unsigned char *parse_hex(char *hex, size_t *outlen)
{
unsigned char *result;
if (parse_hex_mask(hex, &result, outlen, NULL))
return NULL;
return result;
}
static int handle_wowlan_enable(struct nl80211_state *state, struct nl_cb *cb,
struct nl_msg *msg, int argc, char **argv,
enum id_input id)
{
struct nlattr *wowlan, *pattern;
struct nl_msg *patterns = NULL;
enum {
PS_REG,
PS_PAT,
} parse_state = PS_REG;
int err = -ENOBUFS;
unsigned char *pat, *mask;
size_t patlen;
int patnum = 0;
wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
if (!wowlan)
return -ENOBUFS;
while (argc) {
switch (parse_state) {
case PS_REG:
if (strcmp(argv[0], "any") == 0)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
else if (strcmp(argv[0], "disconnect") == 0)
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], "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], "patterns") == 0) {
parse_state = PS_PAT;
patterns = nlmsg_alloc();
if (!patterns) {
err = -ENOMEM;
goto nla_put_failure;
}
} else {
err = 1;
goto nla_put_failure;
}
break;
case PS_PAT:
if (parse_hex_mask(argv[0], &pat, &patlen, &mask)) {
err = 1;
goto nla_put_failure;
}
pattern = nla_nest_start(patterns, ++patnum);
NLA_PUT(patterns, NL80211_WOWLAN_PKTPAT_MASK,
DIV_ROUND_UP(patlen, 8), mask);
NLA_PUT(patterns, NL80211_WOWLAN_PKTPAT_PATTERN,
patlen, pat);
nla_nest_end(patterns, pattern);
free(mask);
free(pat);
break;
}
argv++;
argc--;
}
if (patterns)
nla_put_nested(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
patterns);
nla_nest_end(msg, wowlan);
err = 0;
nla_put_failure:
nlmsg_free(patterns);
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;
enum {
PS_REG,
PS_PAT,
} parse_state = PS_REG;
int err = -ENOBUFS;
unsigned char *pat, *mask;
size_t patlen;
int patnum = 0, pkt_offset;
char *eptr, *value1, *value2, *sptr = NULL;
wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
if (!wowlan)
return -ENOBUFS;
while (argc) {
switch (parse_state) {
case PS_REG:
if (strcmp(argv[0], "any") == 0)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
else if (strcmp(argv[0], "disconnect") == 0)
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], "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:
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_PKTPAT_MASK,
DIV_ROUND_UP(patlen, 8), mask);
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);
break;
}
argv++;
argc--;
}
if (patterns)
nla_put_nested(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
patterns);
nla_nest_end(msg, wowlan);
err = 0;
nla_put_failure:
nlmsg_free(patterns);
return err;
}
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);
NLA_PUT(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
sizeof(*tok) + stream_len, tok);
free(stream);
free(tok);
} else {
if (buf[0] == '#')
continue;
goto close;
}
}
err = 0;
goto close;
nla_put_failure:
err = -ENOBUFS;
close:
fclose(f);
nla_nest_end(msg, tcp);
return err;
}
static int handle_coalesce_enable(struct nl80211_state *state,
struct nl_msg *msg, int argc, char **argv,
enum id_input id)
{
struct nlattr *nl_rules, *nl_rule = NULL, *nl_pats, *nl_pat;
unsigned char *pat, *mask;
size_t patlen;
int patnum = 0, pkt_offset, err = 1;
char *eptr, *value1, *value2, *sptr = NULL, *end, buf[16768];
enum nl80211_coalesce_condition condition;
FILE *f = fopen(argv[0], "r");
enum {
PS_DELAY,
PS_CONDITION,
PS_PATTERNS
} parse_state = PS_DELAY;
int rule_num = 0;
if (!f)
return 1;
nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
if (!nl_rules) {
fclose(f);
return -ENOBUFS;
}
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;
switch (parse_state) {
case PS_DELAY:
if (strncmp(buf, "delay=", 6) == 0) {
char *delay = buf + 6;
rule_num++;
nl_rule = nla_nest_start(msg, rule_num);
if (!nl_rule)
goto close;
NLA_PUT_U32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
strtoul(delay, &end, 10));
if (*end != '\0')
goto close;
parse_state = PS_CONDITION;
} else {
goto close;
}
break;
case PS_CONDITION:
if (strncmp(buf, "condition=", 10) == 0) {
char *cond = buf + 10;
condition = strtoul(cond, &end, 10);
if (*end != '\0')
goto close;
NLA_PUT_U32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
condition);
parse_state = PS_PATTERNS;
} else {
goto close;
}
break;
case PS_PATTERNS:
if (strncmp(buf, "patterns=", 9) == 0) {
char *cur_pat = buf + 9;
char *next_pat = strchr(buf + 9, ',');
if (next_pat) {
*next_pat = 0;
next_pat++;
}
nl_pats = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
while (1) {
value1 = strtok_r(cur_pat, "+", &sptr);
value2 = strtok_r(NULL, "+", &sptr);
if (!value2) {
pkt_offset = 0;
if (!value1)
goto close;
value2 = value1;
} else {
pkt_offset = strtoul(value1, &eptr, 10);
if (eptr != value1 + strlen(value1))
goto close;
}
if (parse_hex_mask(value2, &pat, &patlen, &mask))
goto close;
nl_pat = nla_nest_start(msg, ++patnum);
NLA_PUT(msg, NL80211_PKTPAT_MASK,
DIV_ROUND_UP(patlen, 8), mask);
NLA_PUT(msg, NL80211_PKTPAT_PATTERN, patlen, pat);
NLA_PUT_U32(msg, NL80211_PKTPAT_OFFSET,
pkt_offset);
nla_nest_end(msg, nl_pat);
free(mask);
free(pat);
if (!next_pat)
break;
cur_pat = next_pat;
next_pat = strchr(cur_pat, ',');
if (next_pat) {
*next_pat = 0;
next_pat++;
}
}
nla_nest_end(msg, nl_pats);
nla_nest_end(msg, nl_rule);
parse_state = PS_DELAY;
} else {
goto close;
}
break;
default:
if (buf[0] == '#')
continue;
goto close;
}
}
if (parse_state == PS_DELAY)
err = 0;
else
err = 1;
goto close;
nla_put_failure:
err = -ENOBUFS;
close:
fclose(f);
nla_nest_end(msg, nl_rules);
return err;
}