sizeof(addr)));
sp = addr;
}
- ret = inet_pton(AF_INET6, addr, &dest6);
+ ret = inet_pton(AF_INET6, sp, &dest6);
if (ret > 0) {
return true;
}
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = flags;
+ /* Linux man page on getaddinfo() says port will be
+ uninitialized when service string in NULL */
+
ret = getaddrinfo(str, NULL,
&hints,
ppres);
+
if (ret) {
- DEBUG(3,("interpret_string_addr_interal: getaddrinfo failed "
+ DEBUG(3,("interpret_string_addr_internal: getaddrinfo failed "
"for name %s [%s]\n",
str,
gai_strerror(ret) ));
Convert an IPv6 struct in_addr to a struct sockaddr_storage.
********************************************************************/
-void in6_addr_to_sockaddr_storage(struct sockaddr_storage *ss,
+ void in6_addr_to_sockaddr_storage(struct sockaddr_storage *ss,
struct in6_addr ip)
{
struct sockaddr_in6 *sa = (struct sockaddr_in6 *)ss;
return false;
}
+/****************************************************************************
+ Get a port number in host byte order from a sockaddr_storage.
+****************************************************************************/
+
+uint16_t get_sockaddr_port(const struct sockaddr_storage *pss)
+{
+ uint16_t port = 0;
+
+ if (pss->ss_family != AF_INET) {
+#if defined(HAVE_IPV6)
+ /* IPv6 */
+ const struct sockaddr_in6 *sa6 =
+ (const struct sockaddr_in6 *)pss;
+ port = ntohs(sa6->sin6_port);
+#endif
+ } else {
+ const struct sockaddr_in *sa =
+ (const struct sockaddr_in *)pss;
+ port = ntohs(sa->sin_port);
+ }
+ return port;
+}
+
/****************************************************************************
Print out an IPv4 or IPv6 address from a struct sockaddr_storage.
****************************************************************************/
char *dest = NULL;
int ret;
- ret = getnameinfo((const struct sockaddr *)pss,
+ /* Linux getnameinfo() man pages says port is unitialized if
+ service name is NULL. */
+
+ ret = sys_getnameinfo((const struct sockaddr *)pss,
sizeof(struct sockaddr_storage),
addr, sizeof(addr),
NULL, 0,
NI_NUMERICHOST);
- if (ret) {
+ if (ret != 0) {
return NULL;
}
+
if (pss->ss_family != AF_INET) {
#if defined(HAVE_IPV6)
- /* IPv6 */
- const struct sockaddr_in6 *sa6 =
- (const struct sockaddr_in6 *)pss;
- uint16_t port = ntohs(sa6->sin6_port);
-
- if (port) {
- dest = talloc_asprintf(ctx,
- "[%s]:%d",
- addr,
- (unsigned int)port);
- } else {
- dest = talloc_asprintf(ctx,
- "[%s]",
- addr);
- }
+ dest = talloc_asprintf(ctx, "[%s]", addr);
#else
return NULL;
#endif
} else {
- const struct sockaddr_in *sa =
- (const struct sockaddr_in *)pss;
- uint16_t port = ntohs(sa->sin_port);
-
- if (port) {
- dest = talloc_asprintf(ctx,
- "%s:%d",
- addr,
- (unsigned int)port);
- } else {
- dest = talloc_asprintf(ctx,
- "%s",
- addr);
- }
+ dest = talloc_asprintf(ctx, "%s", addr);
