Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#ifdef _SAMBA_BUILD
+#ifdef _SAMBA_BUILD_
#include "includes.h"
+#undef SOCKET_WRAPPER
#include "system/network.h"
+#include "system/filesys.h"
#else
#include <sys/types.h>
+#include <sys/stat.h>
#include <sys/socket.h>
#include <errno.h>
#include <sys/un.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
-#include "dlinklist.h"
#endif
+#include "dlinklist.h"
/* LD_PRELOAD doesn't work yet, so REWRITE_CALLS is all we support
* for now */
#define real_close close
#endif
+/* we need to use a very terse format here as IRIX 6.4 silently
+ truncates names to 16 chars, so if we use a longer name then we
+ can't tell which port a packet came from with recvfrom()
+
+ with this format we have 8 chars left for the directory name
+*/
+#define SOCKET_FORMAT "%u_%u"
+
static struct sockaddr *sockaddr_dup(const void *data, socklen_t len)
{
struct sockaddr *ret = (struct sockaddr *)malloc(len);
}
in->sin_family = AF_INET;
- in->sin_port = 1025; /* Default to 1025 */
- p = strchr(un->sun_path, '/');
+ in->sin_port = htons(1025); /* Default to 1025 */
+ p = strrchr(un->sun_path, '/');
if (p) p++; else p = un->sun_path;
- if (sscanf(p, "sock_ip_%d_%u", &type, &prt) == 2) {
+ if (sscanf(p, SOCKET_FORMAT, &type, &prt) == 2) {
in->sin_port = htons(prt);
}
in->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
return 0;
}
-static int convert_in_un(int type, const struct sockaddr_in *in, struct sockaddr_un *un)
+static int convert_in_un(struct socket_info *si, const struct sockaddr_in *in, struct sockaddr_un *un)
{
+ int type = si->type;
uint16_t prt = ntohs(in->sin_port);
- snprintf(un->sun_path, sizeof(un->sun_path), "%s/sock_ip_%d_%u",
+ if (prt == 0) {
+ struct stat st;
+ /* handle auto-allocation of ephemeral ports */
+ prt = 5000;
+ do {
+ snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT,
+ getenv("SOCKET_WRAPPER_DIR"), type, ++prt);
+ } while (stat(un->sun_path, &st) == 0 && prt < 10000);
+ ((struct sockaddr_in *)si->myname)->sin_port = htons(prt);
+ }
+ snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT,
getenv("SOCKET_WRAPPER_DIR"), type, prt);
return 0;
}
return NULL;
}
-static int sockaddr_convert_to_un(const struct socket_info *si, const struct sockaddr *in_addr, socklen_t in_len,
+static int sockaddr_convert_to_un(struct socket_info *si, const struct sockaddr *in_addr, socklen_t in_len,
struct sockaddr_un *out_addr)
{
if (!out_addr)
switch (in_addr->sa_family) {
case AF_INET:
- return convert_in_un(si->type, (const struct sockaddr_in *)in_addr, out_addr);
+ return convert_in_un(si, (const struct sockaddr_in *)in_addr, out_addr);
case AF_UNIX:
memcpy(out_addr, in_addr, sizeof(*out_addr));
return 0;
return real_accept(s, addr, addrlen);
}
+ memset(&un_addr, 0, sizeof(un_addr));
+
ret = real_accept(s, (struct sockaddr *)&un_addr, &un_addrlen);
if (ret == -1) return ret;
memset(child_si, 0, sizeof(*child_si));
child_si->fd = fd;
+ child_si->bound = 1;
- if (addr && addrlen) {
- child_si->myname_len = *addrlen;
- child_si->myname = sockaddr_dup(addr, *addrlen);
- }
+ child_si->myname_len = parent_si->myname_len;
+ child_si->myname = sockaddr_dup(parent_si->myname, parent_si->myname_len);
+
+ child_si->peername_len = *addrlen;
+ child_si->peername = sockaddr_dup(addr, *addrlen);
+
+ DLIST_ADD(sockets, child_si);
return fd;
}
+/* using sendto() or connect() on an unbound socket would give the
+ recipient no way to reply, as unlike UDP and TCP, a unix domain
+ socket can't auto-assign emphemeral port numbers, so we need to
