diff options
Diffstat (limited to 'source3/rpc_server/srv_pipe.c')
-rw-r--r-- | source3/rpc_server/srv_pipe.c | 703 |
1 files changed, 422 insertions, 281 deletions
diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c index ca87cafcf7..73a06b208c 100644 --- a/source3/rpc_server/srv_pipe.c +++ b/source3/rpc_server/srv_pipe.c @@ -43,7 +43,7 @@ extern int DEBUGLEVEL; -static void NTLMSSPcalc_p( pipes_struct *p, unsigned char *data, int len) +static void NTLMSSPcalc_p( rpcsrv_struct *p, unsigned char *data, int len) { unsigned char *hash = p->ntlmssp_hash; unsigned char index_i = hash[256]; @@ -71,27 +71,40 @@ static void NTLMSSPcalc_p( pipes_struct *p, unsigned char *data, int len) } /******************************************************************* + frees all temporary data used in construction of pdu + ********************************************************************/ +void rpcsrv_free_temp(rpcsrv_struct *l) +{ + mem_free_data(l->rhdr .data); + mem_free_data(l->rfault .data); + mem_free_data(l->rdata_i.data); + mem_free_data(l->rauth .data); + mem_free_data(l->rverf .data); + mem_free_data(l->rntlm .data); +} + +/******************************************************************* turns a DCE/RPC request into a DCE/RPC reply this is where the data really should be split up into an array of headers and data sections. ********************************************************************/ -BOOL create_rpc_reply(pipes_struct *p, - uint32 data_start, uint32 data_end) +BOOL create_rpc_reply(rpcsrv_struct *l, uint32 data_start) { char *data; - BOOL auth_verify = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SIGN); - BOOL auth_seal = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SEAL); + BOOL auth_verify = IS_BITS_SET_ALL(l->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SIGN); + BOOL auth_seal = IS_BITS_SET_ALL(l->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SEAL); uint32 data_len; uint32 auth_len; + uint32 data_end = l->rdata.offset + (l->ntlmssp_auth ? (8 + 16) : 0); DEBUG(5,("create_rpc_reply: data_start: %d data_end: %d max_tsize: %d\n", - data_start, data_end, p->hdr_ba.bba.max_tsize)); + data_start, data_end, l->hdr_ba.bba.max_tsize)); - auth_len = p->hdr.auth_len; + auth_len = l->hdr.auth_len; - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { DEBUG(10,("create_rpc_reply: auth\n")); if (auth_len != 16) @@ -100,63 +113,63 @@ BOOL create_rpc_reply(pipes_struct *p, } } - prs_init(&p->rhdr , 0x18, 4, 0, False); - prs_init(&p->rauth, 1024, 4, 0, False); - prs_init(&p->rverf, 0x10, 4, 0, False); + prs_init(&l->rhdr , 0x18, 4, 0, False); + prs_init(&l->rauth, 1024, 4, 0, False); + prs_init(&l->rverf, 0x10, 4, 0, False); - p->hdr.pkt_type = RPC_RESPONSE; /* mark header as an rpc response */ + l->hdr.pkt_type = RPC_RESPONSE; /* mark header as an rpc response */ /* set up rpc header (fragmentation issues) */ if (data_start == 0) { - p->hdr.flags = RPC_FLG_FIRST; + l->hdr.flags = RPC_FLG_FIRST; } else { - p->hdr.flags = 0; + l->hdr.flags = 0; } - p->hdr_resp.alloc_hint = data_end - data_start; /* calculate remaining data to be sent */ + l->hdr_resp.alloc_hint = data_end - data_start; /* calculate remaining data to be sent */ - if (p->hdr_resp.alloc_hint + 0x18 <= p->hdr_ba.bba.max_tsize) + if (l->hdr_resp.alloc_hint + 0x18 <= l->hdr_ba.bba.max_tsize) { - p->hdr.flags |= RPC_FLG_LAST; - p->hdr.frag_len = p->hdr_resp.alloc_hint + 0x18; + l->hdr.flags |= RPC_FLG_LAST; + l->hdr.frag_len = l->hdr_resp.alloc_hint + 0x18; } else { - p->hdr.frag_len = p->hdr_ba.bba.max_tsize; + l->hdr.frag_len = l->hdr_ba.bba.max_tsize; } - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { - p->hdr_resp.alloc_hint -= auth_len + 8; + l->hdr_resp.alloc_hint -= auth_len + 8; } - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { - data_len = p->hdr.frag_len - auth_len - (auth_verify ? 8 : 0) - 0x18; + data_len = l->hdr.frag_len - auth_len - (auth_verify ? 