MHz [%d]", freq, ieee80211_frequency_to_channel(freq));
-
-                       if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
-                           !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
-                               printf(" (%.1f dBm)", 0.01 * nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]));
-
-                       open = 0;
-                       if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) {
-                               print_flag("disabled", &open);
-                               goto next;
+                       if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
+                               __u16 cap = nla_get_u16(tb_band[NL80211_BAND_ATTR_HT_CAPA]);
+                               print_ht_capability(cap);
+                       }
+                       if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
+                               __u8 exponent = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]);
+                               print_ampdu_length(exponent);
+                       }
+                       if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
+                               __u8 spacing = nla_get_u8(tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]);
+                               print_ampdu_spacing(spacing);
+                       }
+                       if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
+                           nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]) == 16)
+                               print_ht_mcs(nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]));
+                       if (tb_band[NL80211_BAND_ATTR_VHT_CAPA] &&
+                           tb_band[NL80211_BAND_ATTR_VHT_MCS_SET])
+                               print_vht_info(nla_get_u32(tb_band[NL80211_BAND_ATTR_VHT_CAPA]),
+                                              nla_data(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]));
+
+                       if (tb_band[NL80211_BAND_ATTR_FREQS]) {
+                               if (!band_had_freq) {
+                                       printf("\t\tFrequencies:\n");
+                                       band_had_freq = true;
+                               }
+                               nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
+                                       uint32_t freq;
+                                       nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
+                                                 nla_len(nl_freq), freq_policy);
+                                       if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+                                               continue;
+                                       freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
+                                       printf("\t\t\t* %d MHz [%d]", freq, ieee80211_frequency_to_channel(freq));
+
+                                       if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
+                                           !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
+                                               printf(" (%.1f dBm)", 0.01 * nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]));
+
+                                       open = 0;
+                                       if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) {
+                                               print_flag("disabled", &open);
+                                               goto next;
+                                       }
+                                       if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
+                                               print_flag("passive scanning", &open);
+                                       if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
+                                               print_flag("no IBSS", &open);
+                                       if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
+                                               print_flag("radar detection", &open);
+next:
+                                       if (open)
+                                               printf(")");
+                                       printf("\n");
+
+                               if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
+                                       enum nl80211_dfs_state state = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
+                                       unsigned long time;
+
+                                       printf("\t\t\t  DFS state: %s", dfs_state_name(state));
+                                       if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_TIME]) {
+                                               time = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_TIME]);
+                                               printf(" (for %lu sec)", time/1000);
+                                       }
+                                       printf("\n");
+                               }
+                               }
                        }
-                       if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
-                               print_flag("passive scanning", &open);
-                       if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
-                               print_flag("no IBSS", &open);
-                       if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
-                               print_flag("radar detection", &open);
- next:
-                       if (open)
-                               printf(")");
-                       printf("\n");
-               }
 
-               printf("\t\tBitrates (non-HT):\n");
-
-               nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
-                       nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
-                                 nla_len(nl_rate), rate_policy);
-                       if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
-                               continue;
-                       printf("\t\t\t* %2.1f Mbps", 0.1 * nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]));
-                       open = 0;
-                       if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
-                               print_flag("short preamble supported", &open);
-                       if (open)
-                               printf(")");
-                       printf("\n");
+                       if (tb_band[NL80211_BAND_ATTR_RATES]) {
+                       printf("\t\tBitrates (non-HT):\n");
+                       nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
+                               nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
+                                         nla_len(nl_rate), rate_policy);
+                               if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
+                                       continue;
+                               printf("\t\t\t* %2.1f Mbps", 0.1 * nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]));
+                               open = 0;
+                               if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
+                                       print_flag("short preamble supported", &open);
+                               if (open)
+                                       printf(")");
+                               printf("\n");
+                       }
+                       }
                }
        }
 
@@ -243,6 +294,7 @@ static int print_phy_handler(struct nl_msg *msg, void *arg)
                                [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
                                [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
                                [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
+                               [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
                        };
                        struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
                        static struct nla_policy iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
@@ -294,11 +346,30 @@ static int print_phy_handler(struct nl_msg *msg, void *arg)
                        }
                        printf(",\n\t\t   ");
 