+ assign it here */
+static int swrap_auto_bind(struct socket_info *si)
+{
+ struct sockaddr_un un_addr;
+ struct sockaddr_in in;
+ int i;
+
+ un_addr.sun_family = AF_UNIX;
+
+ for (i=0;i<1000;i++) {
+ snprintf(un_addr.sun_path, sizeof(un_addr.sun_path),
+ "%s/"SOCKET_FORMAT, getenv("SOCKET_WRAPPER_DIR"),
+ SOCK_DGRAM, i + 10000);
+ if (bind(si->fd, (struct sockaddr *)&un_addr,
+ sizeof(un_addr)) == 0) {
+ si->tmp_path = strdup(un_addr.sun_path);
+ si->bound = 1;
+ break;
+ }
+ }
+ if (i == 1000) {
+ return -1;
+ }
+
+ memset(&in, 0, sizeof(in));
+ in.sin_family = AF_INET;
+ in.sin_port = htons(i);
+ in.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ si->myname_len = sizeof(in);
+ si->myname = sockaddr_dup(&in, si->myname_len);
+ si->bound = 1;
+ return 0;
+}
+
+
int swrap_connect(int s, const struct sockaddr *serv_addr, socklen_t addrlen)
{
int ret;
}
/* only allow pseudo loopback connections */
- if (((const struct sockaddr_in *)serv_addr)->sin_addr.s_addr !=
+ if (serv_addr->sa_family == AF_INET &&
+ ((const struct sockaddr_in *)serv_addr)->sin_addr.s_addr !=
htonl(INADDR_LOOPBACK)) {
errno = ENETUNREACH;
return -1;
}
+ if (si->bound == 0 && si->domain != AF_UNIX) {
+ ret = swrap_auto_bind(si);
+ if (ret == -1) return -1;
+ }
+
ret = sockaddr_convert_to_un(si, (const struct sockaddr *)serv_addr, addrlen, &un_addr);
if (ret == -1) return -1;
return real_bind(s, myaddr, addrlen);
}
+ si->myname_len = addrlen;
+ si->myname = sockaddr_dup(myaddr, addrlen);
+
+ if (myaddr->sa_family == AF_INET &&
+ ((const struct sockaddr_in *)myaddr)->sin_addr.s_addr == 0) {
+ ((struct sockaddr_in *)si->myname)->sin_addr.s_addr =
+ htonl(INADDR_LOOPBACK);
+ }
ret = sockaddr_convert_to_un(si, (const struct sockaddr *)myaddr, addrlen, &un_addr);
if (ret == -1) return -1;
sizeof(struct sockaddr_un));
if (ret == 0) {
- si->myname_len = addrlen;
- si->myname = sockaddr_dup(myaddr, addrlen);
si->bound = 1;
}
struct socket_info *si = find_socket_info(s);
if (!si) {
- return real_getpeername(s, name, addrlen);
+ return real_getsockname(s, name, addrlen);
}
memcpy(name, si->myname, si->myname_len);
return real_recvfrom(s, buf, len, flags, from, fromlen);
}
+ /* irix 6.4 forgets to null terminate the sun_path string :-( */
+ memset(&un_addr, 0, sizeof(un_addr));
ret = real_recvfrom(s, buf, len, flags, (struct sockaddr *)&un_addr, &un_addrlen);
if (ret == -1)
return ret;
return ret;
}
+
ssize_t swrap_sendto(int s, const void *buf, size_t len, int flags, const struct sockaddr *to, socklen_t tolen)
{
struct sockaddr_un un_addr;
return real_sendto(s, buf, len, flags, to, tolen);
}
- /* using sendto() on an unbound DGRAM socket would give the
- recipient no way to reply, as unlike UDP, a unix domain socket
- can't auto-assign emphemeral port numbers, so we need to assign
- it here */
- if (si->bound == 0 && si->type == SOCK_DGRAM) {
- int i;
-
- un_addr.sun_family = AF_UNIX;
-
- for (i=0;i<1000;i++) {
- snprintf(un_addr.sun_path, sizeof(un_addr.sun_path),
- "%s/sock_ip_%u_%u", getenv("SOCKET_WRAPPER_DIR"),
- SOCK_DGRAM, i + 10000);
- if (bind(si->fd, (struct sockaddr *)&un_addr,
- sizeof(un_addr)) == 0) {
- si->tmp_path = strdup(un_addr.sun_path);
- si->bound = 1;
- break;
- }
- }
- if (i == 1000) {
- return -1;
- }
+ if (si->bound == 0 && si->domain != AF_UNIX) {
+ ret = swrap_auto_bind(si);
+ if (ret == -1) return -1;
}
-
ret = sockaddr_convert_to_un(si, to, tolen, &un_addr);
if (ret == -1) return -1;
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff