/*
* Copyright (C) Jelmer Vernooij 2005,2008 <jelmer@samba.org>
- * Copyright (C) Stefan Metzmacher 2006 <metze@samba.org>
+ * Copyright (C) Stefan Metzmacher 2006-2009 <metze@samba.org>
*
* All rights reserved.
*
#define real_ioctl ioctl
#define real_recv recv
#define real_send send
+#define real_readv readv
+#define real_writev writev
#define real_socket socket
#define real_close close
#endif
/*
* FD00::5357:5FXX
*/
-static const struct in6_addr swrap_ipv6 =
-{ { {
-0xFD,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
-0x00,0x00,0x00,0x00,0x53,0x57,0x5F,0x00
-} } };
+static const struct in6_addr *swrap_ipv6(void)
+{
+ static struct in6_addr v;
+ static int initialized;
+ int ret;
+
+ if (initialized) {
+ return &v;
+ }
+ initialized = 1;
+
+ ret = inet_pton(AF_INET6, "FD00::5357:5F00", &v);
+ if (ret <= 0) {
+ abort();
+ }
+
+ return &v;
+}
#endif
static struct sockaddr *sockaddr_dup(const void *data, socklen_t len)
int bcast;
int is_server;
int connected;
+ int defer_connect;
char *path;
char *tmp_path;
memset(in2, 0, sizeof(*in2));
in2->sin6_family = AF_INET6;
- in2->sin6_addr = swrap_ipv6;
+ in2->sin6_addr = *swrap_ipv6();
in2->sin6_addr.s6_addr[15] = iface;
in2->sin6_port = htons(prt);
cmp = in->sin6_addr;
cmp.s6_addr[15] = 0;
- if (IN6_ARE_ADDR_EQUAL(&swrap_ipv6, &cmp)) {
+ if (IN6_ARE_ADDR_EQUAL(swrap_ipv6(), &cmp)) {
iface = in->sin6_addr.s6_addr[15];
} else {
errno = ENETUNREACH;
cmp.s6_addr[15] = 0;
if (IN6_IS_ADDR_UNSPECIFIED(&in->sin6_addr)) {
iface = socket_wrapper_default_iface();
- } else if (IN6_ARE_ADDR_EQUAL(&swrap_ipv6, &cmp)) {
+ } else if (IN6_ARE_ADDR_EQUAL(swrap_ipv6(), &cmp)) {
iface = in->sin6_addr.s6_addr[15];
} else {
errno = EADDRNOTAVAIL;
memset(&in6, 0, sizeof(in6));
in6.sin6_family = AF_INET6;
- in6.sin6_addr = swrap_ipv6;
+ in6.sin6_addr = *swrap_ipv6();
in6.sin6_addr.s6_addr[15] = socket_wrapper_default_iface();
si->myname_len = sizeof(in6);
si->myname = sockaddr_dup(&in6, si->myname_len);
ret = sockaddr_convert_to_un(si, (const struct sockaddr *)serv_addr, addrlen, &un_addr, 0, NULL);
if (ret == -1) return -1;
- swrap_dump_packet(si, serv_addr, SWRAP_CONNECT_SEND, NULL, 0);
+ if (si->type == SOCK_DGRAM) {
+ si->defer_connect = 1;
+ ret = 0;
+ } else {
+ swrap_dump_packet(si, serv_addr, SWRAP_CONNECT_SEND, NULL, 0);
- ret = real_connect(s, (struct sockaddr *)&un_addr,
- sizeof(struct sockaddr_un));
+ ret = real_connect(s, (struct sockaddr *)&un_addr,
+ sizeof(struct sockaddr_un));
+ }
/* to give better errors */
if (ret == -1 && errno == ENOENT) {
si->peername_len = addrlen;
si->peername = sockaddr_dup(serv_addr, addrlen);
si->connected = 1;
- }
- if (si->type != SOCK_STREAM) {
- return ret;
- }
-
- if (ret == 0) {
swrap_dump_packet(si, serv_addr, SWRAP_CONNECT_RECV, NULL, 0);
swrap_dump_packet(si, serv_addr, SWRAP_CONNECT_ACK, NULL, 0);
} else {
return len;
}
-
+
+ if (si->defer_connect) {
+ ret = real_connect(s, (struct sockaddr *)&un_addr,
+ sizeof(un_addr));
+
+ /* to give better errors */
+ if (ret == -1 && errno == ENOENT) {
+ errno = EHOSTUNREACH;
+ }
+
+ if (ret == -1) {
+ return ret;
+ }
+ si->defer_connect = 0;
+ }
+
