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Code

Check for too many processes *before* the fork.

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Jeremy.
This commit is contained in:
Jeremy Allison 0001-01-01 00:00:00 +00:00
parent d4168c327b
commit be54b1b831
1 changed files with 36 additions and 2 deletions
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38
source/smbd/server.c
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@ -141,6 +141,40 @@ static void msg_exit_server(int msg_type, pid_t src, void *buf, size_t len)
}
/****************************************************************************
Have we reached the process limit ?
****************************************************************************/
BOOL allowable_number_of_smbd_processes(void)
{
int max_processes = lp_max_smbd_processes();
if (!max_processes)
return True;
{
TDB_CONTEXT *tdb = conn_tdb_ctx();
int32 val;
if (!tdb) {
DEBUG(0,("allowable_number_of_smbd_processes: can't open connection tdb.\n" ));
return False;
}
val = tdb_fetch_int32(tdb, "INFO/total_smbds");
if (val == -1 && (tdb_error(tdb) != TDB_ERR_NOEXIST)) {
DEBUG(0,("allowable_number_of_smbd_processes: can't fetch INFO/total_smbds. Error %s\n",
tdb_errorstr(tdb) ));
return False;
}
if (val > max_processes) {
DEBUG(0,("allowable_number_of_smbd_processes: number of processes (%d) is over allowed limit (%d)\n",
val, max_processes ));
return False;
}
}
return True;
}
/****************************************************************************
Open the socket communication.
****************************************************************************/
@ -321,7 +355,7 @@ static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_
for( ; num > 0; num--) {
struct sockaddr addr;
socklen_t in_addrlen = sizeof(addr);
s = -1;
for(i = 0; i < num_sockets; i++) {
if(FD_ISSET(fd_listenset[i],&lfds)) {
@ -347,7 +381,7 @@ static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_
if (smbd_server_fd() != -1 && interactive)
return True;
if (smbd_server_fd() != -1 && sys_fork()==0) {
if (allowable_number_of_smbd_processes() && smbd_server_fd() != -1 && sys_fork()==0) {
/* Child code ... */
/* close the listening socket(s) */