diff options
Diffstat (limited to 'source3')
| -rw-r--r-- | source3/lib/util_sock.c | 494 |
1 files changed, 240 insertions, 254 deletions
diff --git a/source3/lib/util_sock.c b/source3/lib/util_sock.c index 9dcbdd9f02..eecbb9eec4 100644 --- a/source3/lib/util_sock.c +++ b/source3/lib/util_sock.c @@ -1,20 +1,20 @@ -/* +/* Unix SMB/CIFS implementation. Samba utility functions Copyright (C) Andrew Tridgell 1992-1998 Copyright (C) Tim Potter 2000-2001 Copyright (C) Jeremy Allison 1992-2005 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ @@ -31,7 +31,9 @@ static char client_ip_string[16]; void client_setfd(int fd) { client_fd = fd; - safe_strcpy(client_ip_string, get_peer_addr(client_fd), sizeof(client_ip_string)-1); + safe_strcpy(client_ip_string, + get_peer_addr(client_fd), + sizeof(client_ip_string)-1); } static char *get_socket_addr(int fd) @@ -46,14 +48,15 @@ static char *get_socket_addr(int fd) if (fd == -1) { return addr_buf; } - + if (getsockname(fd, &sa, &length) < 0) { - DEBUG(0,("getsockname failed. Error was %s\n", strerror(errno) )); + DEBUG(0,("getsockname failed. Error was %s\n", + strerror(errno) )); return addr_buf; } - + fstrcpy(addr_buf,(char *)inet_ntoa(sockin->sin_addr)); - + return addr_buf; } @@ -65,12 +68,13 @@ static int get_socket_port(int fd) if (fd == -1) return -1; - + if (getsockname(fd, &sa, &length) < 0) { - DEBUG(0,("getpeername failed. Error was %s\n", strerror(errno) )); + DEBUG(0,("getpeername failed. Error was %s\n", + strerror(errno) )); return -1; } - + return ntohs(sockin->sin_port); } @@ -98,12 +102,13 @@ struct in_addr *client_inaddr(struct sockaddr *sa) { struct sockaddr_in *sockin = (struct sockaddr_in *) (sa); socklen_t length = sizeof(*sa); - + if (getpeername(client_fd, sa, &length) < 0) { - DEBUG(0,("getpeername failed. Error was %s\n", strerror(errno) )); + DEBUG(0,("getpeername failed. Error was %s\n", + strerror(errno) )); return NULL; } - + return &sockin->sin_addr; } @@ -138,50 +143,50 @@ typedef struct smb_socket_option { } smb_socket_option; static const smb_socket_option socket_options[] = { - {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL}, - {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL}, - {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL}, + {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL}, + {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL}, + {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL}, #ifdef TCP_NODELAY - {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL}, + {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL}, #endif #ifdef TCP_KEEPCNT - {"TCP_KEEPCNT", IPPROTO_TCP, TCP_KEEPCNT, 0, OPT_INT}, + {"TCP_KEEPCNT", IPPROTO_TCP, TCP_KEEPCNT, 0, OPT_INT}, #endif #ifdef TCP_KEEPIDLE - {"TCP_KEEPIDLE", IPPROTO_TCP, TCP_KEEPIDLE, 0, OPT_INT}, + {"TCP_KEEPIDLE", IPPROTO_TCP, TCP_KEEPIDLE, 0, OPT_INT}, #endif #ifdef TCP_KEEPINTVL - {"TCP_KEEPINTVL", IPPROTO_TCP, TCP_KEEPINTVL, 0, OPT_INT}, + {"TCP_KEEPINTVL", IPPROTO_TCP, TCP_KEEPINTVL, 0, OPT_INT}, #endif #ifdef IPTOS_LOWDELAY - {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON}, + {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON}, #endif #ifdef IPTOS_THROUGHPUT - {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON}, + {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON}, #endif #ifdef SO_REUSEPORT - {"SO_REUSEPORT", SOL_SOCKET, SO_REUSEPORT, 0, OPT_BOOL}, + {"SO_REUSEPORT", SOL_SOCKET, SO_REUSEPORT, 0, OPT_BOOL}, #endif #ifdef SO_SNDBUF - {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT}, + {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT}, #endif #ifdef SO_RCVBUF - {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT}, + {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT}, #endif #ifdef SO_SNDLOWAT - {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT}, + {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT}, #endif #ifdef SO_RCVLOWAT - {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT}, + {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT}, #endif #ifdef SO_SNDTIMEO - {"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT}, + {"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT}, #endif #ifdef SO_RCVTIMEO - {"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT}, + {"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT}, #endif #ifdef TCP_FASTACK - {"TCP_FASTACK", IPPROTO_TCP, TCP_FASTACK, 0, OPT_INT}, + {"TCP_FASTACK", IPPROTO_TCP, TCP_FASTACK, 0, OPT_INT}, #endif {NULL,0,0,0,0}}; @@ -195,14 +200,18 @@ static void print_socket_options(int s) socklen_t vlen = 4; const smb_socket_option *p = &socket_options[0]; - /* wrapped in if statement to prevent streams leak in SCO Openserver 5.0 */ + /* wrapped in if statement to prevent streams + * leak in SCO Openserver 5.0 */ /* reported on samba-technical --jerry */ if ( DEBUGLEVEL >= 5 ) { - for (; p->name != NULL; p++) { - if (getsockopt(s, p->level, p->option, (void *)&value, &vlen) == -1) { - DEBUG(5,("Could not test socket option %s.\n", p->name)); - } else { - DEBUG(5,("socket option %s = %d\n",p->name,value)); + for (; p->name != NULL; p++) { + if (getsockopt(s, p->level, p->option, + (void *)&value, &vlen) == -1) { + DEBUG(5,("Could not test socket option %s.\n", + p->name)); + } else { + DEBUG(5,("socket option %s = %d\n", + p->name,value)); } } } @@ -241,23 +250,28 @@ void set_socket_options(int fd, const char *options) case OPT_BOOL: case OPT_INT: ret = setsockopt(fd,socket_options[i].level, - socket_options[i].option,(char *)&value,sizeof(int)); + socket_options[i].option, + (char *)&value,sizeof(int)); break; case OPT_ON: if (got_value) - DEBUG(0,("syntax error - %s does not take a value\n",tok)); + DEBUG(0,("syntax error - %s " + "does not take a value\n",tok)); { int on = socket_options[i].value; ret = setsockopt(fd,socket_options[i].level, - socket_options[i].option,(char *)&on,sizeof(int)); + socket_options[i].option, + (char *)&on,sizeof(int)); } - break; + break; + } + + if (ret != 0) { + DEBUG(0,("Failed to set socket option %s (Error %s)\n", + tok, strerror(errno) )); } - - if (ret != 0) - DEBUG(0,("Failed to set socket option %s (Error %s)\n",tok, strerror(errno) )); } print_socket_options(fd); @@ -275,13 +289,16 @@ ssize_t read_udp_socket(int fd,char *buf,size_t len) memset((char *)&sock,'\0',socklen); memset((char *)&lastip,'\0',sizeof(lastip)); - ret = (ssize_t)sys_recvfrom(fd,buf,len,0,(struct sockaddr *)&sock,&socklen); + ret = (ssize_t)sys_recvfrom(fd,buf,len,0, + (struct sockaddr *)&sock,&socklen); if (ret <= 0) { /* Don't print a low debug error for a non-blocking socket. */ if (errno == EAGAIN) { - DEBUG(10,("read socket returned EAGAIN. ERRNO=%s\n",strerror(errno))); + DEBUG(10,("read socket returned EAGAIN. ERRNO=%s\n", + strerror(errno))); } else { - DEBUG(2,("read socket failed. ERRNO=%s\n",strerror(errno))); + DEBUG(2,("read socket failed. ERRNO=%s\n", + strerror(errno))); } return(0); } @@ -295,99 +312,6 @@ ssize_t read_udp_socket(int fd,char *buf,size_t len) return(ret); } -#if 0 - -Socket routines from HEAD - maybe re-enable in future. JRA. - -/**************************************************************************** - Work out if we've timed out. -****************************************************************************/ - -static BOOL timeout_until(struct timeval *timeout, const struct timeval *endtime) -{ - struct timeval now; - SMB_BIG_INT t_dif; - - GetTimeOfDay(&now); - - t_dif = usec_time_diff(endtime, &now); - if (t_dif <= 0) { - return False; - } - - timeout->tv_sec = (t_dif / (SMB_BIG_INT)1000000); - timeout->tv_usec = (t_dif % (SMB_BIG_INT)1000000); - return True; -} - -/**************************************************************************** - Read data from the client, reading exactly N bytes, or until endtime timeout. - Use with a non-blocking socket if endtime != NULL. -****************************************************************************/ - -ssize_t read_data_until(int fd,char *buffer,size_t N, const struct timeval *endtime) -{ - ssize_t ret; - size_t total=0; - - smb_read_error = 0; - - while (total < N) { - - if (endtime != NULL) { - fd_set r_fds; - struct timeval timeout; - int selrtn; - - if (!timeout_until(&timeout, endtime)) { - DEBUG(10,("read_data_until: read timed out\n")); - smb_read_error = READ_TIMEOUT; - return -1; - } - - FD_ZERO(&r_fds); - FD_SET(fd, &r_fds); - - /* Select but ignore EINTR. */ - selrtn = sys_select_intr(fd+1, &r_fds, NULL, NULL, &timeout); - if (selrtn == -1) { - /* something is wrong. Maybe the socket is dead? */ - DEBUG(0,("read_data_until: select error = %s.\n", strerror(errno) )); - smb_read_error = READ_ERROR; - return -1; - } - - /* Did we timeout ? */ - if (selrtn == 0) { - DEBUG(10,("read_data_until: select timed out.\n")); - smb_read_error = READ_TIMEOUT; - return -1; - } - } - - ret = sys_read(fd,buffer + total,N - total); - - if (ret == 0) { - DEBUG(10,("read_data_until: read of %d returned 0. Error = %s\n", (int)(N - total), strerror(errno) )); - smb_read_error = READ_EOF; - return 0; - } - - if (ret == -1) { - if (errno == EAGAIN) { - /* Non-blocking socket with no data available. Try select again. */ - continue; - } - DEBUG(0,("read_data_until: read failure for %d. Error = %s\n", (int)(N - total), strerror(errno) )); - smb_read_error = READ_ERROR; - return -1; - } - total += ret; - } - return (ssize_t)total; -} -#endif - /**************************************************************************** Read data from a socket with a timout in msec. mincount = if timeout, minimum to read before returning @@ -395,42 +319,52 @@ ssize_t read_data_until(int fd,char *buffer,size_t N, const struct timeval *endt 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) +ssize_t read_socket_with_timeout(int fd, + char *buf, + size_t mincnt, + size_t maxcnt, + unsigned int time_out) { fd_set fds; int selrtn; ssize_t readret; size_t nread = 0; struct timeval timeout; - + /* just checking .... */ if (maxcnt <= 0) return(0); - + smb_read_error = 0; - + /* Blocking read */ if (time_out == 0) { if (mincnt == 0) { mincnt = maxcnt; } - + while (nread < mincnt) { readret = sys_read(fd, buf + nread, maxcnt - nread); - + if (readret == 0) { - DEBUG(5,("read_socket_with_timeout: blocking read. EOF from client.\n")); + DEBUG(5,("read_socket_with_timeout: " + "blocking read. EOF from client.