8 : 0) - 0x18; } else { - data_len = p->hdr.frag_len - 0x18; + data_len = l->hdr.frag_len - 0x18; } - p->rhdr.data->offset.start = 0; - p->rhdr.data->offset.end = 0x18; + l->rhdr.data->offset.start = 0; + l->rhdr.data->offset.end = 0x18; /* store the header in the data stream */ - smb_io_rpc_hdr ("hdr" , &(p->hdr ), &(p->rhdr), 0); - smb_io_rpc_hdr_resp("resp", &(p->hdr_resp), &(p->rhdr), 0); + smb_io_rpc_hdr ("hdr" , &(l->hdr ), &(l->rhdr), 0); + smb_io_rpc_hdr_resp("resp", &(l->hdr_resp), &(l->rhdr), 0); /* don't use rdata: use rdata_i instead, which moves... */ /* make a pointer to the rdata data, NOT A COPY */ - p->rdata_i.data = NULL; - prs_init(&p->rdata_i, 0, p->rdata.align, p->rdata.data->margin, p->rdata.io); - data = mem_data(&(p->rdata.data), data_start); - mem_create(p->rdata_i.data, data, 0, data_len, 0, False); - p->rdata_i.offset = data_len; + l->rdata_i.data = NULL; + prs_init(&l->rdata_i, 0, l->rdata.align, l->rdata.data->margin, l->rdata.io); + data = mem_data(&(l->rdata.data), data_start); + mem_create(l->rdata_i.data, data, 0, data_len, 0, False); + l->rdata_i.offset = data_len; if (auth_len > 0) { @@ -168,44 +181,44 @@ BOOL create_rpc_reply(pipes_struct *p, if (auth_seal) { crc32 = crc32_calc_buffer(data_len, data); - NTLMSSPcalc_p(p, (uchar*)data, data_len); + NTLMSSPcalc_p(l, (uchar*)data, data_len); } if (auth_seal || auth_verify) { - make_rpc_hdr_auth(&p->auth_info, 0x0a, 0x06, 0x08, (auth_verify ? 1 : 0)); - smb_io_rpc_hdr_auth("hdr_auth", &p->auth_info, &p->rauth, 0); + make_rpc_hdr_auth(&l->auth_info, 0x0a, 0x06, 0x08, (auth_verify ? 1 : 0)); + smb_io_rpc_hdr_auth("hdr_auth", &l->auth_info, &l->rauth, 0); } if (auth_verify) { char *auth_data; - p->ntlmssp_seq_num++; - make_rpc_auth_ntlmssp_chk(&p->ntlmssp_chk, NTLMSSP_SIGN_VERSION, crc32, p->ntlmssp_seq_num++); - smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(p->ntlmssp_chk), &p->rverf, 0); - auth_data = mem_data(&p->rverf.data, 4); - NTLMSSPcalc_p(p, (uchar*)auth_data, 12); + l->ntlmssp_seq_num++; + make_rpc_auth_ntlmssp_chk(&l->ntlmssp_chk, NTLMSSP_SIGN_VERSION, crc32, l->ntlmssp_seq_num++); + smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(l->ntlmssp_chk), &l->rverf, 0); + auth_data = mem_data(&l->rverf.data, 4); + NTLMSSPcalc_p(l, (uchar*)auth_data, 12); } } /* set up the data chain */ - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { - prs_link(NULL , &p->rhdr , &p->rdata_i); - prs_link(&p->rhdr , &p->rdata_i, &p->rauth ); - prs_link(&p->rdata_i, &p->rauth , &p->rverf ); - prs_link(&p->rauth , &p->rverf , NULL ); + prs_link(NULL , &l->rhdr , &l->rdata_i); + prs_link(&l->rhdr , &l->rdata_i, &l->rauth ); + prs_link(&l->rdata_i, &l->rauth , &l->rverf ); + prs_link(&l->rauth , &l->rverf , NULL ); } else { - prs_link(NULL , &p->rhdr , &p->rdata_i); - prs_link(&p->rhdr, &p->rdata_i, NULL ); + prs_link(NULL , &l->rhdr , &l->rdata_i); + prs_link(&l->rhdr, &l->rdata_i, NULL ); } - return p->rhdr.data != NULL && p->rhdr.offset == 0x18; + return l->rhdr.data != NULL && l->rhdr.offset == 0x18; } -static BOOL api_pipe_ntlmssp_verify(pipes_struct *p) +static BOOL api_pipe_ntlmssp_verify(rpcsrv_struct *l) { uchar *pwd = NULL; uchar null_pwd[16]; @@ -220,23 +233,15 @@ static BOOL api_pipe_ntlmssp_verify(pipes_struct *p) struct smb_passwd *smb_pass = NULL; - user_struct *vuser = get_valid_user_struct(p->vuid); - memset(null_pwd, 0, sizeof(null_pwd)); DEBUG(5,("api_pipe_ntlmssp_verify: checking user details\n")); - if (vuser == NULL) - { - DEBUG(0,("get user struct %d failed\n", p->vuid)); - return False; - } - - lm_owf_len = p->ntlmssp_resp.hdr_lm_resp.str_str_len; - nt_owf_len = p->ntlmssp_resp.hdr_nt_resp.str_str_len; - usr_len = p->ntlmssp_resp.hdr_usr .str_str_len; - dom_len = p->ntlmssp_resp.hdr_domain .str_str_len; - wks_len = p->ntlmssp_resp.hdr_wks .str_str_len; + lm_owf_len = l->ntlmssp_resp.hdr_lm_resp.str_str_len; + nt_owf_len = l->ntlmssp_resp.hdr_nt_resp.str_str_len; + usr_len = l->ntlmssp_resp.hdr_usr .str_str_len; + dom_len = l->ntlmssp_resp.hdr_domain .str_str_len; + wks_len = l->ntlmssp_resp.hdr_wks .str_str_len; if (lm_owf_len == 0 && nt_owf_len == 0 && usr_len == 0 && dom_len == 0 && wks_len == 0) @@ -247,65 +252,65 @@ static BOOL api_pipe_ntlmssp_verify(pipes_struct *p) { if (lm_owf_len == 0) return False; if (nt_owf_len == 0) return False; - if (p->ntlmssp_resp.hdr_usr .str_str_len == 0) return False; - if (p->ntlmssp_resp.hdr_domain .str_str_len == 0) return False; - if (p->ntlmssp_resp.hdr_wks .str_str_len == 0) return False; + if (l->ntlmssp_resp.hdr_usr .str_str_len == 0) return False; + if (l->ntlmssp_resp.hdr_domain .str_str_len == 0) return False; + if (l->ntlmssp_resp.hdr_wks .str_str_len == 0) return False; } if (lm_owf_len > sizeof(lm_owf)) return False; if (nt_owf_len > sizeof(nt_owf)) return