-#define OLD_NTDOMAIN 1
/*
Unix SMB/Netbios implementation.
Version 1.9.
#include "includes.h"
-extern int DEBUGLEVEL;
-
struct timeval smb_last_time;
static char *InBuffer = NULL;
extern int last_message;
extern int global_oplock_break;
-extern pstring sesssetup_user;
-extern char *last_inbuf;
-extern char *InBuffer;
-extern char *OutBuffer;
+extern userdom_struct current_user_info;
extern int smb_read_error;
-extern VOLATILE SIG_ATOMIC_T reload_after_sighup;
+extern VOLATILE sig_atomic_t reload_after_sighup;
extern BOOL global_machine_password_needs_changing;
extern fstring global_myworkgroup;
extern pstring global_myname;
if(msg->msg_buf == NULL)
{
DEBUG(0,("push_message: malloc fail (2)\n"));
- free((char *)msg);
+ SAFE_FREE(msg);
return False;
}
BOOL push_oplock_pending_smb_message(char *buf, int msg_len)
{
- return push_message(&smb_oplock_queue, buf, msg_len);
+ return push_message(&smb_oplock_queue, buf, msg_len);
+}
+
+/****************************************************************************
+do all async processing in here. This includes UDB oplock messages, kernel
+oplock messages, change notify events etc.
+****************************************************************************/
+static void async_processing(fd_set *fds, char *buffer, int buffer_len)
+{
+ /* check for oplock messages (both UDP and kernel) */
+ if (receive_local_message(fds, buffer, buffer_len, 0)) {
+ process_local_message(buffer, buffer_len);
+ }
+
+ /* check for async change notify events */
+ process_pending_change_notify_queue(0);
+
+ /* check for sighup processing */
+ if (reload_after_sighup) {
+ change_to_root_user();
+ DEBUG(1,("Reloading services after SIGHUP\n"));
+ reload_services(False);
+ reload_after_sighup = False;
+ }
}
/****************************************************************************
If a local udp message has been pushed onto the
queue (this can only happen during oplock break
- processing) return this first.
+ processing) call async_processing()
If a pending smb message has been pushed onto the
queue (this can only happen during oplock break
The timeout is in milli seconds
****************************************************************************/
-static BOOL receive_message_or_smb(char *buffer, int buffer_len,
- int timeout, BOOL *got_smb)
+static BOOL receive_message_or_smb(char *buffer, int buffer_len, int timeout)
{
- fd_set fds;
- int selrtn;
- struct timeval to;
- int maxfd;
-
- smb_read_error = 0;
-
- *got_smb = False;
-
- /*
- * Check to see if we already have a message on the smb queue.
- * If so - copy and return it.
- */
+ fd_set fds;
+ int selrtn;
+ struct timeval to;
+ int maxfd;
+
+ smb_read_error = 0;
+
+ again:
+
+ /*
+ * Note that this call must be before processing any SMB
+ * messages as we need to synchronously process any messages
+ * we may have sent to ourselves from the previous SMB.
+ */
+ message_dispatch();
+
+ /*
+ * Check to see if we already have a message on the smb queue.
+ * If so - copy and return it.
+ */
+ if(ubi_slCount(&smb_oplock_queue) != 0) {
+ pending_message_list *msg = (pending_message_list *)ubi_slRemHead(&smb_oplock_queue);
+ memcpy(buffer, msg->msg_buf, MIN(buffer_len, msg->msg_len));
- if(ubi_slCount(&smb_oplock_queue) != 0)
- {
- pending_message_list *msg = (pending_message_list *)ubi_slRemHead(&smb_oplock_queue);
- memcpy(buffer, msg->msg_buf, MIN(buffer_len, msg->msg_len));
-
- /* Free the message we just copied. */
- free((char *)msg->msg_buf);
- free((char *)msg);
- *got_smb = True;
+ /* Free the message we just copied. */
+ SAFE_FREE(msg->msg_buf);
+ SAFE_FREE(msg);
+
+ DEBUG(5,("receive_message_or_smb: returning queued smb message.\n"));
+ return True;
+ }
- DEBUG(5,("receive_message_or_smb: returning queued smb message.\n"));
- return True;
- }
- /*
- * Setup the select read fd set.
- */
+ /*
+ * Setup the select read fd set.
+ */
- FD_ZERO(&fds);
- FD_SET(smbd_server_fd(),&fds);
- maxfd = setup_oplock_select_set(&fds);
+ FD_ZERO(&fds);
+ FD_SET(smbd_server_fd(),&fds);
+ maxfd = setup_oplock_select_set(&fds);
- to.tv_sec = timeout / 1000;
- to.tv_usec = (timeout % 1000) * 1000;
+ to.tv_sec = timeout / 1000;
+ to.tv_usec = (timeout % 1000) * 1000;
- selrtn = sys_select(MAX(maxfd,smbd_server_fd())+1,&fds,timeout>0?&to:NULL);
+ selrtn = sys_select(MAX(maxfd,smbd_server_fd())+1,&fds,timeout>0?&to:NULL);
- /* Check if error */
- if(selrtn == -1) {
- /* something is wrong. Maybe the socket is dead? */
- smb_read_error = READ_ERROR;
- return False;
- }
+ /* if we get EINTR then maybe we have received an oplock
+ signal - treat this as select returning 1. This is ugly, but
+ is the best we can do until the oplock code knows more about
+ signals */
+ if (selrtn == -1 && errno == EINTR) {
+ async_processing(&fds, buffer, buffer_len);
+ /*
+ * After async processing we must go and do the select again, as
+ * the state of the flag in fds for the server file descriptor is
+ * indeterminate - we may have done I/O on it in the oplock processing. JRA.
+ */
+ goto again;
+ }
+
+ /* Check if error */
+ if (selrtn == -1) {
+ /* something is wrong. Maybe the socket is dead? */
+ smb_read_error = READ_ERROR;
+ return False;
+ }
- /* Did we timeout ? */
- if (selrtn == 0) {
- smb_read_error = READ_TIMEOUT;
- return False;
- }
+ /* Did we timeout ? */
+ if (selrtn == 0) {
+ smb_read_error = READ_TIMEOUT;
+ return False;
+ }
- if (FD_ISSET(smbd_server_fd(),&fds))
- {
- *got_smb = True;
- return receive_smb(smbd_server_fd(), buffer, 0);
- }
- else
- {
- return receive_local_message(&fds, buffer, buffer_len, 0);
- }
+ /*
+ * Ensure we process oplock break messages by preference.
+ * This is IMPORTANT ! Otherwise we can starve other processes
+ * sending us an oplock break message. JRA.
+ */
+
+ if (oplock_message_waiting(&fds)) {
+ async_processing(&fds, buffer, buffer_len);
+ /*
+ * After async processing we must go and do the select again, as
+ * the state of the flag in fds for the server file descriptor is
+ * indeterminate - we may have done I/O on it in the oplock processing. JRA.