}
+
return dest;
}
}
#endif
+void set_sockaddr_port(struct sockaddr_storage *psa, uint16 port)
+{
+#if defined(HAVE_IPV6)
+ if (psa->ss_family == AF_INET6) {
+ ((struct sockaddr_in6 *)psa)->sin6_port = htons(port);
+ }
+#endif
+ if (psa->ss_family == AF_INET) {
+ ((struct sockaddr_in *)psa)->sin_port = htons(port);
+ }
+}
+
const char *client_name(int fd)
{
return get_peer_name(fd,false);
void set_socket_options(int fd, const char *options)
{
- fstring tok;
+ TALLOC_CTX *ctx = talloc_stackframe();
+ char *tok;
- while (next_token(&options,tok," \t,", sizeof(tok))) {
+ while (next_token_talloc(ctx, &options, &tok," \t,")) {
int ret=0,i;
int value = 1;
char *p;
}
}
+ TALLOC_FREE(ctx);
print_socket_options(fd);
}
time_out = timeout in milliseconds
****************************************************************************/
-ssize_t read_socket_with_timeout(int fd,
- char *buf,
- size_t mincnt,
- size_t maxcnt,
- unsigned int time_out,
- enum smb_read_errors *pre)
+NTSTATUS read_socket_with_timeout(int fd, char *buf,
+ size_t mincnt, size_t maxcnt,
+ unsigned int time_out,
+ size_t *size_ret)
{
fd_set fds;
int selrtn;
/* just checking .... */
if (maxcnt <= 0)
- return(0);
-
- set_smb_read_error(pre,SMB_READ_OK);
+ return NT_STATUS_OK;
/* Blocking read */
if (time_out == 0) {
if (readret == 0) {
DEBUG(5,("read_socket_with_timeout: "
"blocking read. EOF from client.\n"));
- set_smb_read_error(pre,SMB_READ_EOF);
- return -1;
+ return NT_STATUS_END_OF_FILE;
}
if (readret == -1) {
"read error = %s.\n",
strerror(errno) ));
}
- set_smb_read_error(pre,SMB_READ_ERROR);
- return -1;
+ return map_nt_error_from_unix(errno);
}
nread += readret;
}
- return((ssize_t)nread);
+ goto done;
}
/* Most difficult - timeout read */
"read. select error = %s.\n",
strerror(errno) ));
}
- set_smb_read_error(pre,SMB_READ_ERROR);
- return -1;
+ return map_nt_error_from_unix(errno);
}
/* Did we timeout ? */
if (selrtn == 0) {
DEBUG(10,("read_socket_with_timeout: timeout read. "
"select timed out.\n"));
- set_smb_read_error(pre,SMB_READ_TIMEOUT);
- return -1;
+ return NT_STATUS_IO_TIMEOUT;
}
readret = sys_read(fd, buf+nread, maxcnt-nread);
/* we got EOF on the file descriptor */
DEBUG(5,("read_socket_with_timeout: timeout read. "
"EOF from client.\n"));
- set_smb_read_error(pre,SMB_READ_EOF);
- return -1;
+ return NT_STATUS_END_OF_FILE;
}
if (readret == -1) {
"read. read error = %s.\n",
strerror(errno) ));
}
- set_smb_read_error(pre,SMB_READ_ERROR);
- return -1;
+ return map_nt_error_from_unix(errno);
}
nread += readret;
}
+ done:
/* Return the number we got */
- return (ssize_t)nread;
+ if (size_ret) {
+ *size_ret = nread;
+ }
+ return NT_STATUS_OK;
}
/****************************************************************************
Read data from the client, reading exactly N bytes.