False; - memcpy(lm_owf, p->ntlmssp_resp.lm_resp, sizeof(lm_owf)); - memcpy(nt_owf, p->ntlmssp_resp.nt_resp, sizeof(nt_owf)); + memcpy(lm_owf, l->ntlmssp_resp.lm_resp, sizeof(lm_owf)); + memcpy(nt_owf, l->ntlmssp_resp.nt_resp, sizeof(nt_owf)); #ifdef DEBUG_PASSWORD DEBUG(100,("lm, nt owfs, chal\n")); dump_data(100, lm_owf, sizeof(lm_owf)); dump_data(100, nt_owf, sizeof(nt_owf)); - dump_data(100, p->ntlmssp_chal.challenge, 8); + dump_data(100, l->ntlmssp_chal.challenge, 8); #endif - memset(p->user_name, 0, sizeof(p->user_name)); - memset(p->domain , 0, sizeof(p->domain )); - memset(p->wks , 0, sizeof(p->wks )); + memset(l->user_name, 0, sizeof(l->user_name)); + memset(l->domain , 0, sizeof(l->domain )); + memset(l->wks , 0, sizeof(l->wks )); - if (IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_UNICODE)) + if (IS_BITS_SET_ALL(l->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_UNICODE)) { - unibuf_to_ascii(p->user_name, p->ntlmssp_resp.user, - MIN(p->ntlmssp_resp.hdr_usr .str_str_len/2, - sizeof(p->user_name)-1)); - unibuf_to_ascii(p->domain , p->ntlmssp_resp.domain, - MIN(p->ntlmssp_resp.hdr_domain.str_str_len/2, - sizeof(p->domain )-1)); - unibuf_to_ascii(p->wks , p->ntlmssp_resp.wks, - MIN(p->ntlmssp_resp.hdr_wks .str_str_len/2, - sizeof(p->wks )-1)); + unibuf_to_ascii(l->user_name, l->ntlmssp_resp.user, + MIN(l->ntlmssp_resp.hdr_usr .str_str_len/2, + sizeof(l->user_name)-1)); + unibuf_to_ascii(l->domain , l->ntlmssp_resp.domain, + MIN(l->ntlmssp_resp.hdr_domain.str_str_len/2, + sizeof(l->domain )-1)); + unibuf_to_ascii(l->wks , l->ntlmssp_resp.wks, + MIN(l->ntlmssp_resp.hdr_wks .str_str_len/2, + sizeof(l->wks )-1)); } else { - fstrcpy(p->user_name, p->ntlmssp_resp.user ); - fstrcpy(p->domain , p->ntlmssp_resp.domain); - fstrcpy(p->wks , p->ntlmssp_resp.wks ); + fstrcpy(l->user_name, l->ntlmssp_resp.user ); + fstrcpy(l->domain , l->ntlmssp_resp.domain); + fstrcpy(l->wks , l->ntlmssp_resp.wks ); } if (anonymous) { DEBUG(5,("anonymous user session\n")); - mdfour(vuser->dc.user_sess_key, null_pwd, 16); + mdfour(l->user_sess_key, null_pwd, 16); pwd = null_pwd; - p->ntlmssp_validated = True; + l->ntlmssp_validated = True; } else { - DEBUG(5,("user: %s domain: %s wks: %s\n", p->user_name, p->domain, p->wks)); + DEBUG(5,("user: %s domain: %s wks: %s\n", l->user_name, l->domain, l->wks)); become_root(True); - smb_pass = getsmbpwnam(p->user_name); - p->ntlmssp_validated = pass_check_smb(smb_pass, p->domain, - (uchar*)p->ntlmssp_chal.challenge, + smb_pass = getsmbpwnam(l->user_name); + l->ntlmssp_validated = pass_check_smb(smb_pass, l->domain, + (uchar*)l->ntlmssp_chal.challenge, lm_owf, lm_owf_len, nt_owf, nt_owf_len, - NULL, vuser->dc.user_sess_key); + NULL, l->user_sess_key); unbecome_root(True); if (smb_pass != NULL) @@ -314,7 +319,7 @@ static BOOL api_pipe_ntlmssp_verify(pipes_struct *p) } } - if (p->ntlmssp_validated && pwd != NULL) + if (l->ntlmssp_validated && pwd != NULL) { uchar p24[24]; NTLMSSPOWFencrypt(pwd, lm_owf, p24); @@ -331,47 +336,47 @@ static BOOL api_pipe_ntlmssp_verify(pipes_struct *p) for (ind = 0; ind < 256; ind++) { - p->ntlmssp_hash[ind] = (unsigned char)ind; + l->ntlmssp_hash[ind] = (unsigned char)ind; } for( ind = 0; ind < 256; ind++) { unsigned char tc; - j += (p->ntlmssp_hash[ind] + k2[ind%8]); + j += (l->ntlmssp_hash[ind] + k2[ind%8]); - tc = p->ntlmssp_hash[ind]; - p->ntlmssp_hash[ind] = p->ntlmssp_hash[j]; - p->ntlmssp_hash[j] = tc; + tc = l->ntlmssp_hash[ind]; + l->ntlmssp_hash[ind] = l->ntlmssp_hash[j]; + l->ntlmssp_hash[j] = tc; } - p->ntlmssp_hash[256] = 0; - p->ntlmssp_hash[257] = 0; + l->ntlmssp_hash[256] = 0; + l->ntlmssp_hash[257] = 0; } - p->ntlmssp_seq_num = 0; + l->ntlmssp_seq_num = 0; } else { - p->ntlmssp_validated = False; + l->ntlmssp_validated = False; } - return p->ntlmssp_validated; + return l->ntlmssp_validated; } -static BOOL api_pipe_ntlmssp(pipes_struct *p, prs_struct *pd) +static BOOL api_pipe_ntlmssp(rpcsrv_struct *l, prs_struct *pd) { /* receive a negotiate; send a challenge; receive a response */ - switch (p->auth_verifier.msg_type) + switch (l->auth_verifier.msg_type) { case NTLMSSP_NEGOTIATE: { - smb_io_rpc_auth_ntlmssp_neg("", &p->ntlmssp_neg, pd, 0); + smb_io_rpc_auth_ntlmssp_neg("", &l->ntlmssp_neg, pd, 0); break; } case NTLMSSP_AUTH: { - smb_io_rpc_auth_ntlmssp_resp("", &p->ntlmssp_resp, pd, 0); - if (!api_pipe_ntlmssp_verify(p)) + smb_io_rpc_auth_ntlmssp_resp("", &l->ntlmssp_resp, pd, 0); + if (!api_pipe_ntlmssp_verify(l)) { pd->offset = 0; } @@ -381,7 +386,7 @@ static BOOL api_pipe_ntlmssp(pipes_struct *p, prs_struct *pd) { /* NTLMSSP expected: unexpected message type */ DEBUG(3,("unexpected message type in NTLMSSP %d\n", - p->auth_verifier.msg_type)); + l->auth_verifier.msg_type)); return False; } } @@ -393,7 +398,7 @@ struct api_cmd { char * pipe_clnt_name; char * pipe_srv_name; - BOOL (*fn) (pipes_struct *, prs_struct *); + BOOL (*fn) (rpcsrv_struct *, prs_struct *); }; static struct api_cmd **api_fd_commands = NULL; @@ -480,7 +485,7 @@ void close_msrpc_command_processor(void) void add_msrpc_command_processor(char* pipe_name, char* process_name, - BOOL (*fn) (pipes_struct *, prs_struct *)) + BOOL (*fn) (rpcsrv_struct *, prs_struct *)) { struct api_cmd cmd; cmd.pipe_clnt_name = pipe_name; @@ -490,269 +495,281 @@ void add_msrpc_command_processor(char* pipe_name, add_api_cmd_to_array(&num_cmds, &api_fd_commands, &cmd); } -static BOOL api_pipe_bind_auth_resp(pipes_struct *p, prs_struct *pd) +static BOOL api_pipe_bind_auth_resp(rpcsrv_struct *l, prs_struct *pd) { DEBUG(5,("api_pipe_bind_auth_resp: decode request. %d\n", __LINE__)); - if (p->hdr.auth_len == 0) return False; + if (l->hdr.auth_len == 0) return False; /* decode the authentication verifier response */ - smb_io_rpc_hdr_autha("", &p->autha_info, pd, 0); + smb_io_rpc_hdr_autha("", &l->autha_info, pd, 0); if (pd->offset == 0) return False; - if (!rpc_hdr_auth_chk(&(p->auth_info))) return False; + if (!rpc_hdr_auth_chk(&(l->auth_info))) return False; - smb_io_rpc_auth_ntlmssp_verifier("", &p->auth_verifier, pd, 0); + smb_io_rpc_auth_ntlmssp_verifier("", &l->auth_verifier, pd, 0); if (pd->offset == 0) return False; - if (!rpc_auth_ntlmssp_verifier_chk(&(p->auth_verifier), "NTLMSSP", NTLMSSP_AUTH)) return False; + if (!rpc_auth_ntlmssp_verifier_chk(&(l->auth_verifier), "NTLMSSP", NTLMSSP_AUTH)) return False; - return api_pipe_ntlmssp(p, pd); + return api_pipe_ntlmssp(l, pd); } -static BOOL api_pipe_fault_resp(pipes_struct *p, prs_struct *pd, uint32 status) +static BOOL api_pipe_fault_resp(rpcsrv_struct *l, prs_struct *pd, uint32 status) { DEBUG(5,("api_pipe_fault_resp: make response\n")); - prs_init(&(p->rhdr ), 0x18, 4, 0, False); - prs_init(&(p->rfault ), 0x8 , 4, 0, False); + prs_init(&(l->rhdr ), 0x18, 4, 0, False); + prs_init(&(l->rfault ), 0x8 , 4, 0, False); /***/ /*** set up the header, response header and fault status ***/ /***/ - p->hdr_fault.status = status; - p->hdr_fault.reserved = 0x0; + l->hdr_fault.status = status; + l->hdr_fault.reserved = 0x0; - p->hdr_resp.alloc_hint = 0x0; - p->hdr_resp.cancel_count = 0x0; - p->hdr_resp.reserved = 0x0; + l->hdr_resp.alloc_hint = 0x0; + l->hdr_resp.cancel_count = 0x0; + l->hdr_resp.reserved = 0x0; - make_rpc_hdr(&p->hdr, RPC_FAULT, RPC_FLG_NOCALL | RPC_FLG_FIRST | RPC_FLG_LAST, - p->hdr.call_id, + make_rpc_hdr(&l->hdr, RPC_FAULT, RPC_FLG_NOCALL | RPC_FLG_FIRST | RPC_FLG_LAST, + l->hdr.call_id, 0x20, 0); - smb_io_rpc_hdr ("hdr" , &(p->hdr ), &(p->rhdr), 0); - smb_io_rpc_hdr_resp ("resp" , &(p->hdr_resp ), &(p->rhdr), 0); - smb_io_rpc_hdr_fault("fault", &(p->hdr_fault), &(p->rfault), 0); - mem_realloc_data(p->rhdr.data, p->rhdr.offset); - mem_realloc_data(p->rfault.data, p->rfault.offset); + smb_io_rpc_hdr ("hdr" , &(l->hdr ), &(l->rhdr), 0); + smb_io_rpc_hdr_resp ("resp" , &(l->hdr_resp ), &(l->rhdr), 0); + smb_io_rpc_hdr_fault("fault", &(l->hdr_fault), &(l->rfault), 0); + mem_realloc_data(l->rhdr.data, l->rhdr.offset); + mem_realloc_data(l->rfault.data, l->rfault.offset); /***/ /*** link rpc header and fault together ***/ /***/ - prs_link(NULL , &p->rhdr , &p->rfault); - prs_link(&p->rhdr, &p->rfault, NULL ); + prs_link(NULL , &l->rhdr , &l->rfault); + prs_link(&l->rhdr, &l->rfault, NULL ); return True; } -static BOOL api_pipe_bind_and_alt_req(pipes_struct *p, prs_struct *pd, enum RPC_PKT_TYPE pkt_type) +static BOOL srv_pipe_bind_and_alt_req(rpcsrv_struct *l, prs_struct *pd, + const char* ack_pipe_name, + enum RPC_PKT_TYPE pkt_type) { uint16 assoc_gid; - fstring ack_pipe_name; - int i = 0; - - p->ntlmssp_auth = False; - - DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__)); - - for (i = 0; i < num_cmds; 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; - } - } - if (api_fd_commands[i]->fn == NULL) return False; + l->ntlmssp_auth = False; /* decode the bind request */ - smb_io_rpc_hdr_rb("", &p->hdr_rb, pd, 