\n")); smb_read_error = READ_EOF; return -1; } - + if (readret == -1) { if (fd == client_fd) { - /* Try and give an error message saying what client failed. */ - DEBUG(0,("read_socket_with_timeout: client %s read error = %s.\n", - client_ip_string, strerror(errno) )); + /* Try and give an error message + * saying what client failed. */ + DEBUG(0,("read_socket_with_timeout: " + "client %s read error = %s.\n", + client_ip_string, + strerror(errno) )); } else { - DEBUG(0,("read_socket_with_timeout: read error = %s.\n", strerror(errno) )); + DEBUG(0,("read_socket_with_timeout: " + "read error = %s.\n", + strerror(errno) )); } smb_read_error = READ_ERROR; return -1; @@ -439,100 +373,119 @@ ssize_t read_socket_with_timeout(int fd,char *buf,size_t mincnt,size_t maxcnt,un } return((ssize_t)nread); } - + /* Most difficult - timeout read */ - /* If this is ever called on a disk file and + /* If this is ever called on a disk file and mincnt is greater then the filesize then - system performance will suffer severely as + system performance will suffer severely as select always returns true on disk files */ - + /* Set initial timeout */ timeout.tv_sec = (time_t)(time_out / 1000); timeout.tv_usec = (long)(1000 * (time_out % 1000)); - - for (nread=0; nread < mincnt; ) { + + for (nread=0; nread < mincnt; ) { FD_ZERO(&fds); FD_SET(fd,&fds); - + selrtn = sys_select_intr(fd+1,&fds,NULL,NULL,&timeout); - + /* Check if error */ if (selrtn == -1) { /* something is wrong. Maybe the socket is dead? */ if (fd == client_fd) { - /* Try and give an error message saying what client failed. */ - DEBUG(0,("read_socket_with_timeout: timeout read for client %s. select error = %s.\n", - client_ip_string, strerror(errno) )); + /* Try and give an error message saying + * what client failed. */ + DEBUG(0,("read_socket_with_timeout: timeout " + "read for client %s. select error = %s.\n", + client_ip_string, strerror(errno) )); } else { - DEBUG(0,("read_socket_with_timeout: timeout read. select error = %s.\n", strerror(errno) )); + DEBUG(0,("read_socket_with_timeout: timeout " + "read. select error = %s.\n", + strerror(errno) )); } smb_read_error = READ_ERROR; return -1; } - + /* Did we timeout ? */ if (selrtn == 0) { - DEBUG(10,("read_socket_with_timeout: timeout read. select timed out.\n")); + DEBUG(10,("read_socket_with_timeout: timeout read. " + "select timed out.\n")); smb_read_error = READ_TIMEOUT; return -1; } - + readret = sys_read(fd, buf+nread, maxcnt-nread); - + if (readret == 0) { /* we got EOF on the file descriptor */ - DEBUG(5,("read_socket_with_timeout: timeout read. EOF from client.\n")); + DEBUG(5,("read_socket_with_timeout: timeout read. " + "EOF from client.\n")); smb_read_error = READ_EOF; return -1; } - + if (readret == -1) { /* the descriptor is probably dead */ if (fd == client_fd) { - /* Try and give an error message saying what client failed. */ - DEBUG(0,("read_socket_with_timeout: timeout read to client %s. read error = %s.\n", + /* Try and give an error message + * saying what client failed. */ + DEBUG(0,("read_socket_with_timeout: timeout " + "read to client %s. read error = %s.\n", client_ip_string, strerror(errno) )); } else { - DEBUG(0,("read_socket_with_timeout: timeout read. read error = %s.\n", strerror(errno) )); + DEBUG(0,("read_socket_with_timeout: timeout " + "read. read error = %s.