****************************************************************************/
-ssize_t read_data(int fd,char *buffer,size_t N, enum smb_read_errors *pre)
+NTSTATUS read_data(int fd, char *buffer, size_t N)
{
- ssize_t ret;
- size_t total=0;
- char addr[INET6_ADDRSTRLEN];
-
- set_smb_read_error(pre,SMB_READ_OK);
-
- while (total < N) {
- ret = sys_read(fd,buffer + total,N - total);
-
- if (ret == 0) {
- DEBUG(10,("read_data: read of %d returned 0. "
- "Error = %s\n",
- (int)(N - total), strerror(errno) ));
- set_smb_read_error(pre,SMB_READ_EOF);
- return 0;
- }
-
- if (ret == -1) {
- if (fd == get_client_fd()) {
- /* Try and give an error message saying
- * what client failed. */
- DEBUG(0,("read_data: read failure for %d "
- "bytes to client %s. Error = %s\n",
- (int)(N - total),
- get_peer_addr(fd,addr,sizeof(addr)),
- strerror(errno) ));
- } else {
- DEBUG(0,("read_data: read failure for %d. "
- "Error = %s\n",
- (int)(N - total),
- strerror(errno) ));
- }
- set_smb_read_error(pre,SMB_READ_ERROR);
- return -1;
- }
- total += ret;
- }
- return (ssize_t)total;
+ return read_socket_with_timeout(fd, buffer, N, N, 0, NULL);
}
/****************************************************************************
Timeout is in milliseconds.
****************************************************************************/
-ssize_t read_smb_length_return_keepalive(int fd,
- char *inbuf,
- unsigned int timeout,
- enum smb_read_errors *pre)
+NTSTATUS read_smb_length_return_keepalive(int fd, char *inbuf,
+ unsigned int timeout,
+ size_t *len)
{
- ssize_t len=0;
int msg_type;
- bool ok = false;
+ NTSTATUS status;
- while (!ok) {
- if (timeout > 0) {
- ok = (read_socket_with_timeout(fd,inbuf,4,4,
- timeout,pre) == 4);
- } else {
- ok = (read_data(fd,inbuf,4,pre) == 4);
- }
- if (!ok) {
- return -1;
- }
+ status = read_socket_with_timeout(fd, inbuf, 4, 4, timeout, NULL);
- len = smb_len(inbuf);
- msg_type = CVAL(inbuf,0);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
- if (msg_type == SMBkeepalive) {
- DEBUG(5,("Got keepalive packet\n"));
- }
+ *len = smb_len(inbuf);
+ msg_type = CVAL(inbuf,0);
+
+ if (msg_type == SMBkeepalive) {
+ DEBUG(5,("Got keepalive packet\n"));
}
- DEBUG(10,("got smb length of %lu\n",(unsigned long)len));
+ DEBUG(10,("got smb length of %lu\n",(unsigned long)(*len)));
- return len;
+ return NT_STATUS_OK;
}
/****************************************************************************
Timeout is in milliseconds.
****************************************************************************/
-ssize_t read_smb_length(int fd, char *inbuf, unsigned int timeout, enum smb_read_errors *pre)
+NTSTATUS read_smb_length(int fd, char *inbuf, unsigned int timeout,
+ size_t *len)
{
- ssize_t len;
+ uint8_t msgtype = SMBkeepalive;
- for(;;) {
- len = read_smb_length_return_keepalive(fd, inbuf, timeout, pre);
+ while (msgtype == SMBkeepalive) {
+ NTSTATUS status;
- if(len < 0)
- return len;
+ status = read_smb_length_return_keepalive(fd, inbuf, timeout,
+ len);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
- /* Ignore session keepalives. */
- if(CVAL(inbuf,0) != SMBkeepalive)
- break;
+ msgtype = CVAL(inbuf, 0);
}
DEBUG(10,("read_smb_length: got smb length of %lu\n",
(unsigned long)len));
- return len;
+ return NT_STATUS_OK;
}
/****************************************************************************
Doesn't check the MAC on signed packets.
****************************************************************************/
-ssize_t receive_smb_raw(int fd,
- char *buffer,
- unsigned int timeout,
- size_t maxlen,
- enum smb_read_errors *pre)
+NTSTATUS receive_smb_raw(int fd, char *buffer, unsigned int timeout,
+ size_t maxlen, size_t *p_len)
{
- ssize_t len,ret;
-
- set_smb_read_error(pre,SMB_READ_OK);
-
- len = read_smb_length_return_keepalive(fd,buffer,timeout,pre);
- if (len < 0) {
- DEBUG(10,("receive_smb_raw: length < 0!\n"));
+ size_t len;
+ NTSTATUS status;
- /*
- * Correct fix. smb_read_error may have already been
- * set. Only set it here if not already set. Global
- * variables still suck :-). JRA.