+ */
+ goto again;
+ }
+
+ return receive_smb(smbd_server_fd(), buffer, 0);
}
/****************************************************************************
BOOL receive_next_smb(char *inbuf, int bufsize, int timeout)
{
- BOOL got_smb = False;
- BOOL ret;
-
- do
- {
- ret = receive_message_or_smb(inbuf,bufsize,timeout,&got_smb);
-
- if(ret && !got_smb)
- {
- /* Deal with oplock break requests from other smbd's. */
- process_local_message(inbuf, bufsize);
- continue;
- }
-
- if(ret && (CVAL(inbuf,0) == 0x85))
- {
- /* Keepalive packet. */
- got_smb = False;
- }
+ BOOL got_keepalive;
+ BOOL ret;
- }
- while(ret && !got_smb);
+ do {
+ ret = receive_message_or_smb(inbuf,bufsize,timeout);
+
+ got_keepalive = (ret && (CVAL(inbuf,0) == SMBkeepalive));
+ } while (ret && got_keepalive);
- return ret;
+ return ret;
}
/****************************************************************************
* Keep doing receive_local_message with a 1 ms timeout until
* we have no more messages.
*/
-
while(receive_local_message(&fds, buffer, sizeof(buffer), 1)) {
- /* Deal with oplock break requests from other smbd's. */
- process_local_message(buffer, sizeof(buffer));
+ /* Deal with oplock break requests from other smbd's. */
+ process_local_message(buffer, sizeof(buffer));
- FD_ZERO(&fds);
- (void)setup_oplock_select_set(&fds);
+ FD_ZERO(&fds);
+ (void)setup_oplock_select_set(&fds);
}
return;
*/
struct smb_message_struct
{
- int code;
char *name;
int (*fn)(connection_struct *conn, char *, char *, int, int);
int flags;
}
- smb_messages[] = {
-
- /* CORE PROTOCOL */
-
- {SMBnegprot,"SMBnegprot",reply_negprot,0},
- {SMBtcon,"SMBtcon",reply_tcon,0},
- {SMBtdis,"SMBtdis",reply_tdis,0},
- {SMBexit,"SMBexit",reply_exit,0},
- {SMBioctl,"SMBioctl",reply_ioctl,0},
- {SMBecho,"SMBecho",reply_echo,0},
- {SMBsesssetupX,"SMBsesssetupX",reply_sesssetup_and_X,0},
- {SMBtconX,"SMBtconX",reply_tcon_and_X,0},
- {SMBulogoffX, "SMBulogoffX", reply_ulogoffX, 0}, /* ulogoff doesn't give a valid TID */
- {SMBgetatr,"SMBgetatr",reply_getatr,AS_USER},
- {SMBsetatr,"SMBsetatr",reply_setatr,AS_USER | NEED_WRITE},
- {SMBchkpth,"SMBchkpth",reply_chkpth,AS_USER},
- {SMBsearch,"SMBsearch",reply_search,AS_USER},
- {SMBopen,"SMBopen",reply_open,AS_USER | QUEUE_IN_OPLOCK },
-
- /* note that SMBmknew and SMBcreate are deliberately overloaded */
- {SMBcreate,"SMBcreate",reply_mknew,AS_USER},
- {SMBmknew,"SMBmknew",reply_mknew,AS_USER},
-
- {SMBunlink,"SMBunlink",reply_unlink,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK},
- {SMBread,"SMBread",reply_read,AS_USER},
- {SMBwrite,"SMBwrite",reply_write,AS_USER | CAN_IPC },
- {SMBclose,"SMBclose",reply_close,AS_USER | CAN_IPC },
- {SMBmkdir,"SMBmkdir",reply_mkdir,AS_USER | NEED_WRITE},
- {SMBrmdir,"SMBrmdir",reply_rmdir,AS_USER | NEED_WRITE},
- {SMBdskattr,"SMBdskattr",reply_dskattr,AS_USER},
- {SMBmv,"SMBmv",reply_mv,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK},
-
- /* this is a Pathworks specific call, allowing the
- changing of the root path */
- {pSETDIR,"pSETDIR",reply_setdir,AS_USER},
-
- {SMBlseek,"SMBlseek",reply_lseek,AS_USER},
- {SMBflush,"SMBflush",reply_flush,AS_USER},
- {SMBctemp,"SMBctemp",reply_ctemp,AS_USER | QUEUE_IN_OPLOCK },
- {SMBsplopen,"SMBsplopen",reply_printopen,AS_USER | QUEUE_IN_OPLOCK },
- {SMBsplclose,"SMBsplclose",reply_printclose,AS_USER},
- {SMBsplretq,"SMBsplretq",reply_printqueue,AS_USER},
- {SMBsplwr,"SMBsplwr",reply_printwrite,AS_USER},
- {SMBlock,"SMBlock",reply_lock,AS_USER},
- {SMBunlock,"SMBunlock",reply_unlock,AS_USER},
-
- /* CORE+ PROTOCOL FOLLOWS */
-
- {SMBreadbraw,"SMBreadbraw",reply_readbraw,AS_USER},
- {SMBwritebraw,"SMBwritebraw",reply_writebraw,AS_USER},
- {SMBwriteclose,"SMBwriteclose",reply_writeclose,AS_USER},
- {SMBlockread,"SMBlockread",reply_lockread,AS_USER},
- {SMBwriteunlock,"SMBwriteunlock",reply_writeunlock,AS_USER},
-
- /* LANMAN1.0 PROTOCOL FOLLOWS */
-
- {SMBreadBmpx,"SMBreadBmpx",reply_readbmpx,AS_USER},
- {SMBreadBs,"SMBreadBs",NULL,AS_USER},
- {SMBwriteBmpx,"SMBwriteBmpx",reply_writebmpx,AS_USER},
- {SMBwriteBs,"SMBwriteBs",reply_writebs,AS_USER},
- {SMBwritec,"SMBwritec",NULL,AS_USER},
- {SMBsetattrE,"SMBsetattrE",reply_setattrE,AS_USER | NEED_WRITE },
- {SMBgetattrE,"SMBgetattrE",reply_getattrE,AS_USER },
- {SMBtrans,"SMBtrans",reply_trans,AS_USER | CAN_IPC | QUEUE_IN_OPLOCK},
- {SMBtranss,"SMBtranss",NULL,AS_USER | CAN_IPC},
- {SMBioctls,"SMBioctls",NULL,AS_USER},
- {SMBcopy,"SMBcopy",reply_copy,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK },
- {SMBmove,"SMBmove",NULL,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK },
-
- {SMBopenX,"SMBopenX",reply_open_and_X,AS_USER | CAN_IPC | QUEUE_IN_OPLOCK },
- {SMBreadX,"SMBreadX",reply_read_and_X,AS_USER | CAN_IPC },
- {SMBwriteX,"SMBwriteX",reply_write_and_X,AS_USER | CAN_IPC },
- {SMBlockingX,"SMBlockingX",reply_lockingX,AS_USER },
-
- {SMBffirst,"SMBffirst",reply_search,AS_USER},
- {SMBfunique,"SMBfunique",reply_search,AS_USER},
- {SMBfclose,"SMBfclose",reply_fclose,AS_USER},
-
- /* LANMAN2.0 PROTOCOL FOLLOWS */
- {SMBfindnclose, "SMBfindnclose", reply_findnclose, AS_USER},
- {SMBfindclose, "SMBfindclose", reply_findclose,AS_USER},
- {SMBtrans2, "SMBtrans2", reply_trans2, AS_USER | QUEUE_IN_OPLOCK | CAN_IPC },
- {SMBtranss2, "SMBtranss2", reply_transs2, AS_USER},
-
- /* NT PROTOCOL FOLLOWS */
- {SMBntcreateX, "SMBntcreateX", reply_ntcreate_and_X, AS_USER | CAN_IPC | QUEUE_IN_OPLOCK },
- {SMBnttrans, "SMBnttrans", reply_nttrans, AS_USER | CAN_IPC | QUEUE_IN_OPLOCK},
- {SMBnttranss, "SMBnttranss", reply_nttranss, AS_USER | CAN_IPC },
- {SMBntcancel, "SMBntcancel", reply_ntcancel, 0 },
-
- /* messaging routines */
- {SMBsends,"SMBsends",reply_sends,AS_GUEST},
- {SMBsendstrt,"SMBsendstrt",reply_sendstrt,AS_GUEST},
- {SMBsendend,"SMBsendend",reply_sendend,AS_GUEST},
- {SMBsendtxt,"SMBsendtxt",reply_sendtxt,AS_GUEST},
-
- /* NON-IMPLEMENTED PARTS OF THE CORE PROTOCOL */
-
- {SMBsendb,"SMBsendb",NULL,AS_GUEST},
- {SMBfwdname,"SMBfwdname",NULL,AS_GUEST},
- {SMBcancelf,"SMBcancelf",NULL,AS_GUEST},
- {SMBgetmac,"SMBgetmac",NULL,AS_GUEST}
- };
+ smb_messages[256] = {
+
+/* 0x00 */ { "SMBmkdir",reply_mkdir,AS_USER | NEED_WRITE},
+/* 0x01 */ { "SMBrmdir",reply_rmdir,AS_USER | NEED_WRITE},
+/* 0x02 */ { "SMBopen",reply_open,AS_USER | QUEUE_IN_OPLOCK },
+/* 0x03 */ { "SMBcreate",reply_mknew,AS_USER},
+/* 0x04 */ { "SMBclose",reply_close,AS_USER | CAN_IPC },
+/* 0x05 */ { "SMBflush",reply_flush,AS_USER},
+/* 0x06 */ { "SMBunlink",reply_unlink,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK},
+/* 0x07 */ { "SMBmv",reply_mv,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK},
+/* 0x08 */ { "SMBgetatr",reply_getatr,AS_USER},
+/* 0x09 */ { "SMBsetatr",reply_setatr,AS_USER | NEED_WRITE},
+/* 0x0a */ { "SMBread",reply_read,AS_USER},
+/* 0x0b */ { "SMBwrite",reply_write,AS_USER | CAN_IPC },
+/* 0x0c */ { "SMBlock",reply_lock,AS_USER},
+/* 0x0d */ { "SMBunlock",reply_unlock,AS_USER},
+/* 0x0e */ { "SMBctemp",reply_ctemp,AS_USER | QUEUE_IN_OPLOCK },
+/* 0x0f */ { "SMBmknew",reply_mknew,AS_USER},
+/* 0x10 */ { "SMBchkpth",reply_chkpth,AS_USER},
+/* 0x11 */ { "SMBexit",reply_exit,0},
+/* 0x12 */ { "SMBlseek",reply_lseek,AS_USER},
+/* 0x13 */ { "SMBlockread",reply_lockread,AS_USER},
+/* 0x14 */ { "SMBwriteunlock",reply_writeunlock,AS_USER},
+/* 0x15 */ { NULL, NULL, 0 },
+/* 0x16 */ { NULL, NULL, 0 },
+/* 0x17 */ { NULL, NULL, 0 },
+/* 0x18 */ { NULL, NULL, 0 },
+/* 0x19 */ { NULL, NULL, 0 },
+/* 0x1a */ { "SMBreadbraw",reply_readbraw,AS_USER},
+/* 0x1b */ { "SMBreadBmpx",reply_readbmpx,AS_USER},
+/* 0x1c */ { "SMBreadBs",NULL,0 },
+/* 0x1d */ { "SMBwritebraw",reply_writebraw,AS_USER},
+/* 0x1e */ { "SMBwriteBmpx",reply_writebmpx,AS_USER},
+/* 0x1f */ { "SMBwriteBs",reply_writebs,AS_USER},
+/* 0x20 */ { "SMBwritec",NULL,0},
+/* 0x21 */ { NULL, NULL, 0 },
+/* 0x22 */ { "SMBsetattrE",reply_setattrE,AS_USER | NEED_WRITE },
+/* 0x23 */ { "SMBgetattrE",reply_getattrE,AS_USER },
+/* 0x24 */ { "SMBlockingX",reply_lockingX,AS_USER },
+/* 0x25 */ { "SMBtrans",reply_trans,AS_USER | CAN_IPC | QUEUE_IN_OPLOCK},
+/* 0x26 */ { "SMBtranss",NULL,AS_USER | CAN_IPC},
+/* 0x27 */ { "SMBioctl",reply_ioctl,0},
+/* 0x28 */ { "SMBioctls",NULL,AS_USER},
+/* 0x29 */ { "SMBcopy",reply_copy,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK },
+/* 0x2a */ { "SMBmove",NULL,AS_USER | NEED_WRITE | QUEUE_IN_OPLOCK },
+/* 0x2b */ { "SMBecho",reply_echo,0},
+/* 0x2c */ { "SMBwriteclose",reply_writeclose,AS_USER},
+/* 0x2d */ { "SMBopenX",reply_open_and_X,AS_USER | CAN_IPC | QUEUE_IN_OPLOCK },
+/* 0x2e */ { "SMBreadX",reply_read_and_X,AS_USER | CAN_IPC },
+/* 0x2f */ { "SMBwriteX",reply_write_and_X,AS_USER | CAN_IPC },
+/* 0x30 */ { NULL, NULL, 0 },
+/* 0x31 */ { NULL, NULL, 0 },
+/* 0x32 */ { "SMBtrans2", reply_trans2, AS_USER | QUEUE_IN_OPLOCK | CAN_IPC },
+/* 0x33 */ { "SMBtranss2", reply_transs2, AS_USER},
+/* 0x34 */ { "SMBfindclose", reply_findclose,AS_USER},
+/* 0x35 */ { "SMBfindnclose", reply_findnclose, AS_USER},
+/* 0x36 */ { NULL, NULL, 0 },
+/* 0x37 */ { NULL, NULL, 0 },