\n", + strerror(errno) )); } smb_read_error = READ_ERROR; return -1; } - + nread += readret; } - + /* Return the number we got */ return (ssize_t)nread; } /**************************************************************************** - Read data from the client, reading exactly N bytes. + Read data from the client, reading exactly N bytes. ****************************************************************************/ ssize_t read_data(int fd,char *buffer,size_t N) { ssize_t ret; - size_t total=0; - + size_t total=0; + smb_read_error = 0; 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) )); + DEBUG(10,("read_data: read of %d returned 0. " + "Error = %s\n", + (int)(N - total), strerror(errno) )); smb_read_error = READ_EOF; return 0; } if (ret == -1) { if (fd == 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), client_ip_string, strerror(errno) )); + /* 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), + client_ip_string, + strerror(errno) )); } else { - DEBUG(0,("read_data: read failure for %d. Error = %s\n", (int)(N - total), strerror(errno) )); + DEBUG(0,("read_data: read failure for %d. " + "Error = %s\n", + (int)(N - total), + strerror(errno) )); } smb_read_error = READ_ERROR; return -1; @@ -556,11 +509,14 @@ ssize_t write_data(int fd, const char *buffer, size_t N) if (ret == -1) { if (fd == client_fd) { - /* Try and give an error message saying what client failed. */ - DEBUG(0,("write_data: write failure in writing to client %s. Error %s\n", + /* Try and give an error message saying + * what client failed. */ + DEBUG(0,("write_data: write failure in " + "writing to client %s. Error %s\n", client_ip_string, strerror(errno) )); } else { - DEBUG(0,("write_data: write failure. Error = %s\n", strerror(errno) )); + DEBUG(0,("write_data: write failure. " + "Error = %s\n", strerror(errno) )); } return -1; } @@ -588,7 +544,6 @@ BOOL send_keepalive(int client) return(write_data(client,(char *)buf,4) == 4); } - /**************************************************************************** Read 4 bytes of a smb packet and return the smb length of the packet. Store the result in the buffer. @@ -597,26 +552,31 @@ BOOL send_keepalive(int client) Timeout is in milliseconds. ****************************************************************************/ -static ssize_t read_smb_length_return_keepalive(int fd, char *inbuf, unsigned int timeout) +static ssize_t read_smb_length_return_keepalive(int fd, + char *inbuf, + unsigned int timeout) { ssize_t len=0; int msg_type; BOOL ok = False; while (!ok) { - if (timeout > 0) - ok = (read_socket_with_timeout(fd,inbuf,4,4,timeout) == 4); - else + if (timeout > 0) { + ok = (read_socket_with_timeout(fd,inbuf,4,4,timeout) + == 4); + } else { ok = (read_data(fd,inbuf,4) == 4); - - if (!ok) - return(-1); + } + if (!ok) { + return -1; + } len = smb_len(inbuf); msg_type = CVAL(inbuf,0); - if (msg_type == SMBkeepalive) + if (msg_type == SMBkeepalive) { DEBUG(5,("Got keepalive packet\n")); + } } DEBUG(10,("got smb length of %lu\n",(unsigned long)len)); @@ -655,14 +615,17 @@ ssize_t read_smb_length(int fd, char *inbuf, unsigned int timeout) /**************************************************************************** Read an smb from a fd. Note that the buffer *MUST* be of size BUFFER_SIZE+SAFETY_MARGIN. - The timeout is in milliseconds. + The timeout is in milliseconds. This function will return on receipt of a session keepalive packet. maxlen is the max number of bytes to return, not including the 4 byte length. If zero it means BUFFER_SIZE+SAFETY_MARGIN limit. Doesn't check the MAC on signed packets. ****************************************************************************/ -ssize_t receive_smb_raw(int fd, char *buffer, unsigned int timeout, size_t maxlen) +ssize_t receive_smb_raw(int fd, + char *buffer, + unsigned int timeout, + size_t maxlen) { ssize_t len,ret; @@ -689,7 +652,8 @@ ssize_t receive_smb_raw(int fd, char *buffer, unsigned int timeout, size_t maxle */ if (len > (BUFFER_SIZE + LARGE_WRITEX_HDR_SIZE)) { - DEBUG(0,("Invalid packet length! (%lu bytes).