0); + smb_io_rpc_hdr_rb("", &l->hdr_rb, pd, 0); if (pd->offset == 0) return False; - if (p->hdr.auth_len != 0) + if (l->hdr.auth_len != 0) { /* decode the authentication verifier */ - smb_io_rpc_hdr_auth ("", &p->auth_info , pd, 0); + smb_io_rpc_hdr_auth ("", &l->auth_info , pd, 0); if (pd->offset == 0) return False; - p->ntlmssp_auth = p->auth_info.auth_type = 0x0a; + l->ntlmssp_auth = l->auth_info.auth_type = 0x0a; - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { - smb_io_rpc_auth_ntlmssp_verifier("", &p->auth_verifier, pd, 0); + smb_io_rpc_auth_ntlmssp_verifier("", &l->auth_verifier, pd, 0); if (pd->offset == 0) return False; - p->ntlmssp_auth = strequal(p->auth_verifier.signature, "NTLMSSP"); + l->ntlmssp_auth = strequal(l->auth_verifier.signature, "NTLMSSP"); } - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { - if (!api_pipe_ntlmssp(p, pd)) return False; - } - } - - switch (pkt_type) - { - case RPC_BINDACK: - { - /* name has to be \PIPE\xxxxx */ - fstrcpy(ack_pipe_name, "\\PIPE\\"); - fstrcat(ack_pipe_name, p->pipe_srv_name); - break; - } - case RPC_ALTCONTRESP: - { - /* secondary address CAN be NULL - * as the specs says it's ignored. - * It MUST NULL to have the spoolss working. - */ - fstrcpy(ack_pipe_name, ""); - break; - } - default: - { - return False; + if (!api_pipe_ntlmssp(l, pd)) return False; } } DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__)); - prs_init(&(p->rdata), 1024, 4, 0, False); - prs_init(&(p->rhdr ), 0x18, 4, 0, False); - prs_init(&(p->rauth), 1024, 4, 0, False); - prs_init(&(p->rverf), 0x08, 4, 0, False); - prs_init(&(p->rntlm), 1024, 4, 0, False); + prs_init(&(l->rdata), 1024, 4, 0, False); + prs_init(&(l->rhdr ), 0x18, 4, 0, False); + prs_init(&(l->rauth), 1024, 4, 0, False); + prs_init(&(l->rverf), 0x08, 4, 0, False); + prs_init(&(l->rntlm), 1024, 4, 0, False); /***/ /*** do the bind ack first ***/ /***/ - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { assoc_gid = 0x7a77; } else { - assoc_gid = p->hdr_rb.bba.assoc_gid; + assoc_gid = l->hdr_rb.bba.assoc_gid; } - make_rpc_hdr_ba(&p->hdr_ba, - p->hdr_rb.bba.max_tsize, - p->hdr_rb.bba.max_rsize, + make_rpc_hdr_ba(&l->hdr_ba, + l->hdr_rb.bba.max_tsize, + l->hdr_rb.bba.max_rsize, assoc_gid, ack_pipe_name, 0x1, 0x0, 0x0, - &(p->hdr_rb.transfer)); + &(l->hdr_rb.transfer)); - smb_io_rpc_hdr_ba("", &p->hdr_ba, &p->rdata, 0); - mem_realloc_data(p->rdata.data, p->rdata.offset); + smb_io_rpc_hdr_ba("", &l->hdr_ba, &l->rdata, 0); + mem_realloc_data(l->rdata.data, l->rdata.offset); /***/ /*** now the authentication ***/ /***/ - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { uint8 challenge[8]; generate_random_buffer(challenge, 8, False); /*** authentication info ***/ - make_rpc_hdr_auth(&p->auth_info, 0x0a, 0x06, 0, 1); - smb_io_rpc_hdr_auth("", &p->auth_info, &p->rverf, 0); - mem_realloc_data(p->rverf.data, p->rverf.offset); + make_rpc_hdr_auth(&l->auth_info, 0x0a, 0x06, 0, 1); + smb_io_rpc_hdr_auth("", &l->auth_info, &l->rverf, 0); + mem_realloc_data(l->rverf.data, l->rverf.offset); /*** NTLMSSP verifier ***/ - make_rpc_auth_ntlmssp_verifier(&p->auth_verifier, + make_rpc_auth_ntlmssp_verifier(&l->auth_verifier, "NTLMSSP", NTLMSSP_CHALLENGE); - smb_io_rpc_auth_ntlmssp_verifier("", &p->auth_verifier, &p->rauth, 0); - mem_realloc_data(p->rauth.data, p->rauth.offset); + smb_io_rpc_auth_ntlmssp_verifier("", &l->auth_verifier, &l->rauth, 0); + mem_realloc_data(l->rauth.data, l->rauth.offset); /* NTLMSSP challenge ***/ - make_rpc_auth_ntlmssp_chal(&p->ntlmssp_chal, + make_rpc_auth_ntlmssp_chal(&l->ntlmssp_chal, 0x000082b1, challenge); - smb_io_rpc_auth_ntlmssp_chal("", &p->ntlmssp_chal, &p->rntlm, 0); - mem_realloc_data(p->rntlm.data, p->rntlm.offset); + smb_io_rpc_auth_ntlmssp_chal("", &l->ntlmssp_chal, &l->rntlm, 0); + mem_realloc_data(l->rntlm.data, l->rntlm.offset); } /***/ /*** then do the header, now we know the length ***/ /***/ - make_rpc_hdr(&p->hdr, pkt_type, RPC_FLG_FIRST | RPC_FLG_LAST, - p->hdr.call_id, - p->rdata.offset + p->rverf.offset + p->rauth.offset + p->rntlm.offset + 0x10, - p->rauth.offset + p->rntlm.offset); + make_rpc_hdr(&l->hdr, pkt_type, RPC_FLG_FIRST | RPC_FLG_LAST, + l->hdr.call_id, + l->rdata.offset + l->rverf.offset + l->rauth.offset + l->rntlm.offset + 0x10, + l->rauth.offset + l->rntlm.offset); - smb_io_rpc_hdr("", &p->hdr, &p->rhdr, 0); - mem_realloc_data(p->rhdr.data, p->rdata.offset); + smb_io_rpc_hdr("", &l->hdr, &l->rhdr, 