+/* 0x38 */ { NULL, NULL, 0 },
+/* 0x39 */ { NULL, NULL, 0 },
+/* 0x3a */ { NULL, NULL, 0 },
+/* 0x3b */ { NULL, NULL, 0 },
+/* 0x3c */ { NULL, NULL, 0 },
+/* 0x3d */ { NULL, NULL, 0 },
+/* 0x3e */ { NULL, NULL, 0 },
+/* 0x3f */ { NULL, NULL, 0 },
+/* 0x40 */ { NULL, NULL, 0 },
+/* 0x41 */ { NULL, NULL, 0 },
+/* 0x42 */ { NULL, NULL, 0 },
+/* 0x43 */ { NULL, NULL, 0 },
+/* 0x44 */ { NULL, NULL, 0 },
+/* 0x45 */ { NULL, NULL, 0 },
+/* 0x46 */ { NULL, NULL, 0 },
+/* 0x47 */ { NULL, NULL, 0 },
+/* 0x48 */ { NULL, NULL, 0 },
+/* 0x49 */ { NULL, NULL, 0 },
+/* 0x4a */ { NULL, NULL, 0 },
+/* 0x4b */ { NULL, NULL, 0 },
+/* 0x4c */ { NULL, NULL, 0 },
+/* 0x4d */ { NULL, NULL, 0 },
+/* 0x4e */ { NULL, NULL, 0 },
+/* 0x4f */ { NULL, NULL, 0 },
+/* 0x50 */ { NULL, NULL, 0 },
+/* 0x51 */ { NULL, NULL, 0 },
+/* 0x52 */ { NULL, NULL, 0 },
+/* 0x53 */ { NULL, NULL, 0 },
+/* 0x54 */ { NULL, NULL, 0 },
+/* 0x55 */ { NULL, NULL, 0 },
+/* 0x56 */ { NULL, NULL, 0 },
+/* 0x57 */ { NULL, NULL, 0 },
+/* 0x58 */ { NULL, NULL, 0 },
+/* 0x59 */ { NULL, NULL, 0 },
+/* 0x5a */ { NULL, NULL, 0 },
+/* 0x5b */ { NULL, NULL, 0 },
+/* 0x5c */ { NULL, NULL, 0 },
+/* 0x5d */ { NULL, NULL, 0 },
+/* 0x5e */ { NULL, NULL, 0 },
+/* 0x5f */ { NULL, NULL, 0 },
+/* 0x60 */ { NULL, NULL, 0 },
+/* 0x61 */ { NULL, NULL, 0 },
+/* 0x62 */ { NULL, NULL, 0 },
+/* 0x63 */ { NULL, NULL, 0 },
+/* 0x64 */ { NULL, NULL, 0 },
+/* 0x65 */ { NULL, NULL, 0 },
+/* 0x66 */ { NULL, NULL, 0 },
+/* 0x67 */ { NULL, NULL, 0 },
+/* 0x68 */ { NULL, NULL, 0 },
+/* 0x69 */ { NULL, NULL, 0 },
+/* 0x6a */ { NULL, NULL, 0 },
+/* 0x6b */ { NULL, NULL, 0 },
+/* 0x6c */ { NULL, NULL, 0 },
+/* 0x6d */ { NULL, NULL, 0 },
+/* 0x6e */ { NULL, NULL, 0 },
+/* 0x6f */ { NULL, NULL, 0 },
+/* 0x70 */ { "SMBtcon",reply_tcon,0},
+/* 0x71 */ { "SMBtdis",reply_tdis,0},
+/* 0x72 */ { "SMBnegprot",reply_negprot,0},
+/* 0x73 */ { "SMBsesssetupX",reply_sesssetup_and_X,0},
+/* 0x74 */ { "SMBulogoffX", reply_ulogoffX, 0}, /* ulogoff doesn't give a valid TID */
+/* 0x75 */ { "SMBtconX",reply_tcon_and_X,0},
+/* 0x76 */ { NULL, NULL, 0 },
+/* 0x77 */ { NULL, NULL, 0 },
+/* 0x78 */ { NULL, NULL, 0 },
+/* 0x79 */ { NULL, NULL, 0 },
+/* 0x7a */ { NULL, NULL, 0 },
+/* 0x7b */ { NULL, NULL, 0 },
+/* 0x7c */ { NULL, NULL, 0 },
+/* 0x7d */ { NULL, NULL, 0 },
+/* 0x7e */ { NULL, NULL, 0 },
+/* 0x7f */ { NULL, NULL, 0 },
+/* 0x80 */ { "SMBdskattr",reply_dskattr,AS_USER},
+/* 0x81 */ { "SMBsearch",reply_search,AS_USER},
+/* 0x82 */ { "SMBffirst",reply_search,AS_USER},
+/* 0x83 */ { "SMBfunique",reply_search,AS_USER},
+/* 0x84 */ { "SMBfclose",reply_fclose,AS_USER},
+/* 0x85 */ { NULL, NULL, 0 },
+/* 0x86 */ { NULL, NULL, 0 },
+/* 0x87 */ { NULL, NULL, 0 },
+/* 0x88 */ { NULL, NULL, 0 },
+/* 0x89 */ { NULL, NULL, 0 },
+/* 0x8a */ { NULL, NULL, 0 },
+/* 0x8b */ { NULL, NULL, 0 },
+/* 0x8c */ { NULL, NULL, 0 },
+/* 0x8d */ { NULL, NULL, 0 },
+/* 0x8e */ { NULL, NULL, 0 },
+/* 0x8f */ { NULL, NULL, 0 },
+/* 0x90 */ { NULL, NULL, 0 },
+/* 0x91 */ { NULL, NULL, 0 },
+/* 0x92 */ { NULL, NULL, 0 },
+/* 0x93 */ { NULL, NULL, 0 },
+/* 0x94 */ { NULL, NULL, 0 },
+/* 0x95 */ { NULL, NULL, 0 },
+/* 0x96 */ { NULL, NULL, 0 },
+/* 0x97 */ { NULL, NULL, 0 },
+/* 0x98 */ { NULL, NULL, 0 },
+/* 0x99 */ { NULL, NULL, 0 },
+/* 0x9a */ { NULL, NULL, 0 },
+/* 0x9b */ { NULL, NULL, 0 },
+/* 0x9c */ { NULL, NULL, 0 },
+/* 0x9d */ { NULL, NULL, 0 },
+/* 0x9e */ { NULL, NULL, 0 },
+/* 0x9f */ { NULL, NULL, 0 },
+/* 0xa0 */ { "SMBnttrans", reply_nttrans, AS_USER | CAN_IPC | QUEUE_IN_OPLOCK},
+/* 0xa1 */ { "SMBnttranss", reply_nttranss, AS_USER | CAN_IPC },
+/* 0xa2 */ { "SMBntcreateX", reply_ntcreate_and_X, AS_USER | CAN_IPC | QUEUE_IN_OPLOCK },
+/* 0xa3 */ { NULL, NULL, 0 },
+/* 0xa4 */ { "SMBntcancel", reply_ntcancel, 0 },
+/* 0xa5 */ { NULL, NULL, 0 },
+/* 0xa6 */ { NULL, NULL, 0 },
+/* 0xa7 */ { NULL, NULL, 0 },
+/* 0xa8 */ { NULL, NULL, 0 },
+/* 0xa9 */ { NULL, NULL, 0 },
+/* 0xaa */ { NULL, NULL, 0 },
+/* 0xab */ { NULL, NULL, 0 },
+/* 0xac */ { NULL, NULL, 0 },
+/* 0xad */ { NULL, NULL, 0 },
+/* 0xae */ { NULL, NULL, 0 },
+/* 0xaf */ { NULL, NULL, 0 },
+/* 0xb0 */ { NULL, NULL, 0 },
+/* 0xb1 */ { NULL, NULL, 0 },
+/* 0xb2 */ { NULL, NULL, 0 },
+/* 0xb3 */ { NULL, NULL, 0 },
+/* 0xb4 */ { NULL, NULL, 0 },
+/* 0xb5 */ { NULL, NULL, 0 },
+/* 0xb6 */ { NULL, NULL, 0 },
+/* 0xb7 */ { NULL, NULL, 0 },
+/* 0xb8 */ { NULL, NULL, 0 },
+/* 0xb9 */ { NULL, NULL, 0 },
+/* 0xba */ { NULL, NULL, 0 },
+/* 0xbb */ { NULL, NULL, 0 },
+/* 0xbc */ { NULL, NULL, 0 },
+/* 0xbd */ { NULL, NULL, 0 },
