diff options
Diffstat (limited to 'source3/rpc_server/srv_pipe.c')
| -rw-r--r-- | source3/rpc_server/srv_pipe.c | 238 |
1 files changed, 198 insertions, 40 deletions
diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c index 8aaab43461..f99bd75974 100644 --- a/source3/rpc_server/srv_pipe.c +++ b/source3/rpc_server/srv_pipe.c @@ -3,8 +3,9 @@ * RPC Pipe client / server routines * Copyright (C) Andrew Tridgell 1992-1998 * Copyright (C) Luke Kenneth Casson Leighton 1996-1998, - * Copyright (C) Paul Ashton 1997-1998. - * Copyright (C) Jeremy Allison 1999. + * Copyright (C) Paul Ashton 1997-1998, + * Copyright (C) Jeremy Allison 1999, + * Copyright (C) Anthony Liguori 2003. * * 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 @@ -457,24 +458,53 @@ failed authentication on named pipe %s.\n", domain, user_name, wks, p->name )); struct api_cmd { - const char * pipe_clnt_name; - const char * pipe_srv_name; - BOOL (*fn) (pipes_struct *); + const char *name; + int (*init)(void); }; static struct api_cmd api_fd_commands[] = { - { "lsarpc", "lsass", api_ntlsa_rpc }, - { "samr", "lsass", api_samr_rpc }, - { "srvsvc", "ntsvcs", api_srvsvc_rpc }, - { "wkssvc", "ntsvcs", api_wkssvc_rpc }, - { "NETLOGON", "lsass", api_netlog_rpc }, - { "winreg", "winreg", api_reg_rpc }, - { "spoolss", "spoolss", api_spoolss_rpc }, - { "netdfs", "netdfs" , api_netdfs_rpc }, - { NULL, NULL, NULL } +#ifndef RPC_LSA_DYNAMIC + { "lsarpc", rpc_lsa_init }, +#endif +#ifndef RPC_SAMR_DYNAMIC + { "samr", rpc_samr_init }, +#endif +#ifndef RPC_SVC_DYNAMIC + { "srvsvc", rpc_srv_init }, +#endif +#ifndef RPC_WKS_DYNAMIC + { "wkssvc", rpc_wks_init }, +#endif +#ifndef RPC_NETLOG_DYNAMIC + { "NETLOGON", rpc_net_init }, +#endif +#ifndef RPC_REG_DYNAMIC + { "winreg", rpc_reg_init }, +#endif +#ifndef RPC_SPOOLSS_DYNAMIC + { "spoolss", rpc_spoolss_init }, +#endif +#ifndef RPC_DFS_DYNAMIC + { "netdfs", rpc_dfs_init }, +#endif + { NULL, NULL } }; +struct rpc_table +{ + struct + { + const char *clnt; + const char *srv; + } pipe; + struct api_struct *cmds; + int n_cmds; +}; + +static struct rpc_table *rpc_lookup; +static int rpc_lookup_size; + /******************************************************************* This is the client reply to our challenge for an authenticated bind request. The challenge we sent is in p->challenge. @@ -681,6 +711,7 @@ BOOL check_bind_req(char* pipe_name, RPC_IFACE* abstract, fstrcpy(pname,"\\PIPE\\"); fstrcat(pname,pipe_name); + DEBUG(3,("check_bind_req for %s\n", pname)); #ifndef SUPPORT_NEW_LSARPC_UUID @@ -728,6 +759,82 @@ BOOL check_bind_req(char* pipe_name, RPC_IFACE* abstract, } /******************************************************************* + Register commands to an RPC pipe +*******************************************************************/ +int rpc_pipe_register_commands(const char *clnt, const char *srv, const struct api_struct *cmds, int size) +{ + struct rpc_table *rpc_entry; + + + /* We use a temporary variable because this call can fail and + rpc_lookup will still be valid afterwards. It could then succeed if + called again later */ + rpc_entry = realloc(rpc_lookup, + ++rpc_lookup_size*sizeof(struct rpc_table)); + if (NULL == rpc_entry) { + rpc_lookup_size--; + DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n")); + return 0; + } else { + rpc_lookup = rpc_entry; + } + + rpc_entry = rpc_lookup + (rpc_lookup_size - 1); + ZERO_STRUCTP(rpc_entry); + rpc_entry->pipe.clnt = strdup(clnt); + rpc_entry->pipe.srv = strdup(srv); + rpc_entry->cmds = realloc(rpc_entry->cmds, + (rpc_entry->n_cmds + size) * + sizeof(struct api_struct)); + memcpy(rpc_entry->cmds + rpc_entry->n_cmds, cmds, + size * sizeof(struct api_struct)); + rpc_entry->n_cmds += size; + + return size; +} + +/******************************************************************* + Register commands to an RPC pipe +*******************************************************************/ +int rpc_load_module(const char *module) +{ +#ifdef HAVE_DLOPEN + void *handle; + int (*module_init)(void); + pstring full_path; + char *error; + + pstrcpy(full_path, lib_path("rpc")); + pstrcat(full_path, "/librpc_"); + pstrcat(full_path, module); + pstrcat(full_path, "."); + pstrcat(full_path, shlib_ext()); + + handle = sys_dlopen(full_path, RTLD_LAZY); + if (!handle) { + DEBUG(0, ("Could not load requested pipe %s as %s\n", + module, full_path)); + DEBUG(0, (" Error: %s\n", dlerror())); + return 0; + } + + DEBUG(3, ("Module '%s' loaded\n", full_path)); + + module_init = sys_dlsym(handle, "rpc_pipe_init"); + if ((error = sys_dlerror()) != NULL) { + DEBUG(0, ("Error trying to resolve symbol 'rpc_pipe_init' in %s: %s\n", + full_path, error)); + return 