0); + mem_realloc_data(l->rhdr.data, l->rdata.offset); /***/ /*** link rpc header, bind acknowledgment and authentication responses ***/ /***/ - if (p->ntlmssp_auth) + if (l->ntlmssp_auth) { - prs_link(NULL , &p->rhdr , &p->rdata); - prs_link(&p->rhdr , &p->rdata, &p->rverf); - prs_link(&p->rdata, &p->rverf, &p->rauth); - prs_link(&p->rverf, &p->rauth, &p->rntlm); - prs_link(&p->rauth, &p->rntlm, NULL ); + prs_link(NULL , &l->rhdr , &l->rdata); + prs_link(&l->rhdr , &l->rdata, &l->rverf); + prs_link(&l->rdata, &l->rverf, &l->rauth); + prs_link(&l->rverf, &l->rauth, &l->rntlm); + prs_link(&l->rauth, &l->rntlm, NULL ); } else { - prs_link(NULL , &p->rhdr , &p->rdata); - prs_link(&p->rhdr, &p->rdata, NULL ); + prs_link(NULL , &l->rhdr , &l->rdata); + prs_link(&l->rhdr, &l->rdata, NULL ); } return True; } +static BOOL api_pipe_bind_and_alt_req(rpcsrv_struct *l, prs_struct *pd, + const char* name, + enum RPC_PKT_TYPE pkt_type) +{ + fstring ack_pipe_name; + fstring pipe_srv_name; + int i = 0; + + DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__)); + + for (i = 0; i < num_cmds; i++) + { + if (strequal(api_fd_commands[i]->pipe_clnt_name, 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(pipe_srv_name, api_fd_commands[i]->pipe_srv_name); + break; + } + } + + if (api_fd_commands[i]->fn == NULL) return False; + + switch (pkt_type) + { + case RPC_BINDACK: + { + /* name has to be \PIPE\xxxxx */ + fstrcpy(ack_pipe_name, "\\PIPE\\"); + fstrcat(ack_pipe_name, pipe_srv_name); + break; + } + case RPC_ALTCONTRESP: + { + /* secondary address CAN be NULL + * as the specs says it's ignored. + * It MUST NULL to have the spoolss working. + */ + fstrcpy(ack_pipe_name, ""); + break; + } + default: + { + return False; + } + } + return srv_pipe_bind_and_alt_req(l, pd, ack_pipe_name, pkt_type); +} + /* * The RPC Alter-Context call is used only by the spoolss pipe * simply because there is a bug (?) in the MS unmarshalling code * or in the marshalling code. If it's in the later, then Samba * have the same bug. */ -static BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *pd) +static BOOL api_pipe_bind_req(rpcsrv_struct *l, prs_struct *pd, + const char* name) { - return api_pipe_bind_and_alt_req(p, pd, RPC_BINDACK); + return api_pipe_bind_and_alt_req(l, pd, name, RPC_BINDACK); } -static BOOL api_pipe_alt_req(pipes_struct *p, prs_struct *pd) +static BOOL api_pipe_alt_req(rpcsrv_struct *l, prs_struct *pd, + const char* name) { - return api_pipe_bind_and_alt_req(p, pd, RPC_ALTCONTRESP); + return api_pipe_bind_and_alt_req(l, pd, name, RPC_ALTCONTRESP); } -static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *pd) +static BOOL api_pipe_auth_process(rpcsrv_struct *l, prs_struct *pd) { - BOOL auth_verify = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SIGN); - BOOL auth_seal = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SEAL); + BOOL auth_verify = IS_BITS_SET_ALL(l->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SIGN); + BOOL auth_seal = IS_BITS_SET_ALL(l->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SEAL); int data_len; int auth_len; uint32 old_offset; uint32 crc32 = 0; - auth_len = p->hdr.auth_len; + auth_len = l->hdr.auth_len; if (auth_len != 16 && auth_verify) { return False; } - data_len = p->hdr.frag_len - auth_len - (auth_verify ? 8 : 0) - 0x18; + data_len = l->hdr.frag_len - auth_len - (auth_verify ? 8 : 0) - 0x18; DEBUG(5,("api_pipe_auth_process: sign: %s seal: %s data %d auth %d\n", BOOLSTR(auth_verify), BOOLSTR(auth_seal), data_len, auth_len)); @@ -761,7 +778,7 @@ static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *pd) { char *data = mem_data(&pd->data, pd->offset); DEBUG(5,("api_pipe_auth_process: data %d\n", pd->offset)); - NTLMSSPcalc_p(p, (uchar*)data, data_len); + NTLMSSPcalc_p(l, (uchar*)data, data_len); crc32 = crc32_calc_buffer(data_len, data); } @@ -771,18 +788,18 @@ static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *pd) if (auth_seal || auth_verify) { pd->offset += data_len; - smb_io_rpc_hdr_auth("hdr_auth", &p->auth_info, pd, 0); + smb_io_rpc_hdr_auth("hdr_auth", &l->auth_info, pd, 0); } if (auth_verify) { char *req_data = mem_data(&pd->data, pd->offset + 4); DEBUG(5,("api_pipe_auth_process: auth %d\n", pd->offset + 4)); - NTLMSSPcalc_p(p, (uchar*)req_data, 12); - smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(p->ntlmssp_chk), pd, 