#include "path-util.h"
#include "socket-util.h"
#include "missing.h"
+#include "fileio.h"
int socket_address_parse(SocketAddress *a, const char *s) {
int r;
errno = 0;
if (inet_pton(AF_INET6, n, &a->sockaddr.in6.sin6_addr) <= 0) {
free(n);
- return errno != 0 ? -errno : -EINVAL;
+ return errno > 0 ? -errno : -EINVAL;
}
free(n);
errno = 0;
if (sscanf(s, "%ms %u", &sfamily, &group) < 1)
- return errno ? -errno : -EINVAL;
+ return errno > 0 ? -errno : -EINVAL;
family = netlink_family_from_string(sfamily);
if (family < 0)
}
case AF_NETLINK: {
- char _cleanup_free_ *sfamily = NULL;
+ _cleanup_free_ char *sfamily = NULL;
r = netlink_family_to_string_alloc(a->protocol, &sfamily);
if (r < 0)
return false;
if (a->sockaddr.un.sun_path[0]) {
- if (strncmp(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, sizeof(a->sockaddr.un.sun_path)) != 0)
+ if (!strneq(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, sizeof(a->sockaddr.un.sun_path)))
return false;
} else {
if (memcmp(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, a->size) != 0)
return enabled;
}
+bool socket_address_matches_fd(const SocketAddress *a, int fd) {
+ union sockaddr_union sa;
+ socklen_t salen = sizeof(sa), solen;
+ int protocol, type;
+
+ assert(a);
+ assert(fd >= 0);
+
+ if (getsockname(fd, &sa.sa, &salen) < 0)
+ return false;
+
+ if (sa.sa.sa_family != a->sockaddr.sa.sa_family)
+ return false;
+
+ solen = sizeof(type);
+ if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &type, &solen) < 0)
+ return false;
+
+ if (type != a->type)
+ return false;
+
+ if (a->protocol != 0) {
+ solen = sizeof(protocol);
+ if (getsockopt(fd, SOL_SOCKET, SO_PROTOCOL, &protocol, &solen) < 0)
+ return false;
+
+ if (protocol != a->protocol)
+ return false;
+ }
+
+ switch (sa.sa.sa_family) {
+
+ case AF_INET:
+ return sa.in4.sin_port == a->sockaddr.in4.sin_port &&
+ sa.in4.sin_addr.s_addr == a->sockaddr.in4.sin_addr.s_addr;
+
+ case AF_INET6:
+ return sa.in6.sin6_port == a->sockaddr.in6.sin6_port &&
+ memcmp(&sa.in6.sin6_addr, &a->sockaddr.in6.sin6_addr, sizeof(struct in6_addr)) == 0;
+
+ case AF_UNIX:
+ return salen == a->size &&
+ memcmp(sa.un.sun_path, a->sockaddr.un.sun_path, salen - offsetof(struct sockaddr_un, sun_path)) == 0;
+
+ }
+
+ return false;
+}
+
+int make_socket_fd(const char* address, int flags) {
+ SocketAddress a;
+ int fd, r;
+ _cleanup_free_ char *p = NULL;
+
+ r = socket_address_parse(&a, address);
+ if (r < 0) {
+ log_error("failed to parse socket: %s", strerror(-r));
+ return r;
+ }
+
+ fd = socket(socket_address_family(&a), flags, 0);
+ if (fd < 0) {
+ log_error("socket(): %m");
+ return -errno;
+ }
+
+ r = socket_address_print(&a, &p);
+ if (r < 0) {
+ log_error("socket_address_print(): %s", strerror(-r));
+ return r;
+ }
+ log_info("Listening on %s", p);
+
+ r = bind(fd, &a.sockaddr.sa, a.size);
+ if (r < 0) {
+ log_error("bind to %s: %m", address);
+ return -errno;
+ }
+
+ r = listen(fd, SOMAXCONN);
+ if (r < 0) {
+ log_error("listen on %s: %m", address);
+ return -errno;
+ }
+
+ return fd;
+}
+
static const char* const netlink_family_table[] = {
[NETLINK_ROUTE] = "route",
[NETLINK_FIREWALL] = "firewall",