diff options
Diffstat (limited to 'source3/auth/auth_server.c')
| -rw-r--r-- | source3/auth/auth_server.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/source3/auth/auth_server.c b/source3/auth/auth_server.c index 0e650aa6e3..919cc8d3d8 100644 --- a/source3/auth/auth_server.c +++ b/source3/auth/auth_server.c @@ -62,6 +62,15 @@ static struct cli_state *server_cryptkey(TALLOC_CTX *mem_ctx) continue; } + /* we use a mutex to prevent two connections at once - when a + Win2k PDC get two connections where one hasn't completed a + session setup yet it will send a TCP reset to the first + connection (tridge) */ + + if (!grab_server_mutex(desthost)) { + return NULL; + } + if (cli_connect(cli, desthost, &dest_ip)) { DEBUG(3,("connected to password server %s\n",desthost)); connected_ok = True; @@ -70,13 +79,19 @@ static struct cli_state *server_cryptkey(TALLOC_CTX *mem_ctx) } if (!connected_ok) { + release_server_mutex(); DEBUG(0,("password server not available\n")); cli_shutdown(cli); return NULL; } - - if (!attempt_netbios_session_request(cli, global_myname, desthost, &dest_ip)) + + if (!attempt_netbios_session_request(cli, global_myname, + desthost, &dest_ip)) { + release_server_mutex(); + DEBUG(1,("password server fails session request\n")); + cli_shutdown(cli); return NULL; + } if (strequal(desthost,myhostname())) { exit_server("Password server loop!"); @@ -86,6 +101,7 @@ static struct cli_state *server_cryptkey(TALLOC_CTX *mem_ctx) if (!cli_negprot(cli)) { DEBUG(1,("%s rejected the negprot\n",desthost)); + release_server_mutex(); cli_shutdown(cli); return NULL; } @@ -93,12 +109,29 @@ static struct cli_state *server_cryptkey(TALLOC_CTX *mem_ctx) if (cli->protocol < PROTOCOL_LANMAN2 || !(cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL)) { DEBUG(1,("%s isn't in user level security mode\n",desthost)); + release_server_mutex(); cli_shutdown(cli); return NULL; } - DEBUG(3,("password server OK\n")); + /* Get the first session setup done quickly, to avoid silly + Win2k bugs. (The next connection to the server will kill + this one... + */ + if (!cli_session_setup(cli, "", "", 0, "", 0, + "")) { + DEBUG(0,("%s rejected the initial session setup (%s)\n", + desthost, cli_errstr(cli))); + release_server_mutex(); + cli_shutdown(cli); + return NULL; + } + + release_server_mutex(); + + DEBUG(3,("password server OK\n")); + return cli; } |