0); + NTLMSSPcalc_p(l, (uchar*)req_data, 12); + smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(l->ntlmssp_chk), pd, 0); - if (!rpc_auth_ntlmssp_chk(&(p->ntlmssp_chk), crc32, - p->ntlmssp_seq_num)) + if (!rpc_auth_ntlmssp_chk(&(l->ntlmssp_chk), crc32, + l->ntlmssp_seq_num)) { return False; } @@ -793,13 +810,13 @@ static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *pd) return True; } -static BOOL api_pipe_request(pipes_struct *p, prs_struct *pd) +static BOOL api_pipe_request(rpcsrv_struct *l, prs_struct *pd, const char* name) { int i = 0; - if (p->ntlmssp_auth && p->ntlmssp_validated) + if (l->ntlmssp_auth && l->ntlmssp_validated) { - if (!api_pipe_auth_process(p, pd)) return False; + if (!api_pipe_auth_process(l, pd)) return False; DEBUG(0,("api_pipe_request: **** MUST CALL become_user() HERE **** \n")); #if 0 @@ -809,61 +826,116 @@ static BOOL api_pipe_request(pipes_struct *p, prs_struct *pd) for (i = 0; i < num_cmds; i++) { - if (strequal(api_fd_commands[i]->pipe_clnt_name, p->name) && + if (strequal(api_fd_commands[i]->pipe_clnt_name, name) && api_fd_commands[i]->fn != NULL) { DEBUG(3,("Doing \\PIPE\\%s\n", api_fd_commands[i]->pipe_clnt_name)); - return api_fd_commands[i]->fn(p, pd); + return api_fd_commands[i]->fn(l, pd); } } return False; } -BOOL rpc_command(pipes_struct *p, prs_struct *pd) +BOOL rpc_add_to_pdu(prs_struct *ps, const char *data, int len) { - BOOL reply = False; - DEBUG(10,("rpc_command\n")); + int prev_size; + int new_size; + char *to = NULL; - if (p->m != NULL) + ps->offset = 0; + + if (ps->data == NULL) { - DEBUG(10,("msrpc redirect\n")); - if (!msrpc_send_prs(p->m, pd)) + DEBUG(10,("rpc_add_to_pdu: new_size: %d\n", len)); + prs_init(ps, len, 4, 0, True); + prev_size = 0; + new_size = len; + if (ps->data == NULL) { - DEBUG(2,("msrpc redirect send failed\n")); return False; } - if (!msrpc_receive_prs(p->m, &p->rhdr)) + } + else + { + prev_size = ps->data->data_used; + new_size = prev_size + len; + DEBUG(10,("rpc_add_to_pdu: prev_size: %d new_size: %d\n", + prev_size, new_size)); + if (!mem_realloc_data(ps->data, new_size)) { - DEBUG(2,("msrpc redirect receive failed\n")); return False; } - prs_link(NULL, &p->rhdr, NULL); - prs_debug_out(&p->rhdr, 10); - return True; } - if (pd->data == NULL) return False; + DEBUG(10,("ps->data->start: %d\n", ps->data->offset.start)); + ps->data->offset.start = 0x0; + + to = mem_data(&ps->data, prev_size); + if (to == NULL) + { + DEBUG(10,("rpc_add_to_pdu: data could not be found\n")); + return False; + } + if (ps->data->data_used != new_size) + { + DEBUG(10,("rpc_add_to_pdu: ERROR: data used %d new_size %d\n", + ps->data->data_used, new_size)); + return False; + } + memcpy(to, data, len); + return True; +} + +static BOOL rpc_redir_remote(pipes_struct *p, prs_struct *req, prs_struct *resp) +{ + DEBUG(10,("rpc_redirect\n")); + + if (!msrpc_send_prs(p->m, req)) + { + DEBUG(2,("msrpc redirect send failed\n")); + return False; + } + if (!msrpc_receive_prs(p->m, resp)) + { + DEBUG(2,("msrpc redirect receive failed\n")); + return False; + } + prs_link(NULL, resp, NULL); + prs_debug_out(resp, "redirect", 100); + return True; +} +static BOOL rpc_redir_local(rpcsrv_struct *l, prs_struct *req, prs_struct *resp, + const char* name) +{ + BOOL reply = False; + + if (req->data == NULL) return False; + + /* lkclXXXX still assume that the first complete PDU is always + in a single request!!! + */ /* process the rpc header */ - smb_io_rpc_hdr("", &p->hdr, pd, 0); + req->offset = 0x0; + smb_io_rpc_hdr("", &l->hdr, req, 0); - if (pd->offset == 0) return False; + if (req->offset == 0) return False; - switch (p->hdr.pkt_type) + switch (l->hdr.pkt_type) { case RPC_BIND : { - reply = api_pipe_bind_req(p, pd); + reply = api_pipe_bind_req(l, req, name); break; } case RPC_ALTCONT: { - reply = api_pipe_alt_req(p, pd); + reply = api_pipe_alt_req(l, req, name); break; } case RPC_REQUEST: { - if (p->ntlmssp_auth && !p->ntlmssp_validated) + if (l->ntlmssp_auth && !l->ntlmssp_validated) { /* authentication _was_ requested and it failed. sorry, no deal! @@ -873,41 +945,87 @@ BOOL rpc_command(pipes_struct *p, prs_struct *pd) else { /* read the rpc header */ - smb_io_rpc_hdr_req("req", &(p->hdr_req), pd, 0); - reply = api_pipe_request(p, pd); + smb_io_rpc_hdr_req("req", &(l->hdr_req), req, 0); + reply = api_pipe_request(l, req, name); } break; } case RPC_BINDRESP: /* not