\n",(unsigned long)len)); + DEBUG(0,("Invalid packet length! (%lu bytes).\n", + (unsigned long)len)); if (len > BUFFER_SIZE + (SAFETY_MARGIN/2)) { /* @@ -710,7 +674,11 @@ ssize_t receive_smb_raw(int fd, char *buffer, unsigned int timeout, size_t maxle } if (timeout > 0) { - ret = read_socket_with_timeout(fd,buffer+4,len,len,timeout); + ret = read_socket_with_timeout(fd, + buffer+4, + len, + len, + timeout); } else { ret = read_data(fd,buffer+4,len); } @@ -721,9 +689,10 @@ ssize_t receive_smb_raw(int fd, char *buffer, unsigned int timeout, size_t maxle } return -1; } - - /* not all of samba3 properly checks for packet-termination of strings. This - ensures that we don't run off into empty space. */ + + /* not all of samba3 properly checks for packet-termination + * of strings. This ensures that we don't run off into + * empty space. */ SSVAL(buffer+4,len, 0); } @@ -759,7 +728,8 @@ static ssize_t receive_smb_raw_talloc(TALLOC_CTX *mem_ctx, int fd, */ if (len > (BUFFER_SIZE + LARGE_WRITEX_HDR_SIZE)) { - DEBUG(0,("Invalid packet length! (%lu bytes).\n",(unsigned long)len)); + DEBUG(0,("Invalid packet length! (%lu bytes).\n", + (unsigned long)len)); if (len > BUFFER_SIZE + (SAFETY_MARGIN/2)) { /* @@ -823,7 +793,8 @@ BOOL receive_smb(int fd, char *buffer, unsigned int timeout) if (srv_encryption_on()) { NTSTATUS status = srv_decrypt_buffer(buffer); if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("receive_smb: SMB decryption failed on incoming packet! Error %s\n", + DEBUG(0, ("receive_smb: SMB decryption failed " + "on incoming packet! Error %s\n", nt_errstr(status) )); if (smb_read_error == 0) { smb_read_error = READ_BAD_DECRYPT; @@ -834,7 +805,8 @@ BOOL receive_smb(int fd, char *buffer, unsigned int timeout) /* Check the incoming SMB signature. */ if (!srv_check_sign_mac(buffer, True)) { - DEBUG(0, ("receive_smb: SMB Signature verification failed on incoming packet!\n")); + DEBUG(0, ("receive_smb: SMB Signature verification " + "failed on incoming packet!\n")); if (smb_read_error == 0) { smb_read_error = READ_BAD_SIG; } @@ -898,7 +870,8 @@ BOOL send_smb(int fd, char *buffer) if (srv_encryption_on()) { NTSTATUS status = srv_encrypt_buffer(buffer, &buf_out); if (!NT_STATUS_IS_OK(status)) { - DEBUG(0, ("send_smb: SMB encryption failed on outgoing packet! Error %s\n", + DEBUG(0, ("send_smb: SMB encryption failed " + "on outgoing packet! Error %s\n", nt_errstr(status) )); return False; } @@ -925,7 +898,11 @@ BOOL send_smb(int fd, char *buffer) Open a socket of the specified type, port, and address for incoming data. ****************************************************************************/ -int open_socket_in( int type, int port, int dlevel, uint32 socket_addr, BOOL rebind ) +int open_socket_in(int type, + int port, + int dlevel, + uint32 socket_addr, + BOOL rebind ) { struct sockaddr_in sock; int res; @@ -951,19 +928,23 @@ int open_socket_in( int type, int port, int dlevel, uint32 socket_addr, BOOL reb /* This block sets/clears the SO_REUSEADDR and possibly SO_REUSEPORT. */ { int val = rebind ? 