-                       printf("total <= %d, #channels <= %d%s\n",
+                       printf("total <= %d, #channels <= %d%s",
                                nla_get_u32(tb_comb[NL80211_IFACE_COMB_MAXNUM]),
                                nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]),
                                tb_comb[NL80211_IFACE_COMB_STA_AP_BI_MATCH] ?
                                        ", STA/AP BI must match" : "");
+                       if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) {
+                               unsigned long widths = nla_get_u32(tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]);
+
+                               if (widths) {
+                                       int width;
+                                       bool first = true;
+
+                                       printf(", radar detect widths: {");
+                                       for (width = 0; width < 32; width++)
+                                               if (widths & (1 << width)) {
+                                                       printf("%s %s",
+                                                              first ? "":",",
+                                                              channel_width_name(width));
+                                                       first = false;
+                                               }
+                                       printf(" }\n");
+                               }
+                       }
+                       printf("\n");
 broken_combination:
                        ;
                }
@@ -352,14 +423,13 @@ broken_combination:
                        [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
                        [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
                        [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
-                       [NL80211_WOWLAN_TRIG_PKT_PATTERN] = {
-                               .minlen = sizeof(struct nl80211_wowlan_pattern_support),
-                       },
+                       [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .minlen = 12 },
                        [NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED] = { .type = NLA_FLAG },
                        [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
                        [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
                        [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
                        [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
+                       [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
                };
                struct nl80211_wowlan_pattern_support *pat;
                int err;
@@ -380,8 +450,11 @@ broken_combination:
                                printf("\t\t * wake up on magic packet\n");
                        if (tb_wowlan[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
                                pat = nla_data(tb_wowlan[NL80211_WOWLAN_TRIG_PKT_PATTERN]);
-                               printf("\t\t * wake up on pattern match, up to %u patterns of %u-%u bytes\n",
-                                       pat->max_patterns, pat->min_pattern_len, pat->max_pattern_len);
+                               printf("\t\t * wake up on pattern match, up to %u patterns of %u-%u bytes,\n"
+                                       "\t\t   maximum packet offset %u bytes\n",
+                                       pat->max_patterns, pat->min_pattern_len, pat->max_pattern_len,
+                                       (nla_len(tb_wowlan[NL80211_WOWLAN_TRIG_PKT_PATTERN]) <
+                                       sizeof(*pat)) ? 0 : pat->max_pkt_offset);
                        }
                        if (tb_wowlan[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
                                printf("\t\t * can do GTK rekeying\n");
@@ -393,6 +466,8 @@ broken_combination:
                                printf("\t\t * wake up on 4-way handshake\n");
                        if (tb_wowlan[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
                                printf("\t\t * wake up on rfkill release\n");
+                       if (tb_wowlan[NL80211_WOWLAN_TRIG_TCP_CONNECTION])
+                               printf("\t\t * wake up on TCP connection\n");
                }
        }
 
@@ -462,11 +537,56 @@ static int handle_info(struct nl80211_state *state,
                       enum id_input id)
 {
        nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_phy_handler, NULL);
+       /* kernels not supporting it will ignore this */
+       nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
 
        return 0;
 }
-__COMMAND(NULL, info, "info", NULL, NL80211_CMD_GET_WIPHY, 0, 0, CIB_PHY, handle_info,
+__COMMAND(NULL, info, "info", NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, 0, CIB_PHY, handle_info,
         "Show capabilities for the specified wireless device.", NULL);
 TOPLEVEL(list, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info,
         "List all wireless devices and their capabilities.");
 TOPLEVEL(phy, NULL, NL80211_CMD_GET_WIPHY, NLM_F_DUMP, CIB_NONE, handle_info, NULL);
+
+static int handle_commands(struct nl80211_state *state,
+                          struct nl_cb *cb, struct nl_msg *msg,
+                          int argc, char **argv, enum id_input id)
+{
+       int i;
+       for (i = 1; i < NL80211_CMD_MAX; i++)
+               printf("%d (0x%x): %s\n", i, i, command_name(i));
+       /* don't send netlink messages */
+       return 2;
+}
+TOPLEVEL(commands, NULL, NL80211_CMD_GET_WIPHY, 0, CIB_NONE, handle_commands,
+        "list all known commands and their decimal & hex value");
+
+static int print_feature_handler(struct nl_msg *msg, void *arg)
+{
+       struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
+       struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+
+       nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+                 genlmsg_attrlen(gnlh, 0), NULL);
+
+       if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) {
+               uint32_t feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
+
+               printf("nl80211 features: 0x%x\n", feat);
+               if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
+                       printf("\t* split wiphy dump\n");
+       }
+
+       return NL_SKIP;
+}
+
+static int handle_features(struct nl80211_state *state,
+                          struct nl_cb *cb, struct nl_msg *msg,
+                          int argc, char **argv, enum id_input id)
+{
+       nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_feature_handler, NULL);
+       return 0;
+}
+
+TOPLEVEL(features, NULL, NL80211_CMD_GET_PROTOCOL_FEATURES, 0, CIB_NONE,
+        handle_features, "");