+/* 0xbe */ { NULL, NULL, 0 },
+/* 0xbf */ { NULL, NULL, 0 },
+/* 0xc0 */ { "SMBsplopen",reply_printopen,AS_USER | QUEUE_IN_OPLOCK },
+/* 0xc1 */ { "SMBsplwr",reply_printwrite,AS_USER},
+/* 0xc2 */ { "SMBsplclose",reply_printclose,AS_USER},
+/* 0xc3 */ { "SMBsplretq",reply_printqueue,AS_USER},
+/* 0xc4 */ { NULL, NULL, 0 },
+/* 0xc5 */ { NULL, NULL, 0 },
+/* 0xc6 */ { NULL, NULL, 0 },
+/* 0xc7 */ { NULL, NULL, 0 },
+/* 0xc8 */ { NULL, NULL, 0 },
+/* 0xc9 */ { NULL, NULL, 0 },
+/* 0xca */ { NULL, NULL, 0 },
+/* 0xcb */ { NULL, NULL, 0 },
+/* 0xcc */ { NULL, NULL, 0 },
+/* 0xcd */ { NULL, NULL, 0 },
+/* 0xce */ { NULL, NULL, 0 },
+/* 0xcf */ { NULL, NULL, 0 },
+/* 0xd0 */ { "SMBsends",reply_sends,AS_GUEST},
+/* 0xd1 */ { "SMBsendb",NULL,AS_GUEST},
+/* 0xd2 */ { "SMBfwdname",NULL,AS_GUEST},
+/* 0xd3 */ { "SMBcancelf",NULL,AS_GUEST},
+/* 0xd4 */ { "SMBgetmac",NULL,AS_GUEST},
+/* 0xd5 */ { "SMBsendstrt",reply_sendstrt,AS_GUEST},
+/* 0xd6 */ { "SMBsendend",reply_sendend,AS_GUEST},
+/* 0xd7 */ { "SMBsendtxt",reply_sendtxt,AS_GUEST},
+/* 0xd8 */ { NULL, NULL, 0 },
+/* 0xd9 */ { NULL, NULL, 0 },
+/* 0xda */ { NULL, NULL, 0 },
+/* 0xdb */ { NULL, NULL, 0 },
+/* 0xdc */ { NULL, NULL, 0 },
+/* 0xdd */ { NULL, NULL, 0 },
+/* 0xde */ { NULL, NULL, 0 },
+/* 0xdf */ { NULL, NULL, 0 },
+/* 0xe0 */ { NULL, NULL, 0 },
+/* 0xe1 */ { NULL, NULL, 0 },
+/* 0xe2 */ { NULL, NULL, 0 },
+/* 0xe3 */ { NULL, NULL, 0 },
+/* 0xe4 */ { NULL, NULL, 0 },
+/* 0xe5 */ { NULL, NULL, 0 },
+/* 0xe6 */ { NULL, NULL, 0 },
+/* 0xe7 */ { NULL, NULL, 0 },
+/* 0xe8 */ { NULL, NULL, 0 },
+/* 0xe9 */ { NULL, NULL, 0 },
+/* 0xea */ { NULL, NULL, 0 },
+/* 0xeb */ { NULL, NULL, 0 },
+/* 0xec */ { NULL, NULL, 0 },
+/* 0xed */ { NULL, NULL, 0 },
+/* 0xee */ { NULL, NULL, 0 },
+/* 0xef */ { NULL, NULL, 0 },
+/* 0xf0 */ { NULL, NULL, 0 },
+/* 0xf1 */ { NULL, NULL, 0 },
+/* 0xf2 */ { NULL, NULL, 0 },
+/* 0xf3 */ { NULL, NULL, 0 },
+/* 0xf4 */ { NULL, NULL, 0 },
+/* 0xf5 */ { NULL, NULL, 0 },
+/* 0xf6 */ { NULL, NULL, 0 },
+/* 0xf7 */ { NULL, NULL, 0 },
+/* 0xf8 */ { NULL, NULL, 0 },
+/* 0xf9 */ { NULL, NULL, 0 },
+/* 0xfa */ { NULL, NULL, 0 },
+/* 0xfb */ { NULL, NULL, 0 },
+/* 0xfc */ { NULL, NULL, 0 },
+/* 0xfd */ { NULL, NULL, 0 },
+/* 0xfe */ { NULL, NULL, 0 },
+/* 0xff */ { NULL, NULL, 0 }
+
+};
/*******************************************************************
dump a prs to a file
if (len < 4) len = smb_len(data)+4;
for (i=1;i<100;i++) {
- slprintf(fname,sizeof(fname), "/tmp/%s.%d.%s", name, i,
+ slprintf(fname,sizeof(fname)-1, "/tmp/%s.%d.%s", name, i,
type ? "req" : "resp");
fd = open(fname, O_WRONLY|O_CREAT|O_EXCL, 0644);
if (fd != -1 || errno != EEXIST) break;
{
static pid_t pid= (pid_t)-1;
int outsize = 0;
- static int num_smb_messages =
- sizeof(smb_messages) / sizeof(struct smb_message_struct);
- int match;
- extern int global_smbpid;
+ extern uint16 global_smbpid;
+
+ type &= 0xff;
if (pid == (pid_t)-1)
pid = sys_getpid();
return(-1);
}
- for (match=0;match<num_smb_messages;match++)
- if (smb_messages[match].code == type)
- break;
-
/* yuck! this is an interim measure before we get rid of our
current inbuf/outbuf system */
global_smbpid = SVAL(inbuf,smb_pid);
- if (match == num_smb_messages)
+ if (smb_messages[type].fn == NULL)
{
DEBUG(0,("Unknown message type %d!\n",type));
smb_dump("Unknown", 1, inbuf, size);
}
else
{
- DEBUG(3,("switch message %s (pid %d)\n",smb_messages[match].name,(int)pid));
+ int flags = smb_messages[type].flags;
+ static uint16 last_session_tag = UID_FIELD_INVALID;
+ /* In share mode security we must ignore the vuid. */
+ uint16 session_tag = (lp_security() == SEC_SHARE) ? UID_FIELD_INVALID : SVAL(inbuf,smb_uid);
+ connection_struct *conn = conn_find(SVAL(inbuf,smb_tid));
- smb_dump(smb_messages[match].name, 1, inbuf, size);
+ DEBUG(3,("switch message %s (pid %d)\n",smb_fn_name(type),(int)pid));
+
+ smb_dump(smb_fn_name(type), 1, inbuf, size);
if(global_oplock_break)
{
- int flags = smb_messages[match].flags;
-
if(flags & QUEUE_IN_OPLOCK)
{
/*
return -1;
}
}
- if (smb_messages[match].fn)
- {
- int flags = smb_messages[match].flags;
- static uint16 last_session_tag = UID_FIELD_INVALID;
- /* In share mode security we must ignore the vuid. */
- uint16 session_tag = (lp_security() == SEC_SHARE) ? UID_FIELD_INVALID : SVAL(inbuf,smb_uid);
- connection_struct *conn = conn_find(SVAL(inbuf,smb_tid));
-
-
- /* Ensure this value is replaced in the incoming packet. */
- SSVAL(inbuf,smb_uid,session_tag);
-
- /*
- * Ensure the correct username is in sesssetup_user.