1 : 0; - if( setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val)) == -1 ) { + if( setsockopt(res,SOL_SOCKET,SO_REUSEADDR, + (char *)&val,sizeof(val)) == -1 ) { if( DEBUGLVL( dlevel ) ) { dbgtext( "open_socket_in(): setsockopt: " ); - dbgtext( "SO_REUSEADDR = %s ", val?"True":"False" ); + dbgtext( "SO_REUSEADDR = %s ", + val?"True":"False" ); dbgtext( "on port %d failed ", port ); dbgtext( "with error = %s\n", strerror(errno) ); } } #ifdef SO_REUSEPORT - if( setsockopt(res,SOL_SOCKET,SO_REUSEPORT,(char *)&val,sizeof(val)) == -1 ) { + if( setsockopt(res,SOL_SOCKET,SO_REUSEPORT, + (char *)&val,sizeof(val)) == -1 ) { if( DEBUGLVL( dlevel ) ) { dbgtext( "open_socket_in(): setsockopt: "); - dbgtext( "SO_REUSEPORT = %s ", val?"True":"False" ); + dbgtext( "SO_REUSEPORT = %s ", + val?"True":"False" ); dbgtext( "on port %d failed ", port ); dbgtext( "with error = %s\n", strerror(errno) ); } @@ -973,13 +954,15 @@ int open_socket_in( int type, int port, int dlevel, uint32 socket_addr, BOOL reb /* now we've got a socket - we need to bind it */ if( bind( res, (struct sockaddr *)&sock, sizeof(sock) ) == -1 ) { - if( DEBUGLVL(dlevel) && (port == SMB_PORT1 || port == SMB_PORT2 || port == NMB_PORT) ) { + if( DEBUGLVL(dlevel) && (port == SMB_PORT1 || + port == SMB_PORT2 || port == NMB_PORT) ) { dbgtext( "bind failed on port %d ", port ); - dbgtext( "socket_addr = %s.\n", inet_ntoa( sock.sin_addr ) ); + dbgtext( "socket_addr = %s.\n", + inet_ntoa( sock.sin_addr ) ); dbgtext( "Error = %s\n", strerror(errno) ); } - close( res ); - return( -1 ); + close( res ); + return -1; } DEBUG( 10, ( "bind succeeded on port %d\n", port ) ); @@ -1007,10 +990,10 @@ int open_socket_out(int type, struct in_addr *addr, int port ,int timeout) if (type != SOCK_STREAM) return(res); - + memset((char *)&sock_out,'\0',sizeof(sock_out)); putip((char *)&sock_out.sin_addr,(char *)addr); - + sock_out.sin_port = htons( port ); sock_out.sin_family = PF_INET; @@ -1018,7 +1001,7 @@ int open_socket_out(int type, struct in_addr *addr, int port ,int timeout) set_blocking(res,False); DEBUG(3,("Connecting to %s at port %d\n",inet_ntoa(*addr),port)); - + /* and connect it to the destination */ connect_again: @@ -1039,13 +1022,13 @@ int open_socket_out(int type, struct in_addr *addr, int port ,int timeout) if (ret < 0 && (errno == EINPROGRESS || errno == EALREADY || errno == EAGAIN)) { - DEBUG(1,("timeout connecting to %s:%d\n",inet_ntoa(*addr),port)); + DEBUG(1,("timeout connecting to %s:%d\n", + inet_ntoa(*addr),port)); close(res); return -1; } #ifdef EISCONN - if (ret < 0 && errno == EISCONN) { errno = 0; ret = 0; @@ -1259,11 +1242,12 @@ static BOOL matchname(char *remotehost,struct in_addr addr) { struct hostent *hp; int i; - + if ((hp = sys_gethostbyname(remotehost)) == 0) { - DEBUG(0,("sys_gethostbyname(%s): lookup failure.\n", remotehost)); + DEBUG(0,("sys_gethostbyname(%s): lookup failure.\n", + remotehost)); return False; - } + } /* * Make sure that gethostbyname() returns the "correct" host name. @@ -1272,26 +1256,26 @@ static BOOL matchname(char *remotehost,struct in_addr addr) * local DNS, we just have to trust it (all bets are off if the local * DNS is perverted). We always check the address list, though. */ - + if (!strequal(remotehost, hp->h_name) && !strequal(remotehost, "localhost")) { DEBUG(0,("host name/name mismatch: %s != %s\n", remotehost, hp->h_name)); return False; } - + /* Look up the host address in the address list we just got. */ for (i = 0; hp->h_addr_list[i]; i++) { - if (memcmp(hp->h_addr_list[i], (char *) & addr, sizeof(addr)) == 0) + if (memcmp(hp->h_addr_list[i], (char *)&addr,sizeof(addr)) == 0) return True; } - + /* * The host name does not map to the original host address. Perhaps * someone has compromised a name server. More likely someone botched * it, but that could be dangerous, too. */ - + DEBUG(0,("host name/address mismatch: %s != %s\n", inet_ntoa(addr), hp->h_name)); return False; @@ -1317,23 +1301,24 @@ char *get_peer_name(int fd, BOOL force_lookup) if (!lp_hostname_lookups() && (force_lookup == False)) { return get_peer_addr(fd); } - + p = get_peer_addr(fd); /* it might be the same as the last one - save some DNS work */ - if (strcmp(p, addr_buf) == 0) + if (strcmp(p, addr_buf) == 0) return name_buf; pstrcpy(name_buf,"UNKNOWN"); - if (fd == -1) + if (fd == -1) return name_buf; fstrcpy(addr_buf, p); addr = *interpret_addr2(p); - + /* Look up the remote host name. */ - if ((hp = gethostbyaddr((char *)&addr.s_addr, sizeof(addr.s_addr), AF_INET)) == 0) { + if ((hp = gethostbyaddr((char *)&addr.s_addr, + sizeof(addr.s_addr), AF_INET)) == 0) { DEBUG(1,("Gethostbyaddr failed for %s\n",p)); pstrcpy(name_buf, p); } else { @@ -1344,10 +1329,10 @@ char *get_peer_name(int fd, BOOL force_lookup) } } - /* can't pass the same source and dest strings in when you - use --enable-developer or the clobber_region() call will + /* can't pass the same source and dest strings in when you + use --enable-developer or the clobber_region() call will get you */ - + pstrcpy( tmp_name, name_buf ); alpha_strcpy(name_buf, tmp_name, "_-.", sizeof(name_buf)); if (strstr(name_buf,"..")) { @@ -1373,14 +1358,15 @@ char *get_peer_addr(int fd) if (fd == -1) { return addr_buf; } - + if (getpeername(fd, &sa, &length) < 0) { - DEBUG(0,("getpeername failed. Error was %s\n", strerror(errno) )); + DEBUG(0,("getpeername failed. Error was %s\n", + strerror(errno) )); return addr_buf; } - + fstrcpy(addr_buf,(char *)inet_ntoa(sockin->sin_addr)); - + return addr_buf; } @@ -1402,17 +1388,17 @@ int create_pipe_sock(const char *socket_dir, int sock; mode_t old_umask; pstring path; - + old_umask = umask(0); - + /* Create the socket directory or reuse the existing one */ - + if (lstat(socket_dir, &st) == -1) { if (errno == ENOENT) { /* Create directory */ if (mkdir(socket_dir, dir_perms) == -1) { DEBUG(0, ("error creating socket directory " - "%s: %s\n", socket_dir, + "%s: %s\n", socket_dir, strerror(errno))); goto out_umask; } @@ -1428,42 +1414,42 @@ int create_pipe_sock(const char *socket_dir, socket_dir)); goto out_umask; } - if ((st.st_uid != sec_initial_uid()) || + if ((st.st_uid != sec_initial_uid()) || ((st.st_mode & 0777) != dir_perms)) { DEBUG(0, ("invalid permissions on socket directory " "%s\n", socket_dir)); goto out_umask; } } - + /* Create the socket file */ - + sock = socket(AF_UNIX, SOCK_STREAM, 0); - + if (sock == -1) { perror("socket"); goto out_umask; } - + pstr_sprintf(path, "%s/%s", socket_dir, socket_name); - + unlink(path); memset(&sunaddr, 0, sizeof(sunaddr)); sunaddr.sun_family = AF_UNIX; safe_strcpy(sunaddr.sun_path, path, sizeof(sunaddr.sun_path)-1); - + if (bind(sock, (struct sockaddr *)&sunaddr, sizeof(sunaddr)) == -1) { DEBUG(0, ("bind failed on pipe socket %s: %s\n", path, strerror(errno))); goto out_close; } - + if (listen(sock, 5) == -1) { DEBUG(0, ("listen failed on pipe socket %s: %s\n", path, strerror(errno))); goto out_close; } - + umask(old_umask); return sock; |