0; + } + + return module_init(); +#else + DEBUG(0,("Attempting to load a dynamic RPC pipe when dlopen isn't available\n")); + return 0; +#endif +} + +/******************************************************************* Respond to a pipe bind request. *******************************************************************/ @@ -754,23 +861,40 @@ BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p) * that this is a pipe name we support. */ - for (i = 0; api_fd_commands[i].pipe_clnt_name; i++) { - if (strequal(api_fd_commands[i].pipe_clnt_name, p->name) && - api_fd_commands[i].fn != NULL) { - DEBUG(3,("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n", - api_fd_commands[i].pipe_clnt_name, - api_fd_commands[i].pipe_srv_name)); - fstrcpy(p->pipe_srv_name, api_fd_commands[i].pipe_srv_name); - break; - } + + for (i = 0; i < rpc_lookup_size; i++) { + if (strequal(rpc_lookup[i].pipe.clnt, p->name)) { + DEBUG(0, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n", + rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv)); + fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv); + break; + } } - if (api_fd_commands[i].fn == NULL) { - DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n", - p->name )); - if(!setup_bind_nak(p)) - return False; - return True; + if (i == rpc_lookup_size) { + for (i = 0; api_fd_commands[i].name; i++) { + if (strequal(api_fd_commands[i].name, p->name)) { + api_fd_commands[i].init(); + break; + } + } + + if (!api_fd_commands[i].name && !rpc_load_module(p->name)) { + DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n", + p->name )); + if(!setup_bind_nak(p)) + return False; + return True; + } + + for (i = 0; i < rpc_lookup_size; i++) { + if (strequal(rpc_lookup[i].pipe.clnt, p->name)) { + DEBUG(0, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n", + rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv)); + fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv); + break; + } + } } /* decode the bind request */ @@ -1153,14 +1277,46 @@ BOOL api_pipe_request(pipes_struct *p) } } - for (i = 0; api_fd_commands[i].pipe_clnt_name; i++) { - if (strequal(api_fd_commands[i].pipe_clnt_name, p->name) && - api_fd_commands[i].fn != NULL) { - DEBUG(3,("Doing \\PIPE\\%s\n", api_fd_commands[i].pipe_clnt_name)); - set_current_rpc_talloc(p->mem_ctx); - ret = api_fd_commands[i].fn(p); - set_current_rpc_talloc(NULL); - } + DEBUG(5, ("Requested \\PIPE\\%s\n", p->name)); + + for (i = 0; i < rpc_lookup_size; i++) { + if (strequal(rpc_lookup[i].pipe.clnt, p->name)) { + DEBUG(3,("Doing \\PIPE\\%s\n", + rpc_lookup[i].pipe.clnt)); + set_current_rpc_talloc(p->mem_ctx); + ret = api_rpcTNP(p, rpc_lookup[i].pipe.clnt, + rpc_lookup[i].cmds, + rpc_lookup[i].n_cmds); + set_current_rpc_talloc(NULL); + break; + } + } + + + if (i == rpc_lookup_size) { + for (i = 0; api_fd_commands[i].name; i++) { + if (strequal(api_fd_commands[i].name, p->name)) { + api_fd_commands[i].init(); + break; + } + } + + if (!api_fd_commands[i].name) { + rpc_load_module(p->name); + } + + for (i = 0; i < rpc_lookup_size; i++) { + if (strequal(rpc_lookup[i].pipe.clnt, p->name)) { + DEBUG(3,("Doing \\PIPE\\%s\n", + rpc_lookup[i].pipe.clnt)); + set_current_rpc_talloc(p->mem_ctx); + ret = api_rpcTNP(p, rpc_lookup[i].pipe.clnt, + rpc_lookup[i].cmds, + rpc_lookup[i].n_cmds); + set_current_rpc_talloc(NULL); + break; + } + } } if(p->ntlmssp_auth_validated) @@ -1174,7 +1330,7 @@ BOOL api_pipe_request(pipes_struct *p) ********************************************************************/ BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name, - const struct api_struct *api_rpc_cmds) + const struct api_struct *api_rpc_cmds, int n_cmds) { int fn_num; fstring name; @@ -1186,14 +1342,14 @@ BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name, slprintf(name, sizeof(name)-1, "in_%s", rpc_name); prs_dump(name, p->hdr_req.opnum, &p->in_data.data); - for (fn_num = 0; api_rpc_cmds[fn_num].name; fn_num++) { + for (fn_num = 0; fn_num < n_cmds; fn_num++) { if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) { DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name)); break; } } - if (api_rpc_cmds[fn_num].name == NULL) { + if (fn_num == n_cmds) { /* * For an unknown RPC just return a fault PDU but * return True to allow RPC's on the pipe to continue @@ -1206,6 +1362,8 @@ BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name, offset1 = prs_offset(&p->out_data.rdata); + fprintf(stderr, "api_rpc_cmds[%d].fn == %p\n", + fn_num, api_rpc_cmds[fn_num].fn); /* do the actual command */ if(!api_rpc_cmds[fn_num].fn(p)) { DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name)); |