- */
+ status = read_smb_length_return_keepalive(fd,buffer,timeout,&len);
- cond_set_smb_read_error(pre,SMB_READ_ERROR);
- return -1;
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("receive_smb_raw: %s!\n", nt_errstr(status)));
+ return status;
}
/*
DEBUG(0,("Invalid packet length! (%lu bytes).\n",
(unsigned long)len));
if (len > BUFFER_SIZE + (SAFETY_MARGIN/2)) {
-
- /*
- * Correct fix. smb_read_error may have already been
- * set. Only set it here if not already set. Global
- * variables still suck :-). JRA.
- */
-
- cond_set_smb_read_error(pre,SMB_READ_ERROR);
- return -1;
+ return NT_STATUS_INVALID_PARAMETER;
}
}
len = MIN(len,maxlen);
}
- if (timeout > 0) {
- ret = read_socket_with_timeout(fd,
- buffer+4,
- len,
- len,
- timeout,
- pre);
- } else {
- ret = read_data(fd,buffer+4,len,pre);
- }
+ status = read_socket_with_timeout(
+ fd, buffer+4, len, len, timeout, &len);
- if (ret != len) {
- cond_set_smb_read_error(pre,SMB_READ_ERROR);
- return -1;
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
}
/* not all of samba3 properly checks for packet-termination
SSVAL(buffer+4,len, 0);
}
- return len;
-}
-
-/****************************************************************************
- Wrapper for receive_smb_raw().
- Checks the MAC on signed packets.
-****************************************************************************/
-
-bool receive_smb(int fd, char *buffer, unsigned int timeout, enum smb_read_errors *pre)
-{
- if (receive_smb_raw(fd, buffer, timeout, 0, pre) < 0) {
- return false;
- }
-
- /* Check the incoming SMB signature. */
- if (!srv_check_sign_mac(buffer, true)) {
- DEBUG(0, ("receive_smb: SMB Signature verification "
- "failed on incoming packet!\n"));
- cond_set_smb_read_error(pre,SMB_READ_BAD_SIG);
- return false;
- }
-
- return true;
-}
-
-/****************************************************************************
- Send an smb to a fd.
-****************************************************************************/
-
-bool send_smb(int fd, char *buffer)
-{
- size_t len;
- size_t nwritten=0;
- ssize_t ret;
-
- /* Sign the outgoing packet if required. */
- srv_calculate_sign_mac(buffer);
-
- len = smb_len(buffer) + 4;
-
- while (nwritten < len) {
- ret = write_data(fd,buffer+nwritten,len - nwritten);
- if (ret <= 0) {
- DEBUG(0,("Error writing %d bytes to client. %d. (%s)\n",
- (int)len,(int)ret, strerror(errno) ));
- return false;
- }
- nwritten += ret;
- }
-
- return true;
+ *p_len = len;
+ return NT_STATUS_OK;
}
/****************************************************************************
/* and connect it to the destination */
connect_again:
- ret = connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out));
+ ret = sys_connect(res, (struct sockaddr *)&sock_out);
/* Some systems return EAGAIN when they mean EINPROGRESS */
if (ret < 0 && (errno == EINPROGRESS || errno == EALREADY ||
good_connect = false;
for (i=0; i<num_addrs; i++) {
+ const struct sockaddr * a =
+ (const struct sockaddr *)&(addrs[i]);
if (sockets[i] == -1)
continue;
- if (connect(sockets[i], (struct sockaddr *)&(addrs[i]),
- sizeof(*addrs)) == 0) {
+ if (sys_connect(sockets[i], a) == 0) {
/* Rather unlikely as we are non-blocking, but it
* might actually happen. */
resulting_index = i;
sock_out.sin_port = htons(port);
sock_out.sin_family = PF_INET;
- if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))) {
+ if (sys_connect(res,(struct sockaddr *)&sock_out)) {
close(res);
return -1;
}
return false;
}
-static struct {
- struct sockaddr_storage ss;
- char *name;
-} nc;
+/*******************************************************************
+ Deal with the singleton cache.