- * This is a really ugly bugfix for problems with
- * multiple session_setup_and_X's being done and
- * allowing %U and %G substitutions to work correctly.
- * There is a reason this code is done here, don't
- * move it unless you know what you're doing... :-).
- * JRA.
- */
- if (session_tag != last_session_tag) {
- user_struct *vuser = NULL;
-
- last_session_tag = session_tag;
- if(session_tag != UID_FIELD_INVALID)
- vuser = get_valid_user_struct(session_tag);
- if(vuser != NULL)
- pstrcpy( sesssetup_user, vuser->user.smb_name);
- }
- /* does this protocol need to be run as root? */
- if (!(flags & AS_USER))
- unbecome_user();
+ /* Ensure this value is replaced in the incoming packet. */
+ SSVAL(inbuf,smb_uid,session_tag);
- /* does this protocol need to be run as the connected user? */
- if ((flags & AS_USER) && !become_user(conn,session_tag)) {
- if (flags & AS_GUEST)
- flags &= ~AS_USER;
- else
- return(ERROR(ERRSRV,ERRaccess));
- }
- /* this code is to work around a bug is MS client 3 without
- introducing a security hole - it needs to be able to do
- print queue checks as guest if it isn't logged in properly */
- if (flags & AS_USER)
- flags &= ~AS_GUEST;
-
- /* does it need write permission? */
- if ((flags & NEED_WRITE) && !CAN_WRITE(conn))
- return(ERROR(ERRSRV,ERRaccess));
-
- /* ipc services are limited */
- if (IS_IPC(conn) && (flags & AS_USER) && !(flags & CAN_IPC)) {
- return(ERROR(ERRSRV,ERRaccess));
- }
+ /*
+ * Ensure the correct username is in current_user_info.
+ * This is a really ugly bugfix for problems with
+ * multiple session_setup_and_X's being done and
+ * allowing %U and %G substitutions to work correctly.
+ * There is a reason this code is done here, don't
+ * move it unless you know what you're doing... :-).
+ * JRA.
+ */
- /* load service specific parameters */
- if (conn &&
- !become_service(conn,(flags & AS_USER)?True:False)) {
- return(ERROR(ERRSRV,ERRaccess));
- }
+ if (session_tag != last_session_tag) {
+ user_struct *vuser = NULL;
- /* does this protocol need to be run as guest? */
- if ((flags & AS_GUEST) &&
- (!become_guest() ||
- !check_access(smbd_server_fd(), lp_hostsallow(-1), lp_hostsdeny(-1)))) {
- return(ERROR(ERRSRV,ERRaccess));
- }
+ last_session_tag = session_tag;
+ if(session_tag != UID_FIELD_INVALID)
+ vuser = get_valid_user_struct(session_tag);
+ if(vuser != NULL)
+ current_user_info = vuser->user;
+ }
- last_inbuf = inbuf;
+ /* does this protocol need to be run as root? */
+ if (!(flags & AS_USER))
+ change_to_root_user();
- outsize = smb_messages[match].fn(conn, inbuf,outbuf,size,bufsize);
+ /* does this protocol need a valid tree connection? */
+ if ((flags & AS_USER) && !conn) {
+ return ERROR_DOS(ERRSRV, ERRinvnid);
}
- else
- {
- outsize = reply_unknown(inbuf,outbuf);
+
+
+ /* does this protocol need to be run as the connected user? */
+ if ((flags & AS_USER) && !change_to_user(conn,session_tag)) {
+ if (flags & AS_GUEST)
+ flags &= ~AS_USER;
+ else
+ return(ERROR_DOS(ERRSRV,ERRaccess));
+ }
+
+ /* this code is to work around a bug is MS client 3 without
+ introducing a security hole - it needs to be able to do
+ print queue checks as guest if it isn't logged in properly */
+ if (flags & AS_USER)
+ flags &= ~AS_GUEST;
+
+ /* does it need write permission? */
+ if ((flags & NEED_WRITE) && !CAN_WRITE(conn))
+ return(ERROR_DOS(ERRSRV,ERRaccess));
+
+ /* ipc services are limited */
+ if (IS_IPC(conn) && (flags & AS_USER) && !(flags & CAN_IPC)) {
+ return(ERROR_DOS(ERRSRV,ERRaccess));
+ }
+
+ /* load service specific parameters */
+ if (conn && !set_current_service(conn,(flags & AS_USER)?True:False)) {
+ return(ERROR_DOS(ERRSRV,ERRaccess));
+ }
+
+ /* does this protocol need to be run as guest? */
+ if ((flags & AS_GUEST) &&
+ (!change_to_guest() ||
+ !check_access(smbd_server_fd(), lp_hostsallow(-1), lp_hostsdeny(-1)))) {
+ return(ERROR_DOS(ERRSRV,ERRaccess));
}
+
+ last_inbuf = inbuf;
+
+ outsize = smb_messages[type].fn(conn, inbuf,outbuf,size,bufsize);
}
- smb_dump(smb_messages[match].name, 0, outbuf, outsize);
+ smb_dump(smb_fn_name(type), 0, outbuf, outsize);
return(outsize);
}
return(outsize);
}
+/****************************************************************************
+ Keep track of the number of running smbd's. This functionality is used to
+ 'hard' limit Samba overhead on resource constrained systems.