the real name! */ { - reply = api_pipe_bind_auth_resp(p, pd); - p->ntlmssp_auth = reply; + reply = api_pipe_bind_auth_resp(l, req); + l->ntlmssp_auth = reply; break; } } if (!reply) { - reply = api_pipe_fault_resp(p, pd, 0x1c010002); + reply = api_pipe_fault_resp(l, req, 0x1c010002); + } + + if (reply) + { + /* flatten the data into a single pdu */ + reply = prs_copy(resp, &l->rhdr); } + /* delete intermediate data used to set up the pdu. leave + rdata alone because that's got the rest of the data in it */ + rpcsrv_free_temp(l); + return reply; } +BOOL rpc_send_and_rcv_pdu(pipes_struct *p) +{ + DEBUG(10,("rpc_send_and_rcv_pdu\n")); + + if (p->m != NULL) + { + return rpc_redir_remote(p, &p->smb_pdu, &p->rsmb_pdu); + } + else if (p->l != NULL) + { + return rpc_redir_local(p->l, &p->smb_pdu, &p->rsmb_pdu, + p->name); + } + return False; +} + +/******************************************************************* + entry point from msrpc to smb. adds data received to pdu; checks + pdu; hands pdu off to msrpc, which gets a pdu back (except in the + case of the RPC_BINDCONT pdu). + ********************************************************************/ +BOOL rpc_to_smb(pipes_struct *p, char *data, int len) +{ + BOOL reply = rpc_add_to_pdu(&p->smb_pdu, data, len); + + if (reply && is_complete_pdu(&p->smb_pdu)) + { + p->smb_pdu.offset = p->smb_pdu.data->data_size; + prs_link(NULL, &p->smb_pdu, NULL); + reply = rpc_send_and_rcv_pdu(p); + mem_free_data(p->smb_pdu.data); + prs_init(&p->smb_pdu, 0, 4, 0, True); + + } + return reply; +} /******************************************************************* receives a netlogon pipe and responds. ********************************************************************/ -static BOOL api_rpc_command(pipes_struct *p, +static BOOL api_rpc_command(rpcsrv_struct *l, char *rpc_name, struct api_struct *api_rpc_cmds, prs_struct *data) { int fn_num; - DEBUG(4,("api_rpc_command: %s op 0x%x - ", rpc_name, p->hdr_req.opnum)); + DEBUG(4,("api_rpc_command: %s op 0x%x - ", rpc_name, l->hdr_req.opnum)); for (fn_num = 0; api_rpc_cmds[fn_num].name; fn_num++) { - if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) + if (api_rpc_cmds[fn_num].opnum == l->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) { DEBUG(3,("api_rpc_command: %s\n", api_rpc_cmds[fn_num].name)); break; @@ -921,18 +1039,18 @@ static BOOL api_rpc_command(pipes_struct *p, } /* start off with 1024 bytes, and a large safety margin too */ - prs_init(&p->rdata, 1024, 4, SAFETY_MARGIN, False); + prs_init(&l->rdata, 1024, 4, SAFETY_MARGIN, False); /* do the actual command */ - api_rpc_cmds[fn_num].fn(p, data, &(p->rdata)); + api_rpc_cmds[fn_num].fn(l, data, &(l->rdata)); - if (p->rdata.data == NULL || p->rdata.offset == 0) + if (l->rdata.data == NULL || l->rdata.offset == 0) { - mem_free_data(p->rdata.data); + mem_free_data(l->rdata.data); return False; } - mem_realloc_data(p->rdata.data, p->rdata.offset); + mem_realloc_data(l->rdata.data, l->rdata.offset); DEBUG(10,("called %s\n", rpc_name)); @@ -943,7 +1061,7 @@ static BOOL api_rpc_command(pipes_struct *p, /******************************************************************* receives a netlogon pipe and responds. ********************************************************************/ -BOOL api_rpcTNP(pipes_struct *p, char *rpc_name, struct api_struct *api_rpc_cmds, +BOOL api_rpcTNP(rpcsrv_struct *l, char *rpc_name, struct api_struct *api_rpc_cmds, prs_struct *data) { if (data == NULL || data->data == NULL) @@ -953,16 +1071,39 @@ BOOL api_rpcTNP(pipes_struct *p, char *rpc_name, struct api_struct *api_rpc_cmds } /* interpret the command */ - if (!api_rpc_command(p, rpc_name, api_rpc_cmds, data)) + if (!api_rpc_command(l, rpc_name, api_rpc_cmds, data)) { return False; } /* create the rpc header */ - if (!create_rpc_reply(p, 0, p->rdata.offset + (p->ntlmssp_auth ? (16 + 8) : 0))) + if (!create_rpc_reply(l, 0)) { return False; } return True; } + +BOOL is_complete_pdu(prs_struct *ps) +{ + RPC_HDR hdr; + int len = ps->data->data_size; + + DEBUG(10,("is_complete_pdu - len %d\n", len)); + ps->offset = 0x0; + + if (!ps->io) + { + /* writing. oops!! */ + DEBUG(4,("is_complete_pdu: write set, not read!\n")); + return False; + } + + if (!smb_io_rpc_hdr("hdr", &hdr, ps, 0)) + { + return False; + } + /* check that the fragment length is equal to the data length so far */ + return hdr.frag_len == len; +} |