+******************************************************************/
+
+struct name_addr_pair {
+ struct sockaddr_storage ss;
+ const char *name;
+};
+
+/*******************************************************************
+ Lookup a name/addr pair. Returns memory allocated from memcache.
+******************************************************************/
+
+static bool lookup_nc(struct name_addr_pair *nc)
+{
+ DATA_BLOB tmp;
+
+ ZERO_STRUCTP(nc);
+
+ if (!memcache_lookup(
+ NULL, SINGLETON_CACHE,
+ data_blob_string_const("get_peer_name"),
+ &tmp)) {
+ return false;
+ }
+
+ memcpy(&nc->ss, tmp.data, sizeof(nc->ss));
+ nc->name = (const char *)tmp.data + sizeof(nc->ss);
+ return true;
+}
+
+/*******************************************************************
+ Save a name/addr pair.
+******************************************************************/
+
+static void store_nc(const struct name_addr_pair *nc)
+{
+ DATA_BLOB tmp;
+ size_t namelen = strlen(nc->name);
+
+ tmp = data_blob(NULL, sizeof(nc->ss) + namelen + 1);
+ if (!tmp.data) {
+ return;
+ }
+ memcpy(tmp.data, &nc->ss, sizeof(nc->ss));
+ memcpy(tmp.data+sizeof(nc->ss), nc->name, namelen+1);
+
+ memcache_add(NULL, SINGLETON_CACHE,
+ data_blob_string_const("get_peer_name"),
+ tmp);
+ data_blob_free(&tmp);
+}
/*******************************************************************
Return the DNS name of the remote end of a socket.
******************************************************************/
-const char *get_peer_name(int fd,
- bool force_lookup)
+const char *get_peer_name(int fd, bool force_lookup)
{
+ struct name_addr_pair nc;
char addr_buf[INET6_ADDRSTRLEN];
struct sockaddr_storage ss;
socklen_t length = sizeof(ss);
possible */
if (!lp_hostname_lookups() && (force_lookup == false)) {
length = sizeof(nc.ss);
- p = get_peer_addr_internal(fd, addr_buf, sizeof(addr_buf),
+ nc.name = get_peer_addr_internal(fd, addr_buf, sizeof(addr_buf),
&nc.ss, &length);
- SAFE_FREE(nc.name);
- nc.name = SMB_STRDUP(p);
+ store_nc(&nc);
+ lookup_nc(&nc);
return nc.name ? nc.name : "UNKNOWN";
}
+ lookup_nc(&nc);
+
memset(&ss, '\0', sizeof(ss));
p = get_peer_addr_internal(fd, addr_buf, sizeof(addr_buf), &ss, &length);
return nc.name ? nc.name : "UNKNOWN";
}
- /* Not the same. Reset the cache. */
- zero_addr(&nc.ss);
- SAFE_FREE(nc.name);
+ /* Not the same. We need to lookup. */
if (fd == -1) {
return "UNKNOWN";
}
/* Look up the remote host name. */
- ret = getnameinfo((struct sockaddr *)&ss,
+ ret = sys_getnameinfo((struct sockaddr *)&ss,
length,
name_buf,
sizeof(name_buf),
strlcpy(name_buf, "UNKNOWN", sizeof(name_buf));
}
- nc.name = SMB_STRDUP(name_buf);
+ nc.name = name_buf;
+ nc.ss = ss;
+
+ store_nc(&nc);
+ lookup_nc(&nc);
return nc.name ? nc.name : "UNKNOWN";
}
goto out_close;
}
- asprintf(&path, "%s/%s", socket_dir, socket_name);