ret = real_sendto(s, buf, len, flags, (struct sockaddr *)&un_addr, sizeof(un_addr));
break;
default:
len = MIN(len, 1500);
+ if (si->defer_connect) {
+ struct sockaddr_un un_addr;
+ int bcast = 0;
+
+ if (si->bound == 0) {
+ ret = swrap_auto_bind(si, si->family);
+ if (ret == -1) return -1;
+ }
+
+ ret = sockaddr_convert_to_un(si, si->peername, si->peername_len,
+ &un_addr, 0, &bcast);
+ if (ret == -1) return -1;
+
+ ret = real_connect(s, (struct sockaddr *)&un_addr,
+ sizeof(un_addr));
+
+ /* to give better errors */
+ if (ret == -1 && errno == ENOENT) {
+ errno = EHOSTUNREACH;
+ }
+
+ if (ret == -1) {
+ return ret;
+ }
+ si->defer_connect = 0;
+ }
+
ret = real_send(s, buf, len, flags);
if (ret == -1) {
return ret;
}
+int swrap_readv(int s, const struct iovec *vector, size_t count)
+{
+ int ret;
+ struct socket_info *si = find_socket_info(s);
+ struct iovec v;
+
+ if (!si) {
+ return real_readv(s, vector, count);
+ }
+
+ /* we read 1500 bytes as maximum */
+ if (count > 0) {
+ size_t i, len = 0;
+
+ for (i=0; i < count; i++) {
+ size_t nlen;
+ nlen = len + vector[i].iov_len;
+ if (nlen > 1500) {
+ break;
+ }
+ }
+ count = i;
+ if (count == 0) {
+ v = vector[0];
+ v.iov_len = MIN(v.iov_len, 1500);
+ vector = &v;
+ count = 1;
+ }
+ }
+
+ ret = real_readv(s, vector, count);
+ if (ret == -1 && errno != EAGAIN && errno != ENOBUFS) {
+ swrap_dump_packet(si, NULL, SWRAP_RECV_RST, NULL, 0);
+ } else if (ret == 0) { /* END OF FILE */
+ swrap_dump_packet(si, NULL, SWRAP_RECV_RST, NULL, 0);
+ } else if (ret > 0) {
+ uint8_t *buf;
+ off_t ofs = 0;
+ size_t i;
+
+ /* we capture it as one single packet */
+ buf = (uint8_t *)malloc(ret);
+ if (!buf) {
+ /* we just not capture the packet */
+ errno = 0;
+ return ret;
+ }
+
+ for (i=0; i < count; i++) {
+ memcpy(buf + ofs,
+ vector[i].iov_base,
+ vector[i].iov_len);
+ ofs += vector[i].iov_len;
+ }
+
+ swrap_dump_packet(si, NULL, SWRAP_RECV, buf, ret);
+ free(buf);
+ }
+
+ return ret;
+}
+
+int swrap_writev(int s, const struct iovec *vector, size_t count)
+{
+ int ret;
+ struct socket_info *si = find_socket_info(s);
+ struct iovec v;
+
+ if (!si) {
+ return real_writev(s, vector, count);
+ }
+
+ /* we write 1500 bytes as maximum */
+ if (count > 0) {
+ size_t i, len = 0;
+
+ for (i=0; i < count; i++) {
+ size_t nlen;
+ nlen = len + vector[i].iov_len;
+ if (nlen > 1500) {
+ break;
+ }
+ }
+ count = i;
+ if (count == 0) {
+ v = vector[0];
+ v.iov_len = MIN(v.iov_len, 1500);
+ vector = &v;
+ count = 1;
+ }
+ }
+
+ ret = real_writev(s, vector, count);
+ if (ret == -1) {
+ swrap_dump_packet(si, NULL, SWRAP_SEND_RST, NULL, 0);
+ } else {
+ uint8_t *buf;
+ off_t ofs = 0;
+ size_t i;
+
+ /* we capture it as one single packet */
+ buf = (uint8_t *)malloc(ret);
+ if (!buf) {
+ /* we just not capture the packet */
+ errno = 0;
+ return ret;
+ }
+
+ for (i=0; i < count; i++) {
+ memcpy(buf + ofs,
+ vector[i].iov_base,
+ vector[i].iov_len);
+ ofs += vector[i].iov_len;
+ }
+
+ swrap_dump_packet(si, NULL, SWRAP_SEND, buf, ret);
+ free(buf);
+ }
+
+ return ret;
+}
+
_PUBLIC_ int swrap_close(int fd)
{
struct socket_info *si = find_socket_info(fd);
git.samba.org / ira / wip.git / blobdiff