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[core] normalize config addrs for != match (#2830) 

address strings need to have DNS resolved and port added
for consistency when matching other config conditionals

x-ref:
  "1.4.46 regression: $SERVER["socket"] matches when it shouldn't"
  https://redmine.lighttpd.net/issues/2830
This commit is contained in:
Glenn Strauss 2017-10-22 12:27:22 -04:00
parent 585206616d
commit 3549fc8280
1 changed files with 77 additions and 0 deletions
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77
src/network.c
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@ -69,6 +69,73 @@ static handler_t network_server_handle_fdevent(server *srv, void *context, int r
return HANDLER_GO_ON;
}
static void network_host_normalize_addr_str(buffer *host, sock_addr *addr) {
buffer_reset(host);
if (addr->plain.sa_family == AF_INET6)
buffer_append_string_len(host, CONST_STR_LEN("["));
sock_addr_inet_ntop_append_buffer(host, addr);
if (addr->plain.sa_family == AF_INET6)
buffer_append_string_len(host, CONST_STR_LEN("]"));
if (addr->plain.sa_family != AF_UNIX) {
unsigned short port = (addr->plain.sa_family == AF_INET)
? ntohs(addr->ipv4.sin_port)
: ntohs(addr->ipv6.sin6_port);
buffer_append_string_len(host, CONST_STR_LEN(":"));
buffer_append_int(host, (int)port);
}
}
static int network_host_parse_addr(server *srv, sock_addr *addr, socklen_t *addr_len, buffer *host, int use_ipv6) {
char *h;
char *colon = NULL;
const char *chost;
sa_family_t family = use_ipv6 ? AF_INET6 : AF_INET;
unsigned int port = srv->srvconf.port;
if (buffer_string_is_empty(host)) {
log_error_write(srv, __FILE__, __LINE__, "s", "value of $SERVER[\"socket\"] must not be empty");
return -1;
}
h = host->ptr;
if (h[0] == '/') {
#ifdef HAVE_SYS_UN_H
return (1 == sock_addr_from_str_hints(srv,addr,addr_len,h,AF_UNIX,0))
? 0
: -1;
#else
log_error_write(srv, __FILE__, __LINE__, "s",
"ERROR: Unix Domain sockets are not supported.");
return -1;
#endif
}
buffer_copy_buffer(srv->tmp_buf, host);
h = srv->tmp_buf->ptr;
if (h[0] == '[') {
family = AF_INET6;
if ((h = strchr(h, ']'))) {
*h++ = '\0';
if (*h == ':') colon = h;
} /*(else should not happen; validated in configparser.y)*/
h = srv->tmp_buf->ptr+1;
}
else {
colon = strrchr(h, ':');
}
if (colon) {
*colon++ = '\0';
port = strtol(colon, NULL, 10);
if (port == 0 || port > 65535) {
log_error_write(srv, __FILE__, __LINE__, "sd",
"port not set or out of range:", port);
return -1;
}
}
chost = *h ? h : family == AF_INET ? "0.0.0.0" : "::";
if (1 != sock_addr_from_str_hints(srv,addr,addr_len,chost,family,port)) {
return -1;
}
return 0;
}
static int network_server_init(server *srv, buffer *host_token, size_t sidx, int stdin_fd) {
socklen_t addr_len;
server_socket *srv_socket;
@ -495,6 +562,16 @@ int network_init(server *srv, int stdin_fd) {
/* not our stage */
if (COMP_SERVER_SOCKET != dc->comp) continue;
if (dc->cond == CONFIG_COND_NE) {
socklen_t addr_len = sizeof(sock_addr);
sock_addr addr;
if (0 != network_host_parse_addr(srv, &addr, &addr_len, dc->string, srv->config_storage[i]->use_ipv6)) {
return -1;
}
network_host_normalize_addr_str(dc->string, &addr);
continue;
}
if (dc->cond != CONFIG_COND_EQ) continue;
if (0 != network_server_init(srv, dc->string, i, -1)) return -1;