- if (!path) {
+ if (asprintf(&path, "%s/%s", socket_dir, socket_name) == -1) {
goto out_close;
}
out_close:
SAFE_FREE(path);
- close(sock);
+ if (sock != -1)
+ close(sock);
out_umask:
umask(old_umask);
const char *get_mydnsfullname(void)
{
- static char *dnshostname_cache;
-
- if (dnshostname_cache == NULL || !*dnshostname_cache) {
- struct addrinfo *res = NULL;
- char my_hostname[HOST_NAME_MAX];
- bool ret;
+ struct addrinfo *res = NULL;
+ char my_hostname[HOST_NAME_MAX];
+ bool ret;
+ DATA_BLOB tmp;
- /* get my host name */
- if (gethostname(my_hostname, sizeof(my_hostname)) == -1) {
- DEBUG(0,("get_mydnsfullname: gethostname failed\n"));
- return NULL;
- }
+ if (memcache_lookup(NULL, SINGLETON_CACHE,
+ data_blob_string_const("get_mydnsfullname"),
+ &tmp)) {
+ SMB_ASSERT(tmp.length > 0);
+ return (const char *)tmp.data;
+ }
- /* Ensure null termination. */
- my_hostname[sizeof(my_hostname)-1] = '\0';
+ /* get my host name */
+ if (gethostname(my_hostname, sizeof(my_hostname)) == -1) {
+ DEBUG(0,("get_mydnsfullname: gethostname failed\n"));
+ return NULL;
+ }
- ret = interpret_string_addr_internal(&res,
- my_hostname,
- AI_ADDRCONFIG|AI_CANONNAME);
+ /* Ensure null termination. */
+ my_hostname[sizeof(my_hostname)-1] = '\0';
- if (!ret || res == NULL) {
- DEBUG(3,("get_mydnsfullname: getaddrinfo failed for "
- "name %s [%s]\n",
+ ret = interpret_string_addr_internal(&res,
my_hostname,
- gai_strerror(ret) ));
- return NULL;
- }
+ AI_ADDRCONFIG|AI_CANONNAME);
- /*
- * Make sure that getaddrinfo() returns the "correct" host name.
- */
+ if (!ret || res == NULL) {
+ DEBUG(3,("get_mydnsfullname: getaddrinfo failed for "
+ "name %s [%s]\n",
+ my_hostname,
+ gai_strerror(ret) ));
+ return NULL;
+ }
- if (res->ai_canonname == NULL) {
- DEBUG(3,("get_mydnsfullname: failed to get "
- "canonical name for %s\n",
- my_hostname));
- freeaddrinfo(res);
- return NULL;
- }
+ /*
+ * Make sure that getaddrinfo() returns the "correct" host name.
+ */
- dnshostname_cache = SMB_STRDUP(res->ai_canonname);
+ if (res->ai_canonname == NULL) {
+ DEBUG(3,("get_mydnsfullname: failed to get "
+ "canonical name for %s\n",
+ my_hostname));
freeaddrinfo(res);
+ return NULL;
}
- return dnshostname_cache;
+
+ /* This copies the data, so we must do a lookup
+ * afterwards to find the value to return.
+ */
+
+ memcache_add(NULL, SINGLETON_CACHE,
+ data_blob_string_const("get_mydnsfullname"),
+ data_blob_string_const(res->ai_canonname));
+
+ if (!memcache_lookup(NULL, SINGLETON_CACHE,
+ data_blob_string_const("get_mydnsfullname"),
+ &tmp)) {
+ tmp = data_blob_talloc(talloc_tos(), res->ai_canonname,
+ strlen(res->ai_canonname) + 1);
+ }
+
+ freeaddrinfo(res);
+
+ return (const char *)tmp.data;
}
/************************************************************
git.samba.org / ira / wip.git / blobdiff