]> git.ipfire.org Git - thirdparty/iw.git/blobdiff - wowlan.c
update nl80211.h
[thirdparty/iw.git] / wowlan.c
index bdfa6a9bb2834831cc3da33c2b65b2ef33ad8ef6..778c0dbc070488ac40a6d10d81915bb7cb2f5459 100644 (file)
--- a/wowlan.c
+++ b/wowlan.c
@@ -1,6 +1,6 @@
-#include <net/if.h>
 #include <errno.h>
 #include <string.h>
+#include <stdio.h>
 
 #include <netlink/genl/genl.h>
 #include <netlink/genl/family.h>
 #include <netlink/msg.h>
 #include <netlink/attr.h>
 
+#include <arpa/inet.h>
+
 #include "nl80211.h"
 #include "iw.h"
 
 SECTION(wowlan);
 
-static int handle_wowlan_enable(struct nl80211_state *state, struct nl_cb *cb,
-                               struct nl_msg *msg, int argc, char **argv)
+static int wowlan_parse_tcp_file(struct nl_msg *msg, const char *fn)
+{
+       char buf[16768];
+       int err = 1;
+       FILE *f = fopen(fn, "r");
+       struct nlattr *tcp;
+
+       if (!f)
+               return 1;
+       tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
+       if (!tcp)
+               goto nla_put_failure;
+
+       while (!feof(f)) {
+               char *eol;
+
+               if (!fgets(buf, sizeof(buf), f))
+                       break;
+
+               eol = strchr(buf + 5, '\r');
+               if (eol)
+                       *eol = 0;
+               eol = strchr(buf + 5, '\n');
+               if (eol)
+                       *eol = 0;
+
+               if (strncmp(buf, "source=", 7) == 0) {
+                       struct in_addr in_addr;
+                       char *addr = buf + 7;
+                       char *port = strchr(buf + 7, ':');
+
+                       if (port) {
+                               *port = 0;
+                               port++;
+                       }
+                       if (inet_aton(addr, &in_addr) == 0)
+                               goto close;
+                       NLA_PUT_U32(msg, NL80211_WOWLAN_TCP_SRC_IPV4,
+                                   in_addr.s_addr);
+                       if (port)
+                               NLA_PUT_U16(msg, NL80211_WOWLAN_TCP_SRC_PORT,
+                                           atoi(port));
+               } else if (strncmp(buf, "dest=", 5) == 0) {
+                       struct in_addr in_addr;
+                       char *addr = buf + 5;
+                       char *port = strchr(buf + 5, ':');
+                       char *mac;
+                       unsigned char macbuf[6];
+
+                       if (!port)
+                               goto close;
+                       *port = 0;
+                       port++;
+                       mac = strchr(port, '@');
+                       if (!mac)
+                               goto close;
+                       *mac = 0;
+                       mac++;
+                       if (inet_aton(addr, &in_addr) == 0)
+                               goto close;
+                       NLA_PUT_U32(msg, NL80211_WOWLAN_TCP_DST_IPV4,
+                                   in_addr.s_addr);
+                       NLA_PUT_U16(msg, NL80211_WOWLAN_TCP_DST_PORT,
+                                   atoi(port));
+                       if (mac_addr_a2n(macbuf, mac))
+                               goto close;
+                       NLA_PUT(msg, NL80211_WOWLAN_TCP_DST_MAC,
+                               6, macbuf);
+               } else if (strncmp(buf, "data=", 5) == 0) {
+                       size_t len;
+                       unsigned char *pkt = parse_hex(buf + 5, &len);
+
+                       if (!pkt)
+                               goto close;
+                       NLA_PUT(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, len, pkt);
+                       free(pkt);
+               } else if (strncmp(buf, "data.interval=", 14) == 0) {
+                       NLA_PUT_U32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
+                                   atoi(buf + 14));
+               } else if (strncmp(buf, "wake=", 5) == 0) {
+                       unsigned char *pat, *mask;
+                       size_t patlen;
+
+                       if (parse_hex_mask(buf + 5, &pat, &patlen, &mask))
+                               goto close;
+                       NLA_PUT(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
+                               DIV_ROUND_UP(patlen, 8), mask);
+                       NLA_PUT(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
+                               patlen, pat);
+                       free(mask);
+                       free(pat);
+               } else if (strncmp(buf, "data.seq=", 9) == 0) {
+                       struct nl80211_wowlan_tcp_data_seq seq = {};
+                       char *len, *offs, *start;
+
+                       len = buf + 9;
+                       offs = strchr(len, ',');
+                       if (!offs)
+                               goto close;
+                       *offs = 0;
+                       offs++;
+                       start = strchr(offs, ',');
+                       if (start) {
+                               *start = 0;
+                               start++;
+                               seq.start = atoi(start);
+                       }
+                       seq.len = atoi(len);
+                       seq.offset = atoi(offs);
+
+                       NLA_PUT(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
+                               sizeof(seq), &seq);
+               } else if (strncmp(buf, "data.tok=", 9) == 0) {
+                       struct nl80211_wowlan_tcp_data_token *tok;
+                       size_t stream_len;
+                       char *len, *offs, *toks;
+                       unsigned char *stream;
+
+                       len = buf + 9;
+                       offs = strchr(len, ',');
+                       if (!offs)
+                               goto close;
+                       *offs = 0;
+                       offs++;
+                       toks = strchr(offs, ',');
+                       if (!toks)
+                               goto close;
+                       *toks = 0;
+                       toks++;
+
+                       stream = parse_hex(toks, &stream_len);
+                       if (!stream)
+                               goto close;
+                       tok = malloc(sizeof(*tok) + stream_len);
+                       if (!tok) {
+                               free(stream);
+                               err = -ENOMEM;
+                               goto close;
+                       }
+
+                       tok->len = atoi(len);
+                       tok->offset = atoi(offs);
+                       memcpy(tok->token_stream, stream, stream_len);
+
+                       if (nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
+                               sizeof(*tok) + stream_len, tok) < 0) {
+                               free(stream);
+                               free(tok);
+                               goto nla_put_failure;
+                       }
+                       free(stream);
+                       free(tok);
+               } else {
+                       if (buf[0] == '#')
+                               continue;
+                       goto close;
+               }
+       }
+
+       err = 0;
+       goto close;
+ nla_put_failure:
+       err = -ENOBUFS;
+ close:
+       fclose(f);
+       if (tcp)
+               nla_nest_end(msg, tcp);
+       return err;
+}
+
+static int wowlan_parse_net_detect(struct nl_msg *msg, int *argc, char ***argv)
+{
+       struct nlattr *nd;
+       int err = 0;
+
+       nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
+       if (!nd)
+               return -ENOBUFS;
+
+       err = parse_sched_scan(msg, argc, argv);
+
+       nla_nest_end(msg, nd);
+
+       return err;
+}
+
+static int handle_wowlan_enable(struct nl80211_state *state,
+                               struct nl_msg *msg, int argc, char **argv,
+                               enum id_input id)
 {
        struct nlattr *wowlan, *pattern;
        struct nl_msg *patterns = NULL;
@@ -25,7 +214,8 @@ static int handle_wowlan_enable(struct nl80211_state *state, struct nl_cb *cb,
        int err = -ENOBUFS;
        unsigned char *pat, *mask;
        size_t patlen;
-       int patnum = 0;
+       int patnum = 0, pkt_offset;
+       char *eptr, *value1, *value2, *sptr = NULL;
 
        wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
        if (!wowlan)
@@ -40,28 +230,73 @@ static int handle_wowlan_enable(struct nl80211_state *state, struct nl_cb *cb,
                                NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
                        else if (strcmp(argv[0], "magic-packet") == 0)
                                NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
-                       else if (strcmp(argv[0], "patterns") == 0) {
+                       else if (strcmp(argv[0], "gtk-rekey-failure") == 0)
+                               NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
+                       else if (strcmp(argv[0], "eap-identity-request") == 0)
+                               NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
+                       else if (strcmp(argv[0], "4way-handshake") == 0)
+                               NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
+                       else if (strcmp(argv[0], "rfkill-release") == 0)
+                               NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
+                       else if (strcmp(argv[0], "tcp") == 0) {
+                               argv++;
+                               argc--;
+                               if (!argc) {
+                                       err = 1;
+                                       goto nla_put_failure;
+                               }
+                               err = wowlan_parse_tcp_file(msg, argv[0]);
+                               if (err)
+                                       goto nla_put_failure;
+                       } else if (strcmp(argv[0], "patterns") == 0) {
                                parse_state = PS_PAT;
                                patterns = nlmsg_alloc();
                                if (!patterns) {
                                        err = -ENOMEM;
                                        goto nla_put_failure;
                                }
+                       } else if (strcmp(argv[0], "net-detect") == 0) {
+                               argv++;
+                               argc--;
+                               if (!argc) {
+                                       err = 1;
+                                       goto nla_put_failure;
+                               }
+                               err = wowlan_parse_net_detect(msg, &argc, &argv);
+                               if (err)
+                                       goto nla_put_failure;
+                               continue;
                        } else {
                                err = 1;
                                goto nla_put_failure;
                        }
                        break;
                case PS_PAT:
-                       if (parse_hex_mask(argv[0], &pat, &patlen, &mask)) {
+                       value1 = strtok_r(argv[0], "+", &sptr);
+                       value2 = strtok_r(NULL, "+", &sptr);
+
+                       if (!value2) {
+                               pkt_offset = 0;
+                               value2 = value1;
+                       } else {
+                               pkt_offset = strtoul(value1, &eptr, 10);
+                               if (eptr != value1 + strlen(value1)) {
+                                       err = 1;
+                                       goto nla_put_failure;
+                               }
+                       }
+
+                       if (parse_hex_mask(value2, &pat, &patlen, &mask)) {
                                err = 1;
                                goto nla_put_failure;
                        }
+
                        pattern = nla_nest_start(patterns, ++patnum);
-                       NLA_PUT(patterns, NL80211_WOWLAN_PKTPAT_MASK,
+                       NLA_PUT(patterns, NL80211_PKTPAT_MASK,
                                DIV_ROUND_UP(patlen, 8), mask);
-                       NLA_PUT(patterns, NL80211_WOWLAN_PKTPAT_PATTERN,
-                               patlen, pat);
+                       NLA_PUT(patterns, NL80211_PKTPAT_PATTERN, patlen, pat);
+                       NLA_PUT_U32(patterns, NL80211_PKTPAT_OFFSET,
+                                   pkt_offset);
                        nla_nest_end(patterns, pattern);
                        free(mask);
                        free(pat);
@@ -81,16 +316,31 @@ static int handle_wowlan_enable(struct nl80211_state *state, struct nl_cb *cb,
        nlmsg_free(patterns);
        return err;
 }
-COMMAND(wowlan, enable, "[any] [disconnect] [magic-packet] [patterns <pattern>*]",
+COMMAND(wowlan, enable, "[any] [disconnect] [magic-packet] [gtk-rekey-failure] [eap-identity-request]"
+       " [4way-handshake] [rfkill-release] [net-detect " SCHED_SCAN_OPTIONS "]"
+       " [tcp <config-file>] [patterns [offset1+]<pattern1> ...]",
        NL80211_CMD_SET_WOWLAN, 0, CIB_PHY, handle_wowlan_enable,
        "Enable WoWLAN with the given triggers.\n"
        "Each pattern is given as a bytestring with '-' in places where any byte\n"
        "may be present, e.g. 00:11:22:-:44 will match 00:11:22:33:44 and\n"
-       "00:11:22:33:ff:44 etc.");
+       "00:11:22:33:ff:44 etc.\n"
+       "Offset and pattern should be separated by '+', e.g. 18+43:34:00:12 will match "
+       "'43:34:00:12' after 18 bytes of offset in Rx packet.\n\n"
+       "The TCP configuration file contains:\n"
+       "  source=ip[:port]\n"
+       "  dest=ip:port@mac\n"
+       "  data=<hex data packet>\n"
+       "  data.interval=seconds\n"
+       "  [wake=<hex packet with masked out bytes indicated by '-'>]\n"
+       "  [data.seq=len,offset[,start]]\n"
+       "  [data.tok=len,offset,<token stream>]\n\n"
+       "Net-detect configuration example:\n"
+       " iw phy0 wowlan enable net-detect interval 5000 delay 30 freqs 2412 2422 matches ssid foo ssid bar");
 