+****************************************************************************/
+static BOOL smbd_process_limit(void)
+{
+ int total_smbds;
+
+ if (lp_max_smbd_processes()) {
+
+ /* Always add one to the smbd process count, as exit_server() always
+ * subtracts one.
+ */
+
+ total_smbds = 1; /* In case we need to create the entry. */
+
+ if (!conn_tdb_ctx()) {
+ DEBUG(0,("smbd_process_limit: max smbd processes parameter set with status parameter not \
+set. Ignoring max smbd restriction.\n"));
+ return False;
+ }
+
+ if (tdb_change_int_atomic(conn_tdb_ctx(), "INFO/total_smbds", &total_smbds, 1) == -1)
+ return True;
+
+ return total_smbds > lp_max_smbd_processes();
+ }
+ else
+ return False;
+}
/****************************************************************************
process an smb from the client - split out from the process() code so
int32 len = smb_len(inbuf);
int nread = len + 4;
-#ifdef WITH_PROFILE
- profile_p->smb_count++;
-#endif
+ DO_PROFILE_INC(smb_count);
if (trans_num == 0) {
/* on the first packet, check the global hosts allow/ hosts
deny parameters before doing any parsing of the packet
passed to us by the client. This prevents attacks on our
parsing code from hosts not in the hosts allow list */
- if (!check_access(smbd_server_fd(), lp_hostsallow(-1), lp_hostsdeny(-1))) {
- /* send a negative session response "not listining on calling
+ if (smbd_process_limit() ||
+ !check_access(smbd_server_fd(), lp_hostsallow(-1), lp_hostsdeny(-1))) {
+ /* send a negative session response "not listening on calling
name" */
static unsigned char buf[5] = {0x83, 0, 0, 1, 0x81};
DEBUG( 1, ( "Connection denied from %s\n",
client_addr() ) );
- send_smb(smbd_server_fd(),(char *)buf);
+ (void)send_smb(smbd_server_fd(),(char *)buf);
exit_server("connection denied");
}
}
if (msg_type == 0)
show_msg(inbuf);
- else if(msg_type == 0x85)
+ else if(msg_type == SMBkeepalive)
return; /* Keepalive packet. */
nread = construct_reply(inbuf,outbuf,nread,max_send);
nread, smb_len(outbuf)));
}
else
- send_smb(smbd_server_fd(),outbuf);
+ if (!send_smb(smbd_server_fd(),outbuf))
+ exit_server("process_smb: send_smb failed.");
}
trans_num++;
}
char *smb_fn_name(int type)
{
static char *unknown_name = "SMBunknown";
- static int num_smb_messages =
- sizeof(smb_messages) / sizeof(struct smb_message_struct);
- int match;
- for (match=0;match<num_smb_messages;match++)
- if (smb_messages[match].code == type)
- break;
-
- if (match == num_smb_messages)
+ if (smb_messages[type].name == NULL)
return(unknown_name);
- return(smb_messages[match].name);
+ return(smb_messages[type].name);
}
void construct_reply_common(char *inbuf,char *outbuf)
{
- memset(outbuf,'\0',smb_size);
-
- set_message(outbuf,0,0,True);
- CVAL(outbuf,smb_com) = CVAL(inbuf,smb_com);
-
- memcpy(outbuf+4,inbuf+4,4);
- CVAL(outbuf,smb_rcls) = SMB_SUCCESS;
- CVAL(outbuf,smb_reh) = 0;
- SCVAL(outbuf,smb_flg, FLAG_REPLY | (CVAL(inbuf,smb_flg) & FLAG_CASELESS_PATHNAMES)); /* bit 7 set
- means a reply */
- SSVAL(outbuf,smb_flg2,FLAGS2_LONG_PATH_COMPONENTS);
- /* say we support long filenames */
-
- SSVAL(outbuf,smb_err,SMB_SUCCESS);
- SSVAL(outbuf,smb_tid,SVAL(inbuf,smb_tid));
- SSVAL(outbuf,smb_pid,SVAL(inbuf,smb_pid));
- SSVAL(outbuf,smb_uid,SVAL(inbuf,smb_uid));
- SSVAL(outbuf,smb_mid,SVAL(inbuf,smb_mid));
+ memset(outbuf,'\0',smb_size);
+
+ set_message(outbuf,0,0,True);
+ CVAL(outbuf,smb_com) = CVAL(inbuf,smb_com);
+
+ memcpy(outbuf+4,inbuf+4,4);
+ CVAL(outbuf,smb_rcls) = SMB_SUCCESS;
+ CVAL(outbuf,smb_reh) = 0;
+ SCVAL(outbuf,smb_flg, FLAG_REPLY | (CVAL(inbuf,smb_flg) & FLAG_CASELESS_PATHNAMES));
+ SSVAL(outbuf,smb_flg2,
+ FLAGS2_UNICODE_STRINGS | FLAGS2_LONG_PATH_COMPONENTS |
+ FLAGS2_32_BIT_ERROR_CODES | FLAGS2_EXTENDED_SECURITY);
+
+ SSVAL(outbuf,smb_err,SMB_SUCCESS);
+ SSVAL(outbuf,smb_tid,SVAL(inbuf,smb_tid));
+ SSVAL(outbuf,smb_pid,SVAL(inbuf,smb_pid));
+ SSVAL(outbuf,smb_uid,SVAL(inbuf,smb_uid));
+ SSVAL(outbuf,smb_mid,SVAL(inbuf,smb_mid));
}
/****************************************************************************
static int setup_select_timeout(void)
{
- int change_notify_timeout = lp_change_notify_timeout() * 1000;
- int select_timeout;
+ int select_timeout;
+ int t;
- /*
- * Increase the select timeout back to SMBD_SELECT_TIMEOUT if we
- * have removed any blocking locks. JRA.
- */
+ /*
+ * Increase the select timeout back to SMBD_SELECT_TIMEOUT if we
+ * have removed any blocking locks. JRA.
+ */
- select_timeout = blocking_locks_pending() ? SMBD_SELECT_TIMEOUT_WITH_PENDING_LOCKS*1000 :
- SMBD_SELECT_TIMEOUT*1000;
+ select_timeout = blocking_locks_pending() ? SMBD_SELECT_TIMEOUT_WITH_PENDING_LOCKS*1000 :
+ SMBD_SELECT_TIMEOUT*1000;
- if (change_notifies_pending())
- select_timeout = MIN(select_timeout, change_notify_timeout);
+ t = change_notify_timeout();
+ if (t != -1) select_timeout = MIN(select_timeout, t*1000);
- return select_timeout;
+ return select_timeout;
}
/****************************************************************************
last_idle_closed_check = t;
/* become root again if waiting */
- unbecome_user();
+ change_to_root_user();
/* check if we need to reload services */
check_reload(t);
/* also send a keepalive to the password server if its still
connected */
if (cli && cli->initialised)
- send_keepalive(cli->fd);
+ if (!send_keepalive(cli->fd)) {
+ DEBUG( 2, ( "password server keepalive failed.\n"));
+ cli_shutdown(cli);
+ }
last_keepalive_sent_time = t;
}
* First, open the machine password file with an exclusive lock.
*/
- if(!get_trust_account_password(global_myworkgroup, trust_passwd_hash, &lct)) {
+ if(!secrets_fetch_trust_account_password(global_myworkgroup, trust_passwd_hash, &lct)) {
DEBUG(0,("process: unable to read the machine account password for \
machine %s in domain %s.\n", global_myname, global_myworkgroup ));
return True;
/*
* Now we are root, check if the log files need pruning.
+ * Force a log file check.
*/
- if(need_to_check_log_size())
- check_log_size();
+ force_check_log_size();
+ check_log_size();
/*
* Modify the select timeout depending upon
void smbd_process(void)
{
- extern int smb_echo_count;
- time_t last_timeout_processing_time = time(NULL);
- unsigned int num_smbs = 0;
-
- InBuffer = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
- OutBuffer = (char *)malloc(BUFFER_SIZE + SAFETY_MARGIN);
- if ((InBuffer == NULL) || (OutBuffer == NULL))
- return;
-
- InBuffer += SMB_ALIGNMENT;
- OutBuffer += SMB_ALIGNMENT;
-
- max_recv = MIN(lp_maxxmit(),BUFFER_SIZE);
-
- /* re-initialise the timezone */
- TimeInit();
-
- while (True)
- {
- int deadtime = lp_deadtime()*60;
- BOOL got_smb = False;
- int select_timeout = setup_select_timeout();
-
- if (deadtime <= 0)
- deadtime = DEFAULT_SMBD_TIMEOUT;
-
- errno = 0;
-
- /* free up temporary memory */
- lp_talloc_free();
-
- /*
- * If reload_after_sighup == True then we got a SIGHUP
- * and are being asked to reload. Fix from <branko.cibej@hermes.si>
- */
- if (reload_after_sighup) {
- /* become root */
- unbecome_user();
- DEBUG(1,("Reloading services after SIGHUP\n"));
- reload_services(False);
- reload_after_sighup = False;
- }
-
- while(!receive_message_or_smb(InBuffer,BUFFER_SIZE,select_timeout,&got_smb))
- {
- if(!timeout_processing( deadtime, &select_timeout, &last_timeout_processing_time))
- return;
- num_smbs = 0; /* Reset smb counter. */
- }
-
- if(got_smb) {
- /*
- * Ensure we do timeout processing if the SMB we just got was
- * only an echo request. This allows us to set the select
- * timeout in 'receive_message_or_smb()' to any value we like
- * without worrying that the client will send echo requests
- * faster than the select timeout, thus starving out the
- * essential processing (change notify, blocking locks) that
- * the timeout code does. JRA.
- */
- int num_echos = smb_echo_count;
-
- process_smb(InBuffer, OutBuffer);
-
- if(smb_echo_count != num_echos) {
- if(!timeout_processing( deadtime, &select_timeout, &last_timeout_processing_time))
- return;
- num_smbs = 0; /* Reset smb counter. */
- }
-
- num_smbs++;
-
- /*
- * If we are getting smb requests in a constant stream
- * with no echos, make sure we attempt timeout processing
- * every select_timeout milliseconds - but only check for this
- * every 200 smb requests.
- */
-
- if((num_smbs % 200) == 0) {
- time_t new_check_time = time(NULL);
- if(last_timeout_processing_time - new_check_time >= (select_timeout/1000)) {
- if(!timeout_processing( deadtime, &select_timeout, &last_timeout_processing_time))
- return;
- num_smbs = 0; /* Reset smb counter. */
- last_timeout_processing_time = new_check_time; /* Reset time. */
- }
- }
- }
- else
- process_local_message(InBuffer, BUFFER_SIZE);
- }
+ extern int smb_echo_count;
+ time_t last_timeout_processing_time = time(NULL);
+ unsigned int num_smbs = 0;
+
+ InBuffer = (char *)malloc(BUFFER_SIZE + LARGE_WRITEX_HDR_SIZE + SAFETY_MARGIN);
+ OutBuffer = (char *)malloc(BUFFER_SIZE + LARGE_WRITEX_HDR_SIZE + SAFETY_MARGIN);
+ if ((InBuffer == NULL) || (OutBuffer == NULL))
+ return;
+
+ max_recv = MIN(lp_maxxmit(),BUFFER_SIZE);
+
+ /* re-initialise the timezone */
+ TimeInit();
+
+ /* register our message handlers */
+ message_register(MSG_SMB_FORCE_TDIS, msg_force_tdis);
+
+ while (True) {
+ int deadtime = lp_deadtime()*60;
+ int select_timeout = setup_select_timeout();
+ int num_echos;
+
+ if (deadtime <= 0)
+ deadtime = DEFAULT_SMBD_TIMEOUT;
+
+ errno = 0;
+
+ /* free up temporary memory */
+ lp_talloc_free();
+ main_loop_talloc_free();
+
+ while (!receive_message_or_smb(InBuffer,BUFFER_SIZE+LARGE_WRITEX_HDR_SIZE,select_timeout)) {
+ if(!timeout_processing( deadtime, &select_timeout, &last_timeout_processing_time))
+ return;
+ num_smbs = 0; /* Reset smb counter. */
+ }
+
+ /*
+ * Ensure we do timeout processing if the SMB we just got was
+ * only an echo request. This allows us to set the select
+ * timeout in 'receive_message_or_smb()' to any value we like
+ * without worrying that the client will send echo requests
+ * faster than the select timeout, thus starving out the
+ * essential processing (change notify, blocking locks) that
+ * the timeout code does. JRA.
+ */
+ num_echos = smb_echo_count;
+
+ process_smb(InBuffer, OutBuffer);
+
+ if (smb_echo_count != num_echos) {
+ if(!timeout_processing( deadtime, &select_timeout, &last_timeout_processing_time))
+ return;
+ num_smbs = 0; /* Reset smb counter. */
+ }
+
+ num_smbs++;
+
+ /*
+ * If we are getting smb requests in a constant stream
+ * with no echos, make sure we attempt timeout processing
+ * every select_timeout milliseconds - but only check for this
+ * every 200 smb requests.
+ */
+
+ if ((num_smbs % 200) == 0) {
+ time_t new_check_time = time(NULL);
+ if(new_check_time - last_timeout_processing_time >= (select_timeout/1000)) {
+ if(!timeout_processing( deadtime, &select_timeout, &last_timeout_processing_time))
+ return;
+ num_smbs = 0; /* Reset smb counter. */
+ last_timeout_processing_time = new_check_time; /* Reset time. */
+ }
+ }
+ }
}
-
-#undef OLD_NTDOMAIN
git.samba.org / nivanova / samba-autobuild / .git / blobdiff