 
-static int handle_wowlan_disable(struct nl80211_state *state, struct nl_cb *cb,
-                                struct nl_msg *msg, int argc, char **argv)
+static int handle_wowlan_disable(struct nl80211_state *state,
+                                struct nl_msg *msg, int argc, char **argv,
+                                enum id_input id)
 {
        /* just a set w/o wowlan attribute */
        return 0;
@@ -128,30 +378,83 @@ static int print_wowlan_handler(struct nl_msg *msg, void *arg)
                printf(" * wake up on disconnect\n");
        if (trig[NL80211_WOWLAN_TRIG_MAGIC_PKT])
                printf(" * wake up on magic packet\n");
+       if (trig[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
+               printf(" * wake up on GTK rekeying failure\n");
+       if (trig[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
+               printf(" * wake up on EAP identity request\n");
+       if (trig[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
+               printf(" * wake up on 4-way handshake\n");
+       if (trig[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
+               printf(" * wake up on RF-kill release\n");
+       if (trig[NL80211_WOWLAN_TRIG_NET_DETECT]) {
+               struct nlattr *match, *freq,
+                       *nd[NUM_NL80211_ATTR], *tb[NUM_NL80211_ATTR];
+               int rem_match;
+
+               printf(" * wake up on network detection\n");
+               nla_parse_nested(nd, NL80211_ATTR_MAX,
+                                trig[NL80211_WOWLAN_TRIG_NET_DETECT], NULL);
+
+               if (nd[NL80211_ATTR_SCHED_SCAN_INTERVAL])
+                       printf("\tscan interval: %u msecs\n",
+                              nla_get_u32(nd[NL80211_ATTR_SCHED_SCAN_INTERVAL]));
+
+               if (nd[NL80211_ATTR_SCHED_SCAN_DELAY])
+                       printf("\tinitial scan delay: %u secs\n",
+                              nla_get_u32(nd[NL80211_ATTR_SCHED_SCAN_DELAY]));
+
+               if (nd[NL80211_ATTR_SCHED_SCAN_MATCH]) {
+                       printf("\tmatches:\n");
+                       nla_for_each_nested(match,
+                                           nd[NL80211_ATTR_SCHED_SCAN_MATCH],
+                                           rem_match) {
+                               nla_parse_nested(tb, NL80211_ATTR_MAX, match,
+                                                NULL);
+                               printf("\t\tSSID: ");
+                               print_ssid_escaped(
+                                       nla_len(tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]),
+                                       nla_data(tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]));
+                               printf("\n");
+                       }
+               }
+               if (nd[NL80211_ATTR_SCAN_FREQUENCIES]) {
+                       printf("\tfrequencies:");
+                       nla_for_each_nested(freq,
+                                           nd[NL80211_ATTR_SCAN_FREQUENCIES],
+                                           rem_match) {
+                               printf(" %d", nla_get_u32(freq));
+                       }
+                       printf("\n");
+               }
+       }
        if (trig[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
                nla_for_each_nested(pattern,
                                    trig[NL80211_WOWLAN_TRIG_PKT_PATTERN],
                                    rem_pattern) {
-                       struct nlattr *patattr[NUM_NL80211_WOWLAN_PKTPAT];
+                       struct nlattr *patattr[NUM_NL80211_PKTPAT];
                        int i, patlen, masklen;
                        uint8_t *mask, *pat;
-                       nla_parse(patattr, MAX_NL80211_WOWLAN_PKTPAT,
-                                 nla_data(pattern), nla_len(pattern),
-                                 NULL);
-                       if (!patattr[NL80211_WOWLAN_PKTPAT_MASK] ||
-                           !patattr[NL80211_WOWLAN_PKTPAT_PATTERN]) {
+                       nla_parse(patattr, MAX_NL80211_PKTPAT,
+                                 nla_data(pattern), nla_len(pattern), NULL);
+                       if (!patattr[NL80211_PKTPAT_MASK] ||
+                           !patattr[NL80211_PKTPAT_PATTERN]) {
                                printf(" * (invalid pattern specification)\n");
                                continue;
                        }
-                       masklen = nla_len(patattr[NL80211_WOWLAN_PKTPAT_MASK]);
-                       patlen = nla_len(patattr[NL80211_WOWLAN_PKTPAT_PATTERN]);
+                       masklen = nla_len(patattr[NL80211_PKTPAT_MASK]);
+                       patlen = nla_len(patattr[NL80211_PKTPAT_PATTERN]);
                        if (DIV_ROUND_UP(patlen, 8) != masklen) {
                                printf(" * (invalid pattern specification)\n");
                                continue;
                        }
-                       printf(" * wake up on pattern: ");
-                       pat = nla_data(patattr[NL80211_WOWLAN_PKTPAT_PATTERN]);
-                       mask = nla_data(patattr[NL80211_WOWLAN_PKTPAT_MASK]);
+                       if (patattr[NL80211_PKTPAT_OFFSET]) {
+                               int pkt_offset =
+                                       nla_get_u32(patattr[NL80211_PKTPAT_OFFSET]);
+                               printf(" * wake up on packet offset: %d", pkt_offset);
+                       }
+                       printf(" pattern: ");
+                       pat = nla_data(patattr[NL80211_PKTPAT_PATTERN]);
+                       mask = nla_data(patattr[NL80211_PKTPAT_MASK]);
                        for (i = 0; i < patlen; i++) {
                                if (mask[i / 8] & (1 << (i % 8)))
                                        printf("%.2x", pat[i]);
@@ -163,15 +466,17 @@ static int print_wowlan_handler(struct nl_msg *msg, void *arg)
                        printf("\n");
                }
        }
+       if (trig[NL80211_WOWLAN_TRIG_TCP_CONNECTION])
+               printf(" * wake up on TCP connection\n");
 
        return NL_SKIP;
 }
 
-static int handle_wowlan_show(struct nl80211_state *state, struct nl_cb *cb,
-                             struct nl_msg *msg, int argc, char **argv)
+static int handle_wowlan_show(struct nl80211_state *state,
+                             struct nl_msg *msg, int argc, char **argv,
+                             enum id_input id)
 {
-       nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
-                 print_wowlan_handler, NULL);
+       register_handler(print_wowlan_handler, NULL);
 
        return 0;
 }