1/* 2 Unix SMB/CIFS implementation. 3 async implementation of WINBINDD_SHOW_SEQUENCE 4 Copyright (C) Volker Lendecke 2009 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program. If not, see <http://www.gnu.org/licenses/>. 18*/ 19 20#include "includes.h" 21#include "winbindd.h" 22 23struct winbindd_show_sequence_state { 24 bool one_domain; 25 /* One domain */ 26 uint32_t seqnum; 27 28 /* All domains */ 29 int num_domains; 30 NTSTATUS *stati; 31 struct winbindd_domain **domains; 32 uint32_t *seqnums; 33}; 34 35static void winbindd_show_sequence_done_one(struct tevent_req *subreq); 36static void winbindd_show_sequence_done_all(struct tevent_req *subreq); 37 38struct tevent_req *winbindd_show_sequence_send(TALLOC_CTX *mem_ctx, 39 struct tevent_context *ev, 40 struct winbindd_cli_state *cli, 41 struct winbindd_request *request) 42{ 43 struct tevent_req *req, *subreq; 44 struct winbindd_show_sequence_state *state; 45 46 req = tevent_req_create(mem_ctx, &state, 47 struct winbindd_show_sequence_state); 48 if (req == NULL) { 49 return NULL; 50 } 51 state->one_domain = false; 52 state->domains = NULL; 53 state->stati = NULL; 54 state->seqnums = NULL; 55 56 /* Ensure null termination */ 57 request->domain_name[sizeof(request->domain_name)-1]='\0'; 58 59 DEBUG(3, ("show_sequence %s\n", request->domain_name)); 60 61 if (request->domain_name[0] != '\0') { 62 struct winbindd_domain *domain; 63 64 state->one_domain = true; 65 66 domain = find_domain_from_name_noinit( 67 request->domain_name); 68 if (domain == NULL) { 69 tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN); 70 return tevent_req_post(req, ev); 71 } 72 73 subreq = wb_seqnum_send(state, ev, domain); 74 if (tevent_req_nomem(subreq, req)) { 75 return tevent_req_post(req, ev); 76 } 77 tevent_req_set_callback( 78 subreq, winbindd_show_sequence_done_one, req); 79 return req; 80 } 81 82 subreq = wb_seqnums_send(state, ev); 83 if (tevent_req_nomem(subreq, req)) { 84 return tevent_req_post(req, ev); 85 } 86 tevent_req_set_callback(subreq, winbindd_show_sequence_done_all, req); 87 return req; 88} 89 90static void winbindd_show_sequence_done_one(struct tevent_req *subreq) 91{ 92 struct tevent_req *req = tevent_req_callback_data( 93 subreq, struct tevent_req); 94 struct winbindd_show_sequence_state *state = tevent_req_data( 95 req, struct winbindd_show_sequence_state); 96 NTSTATUS status; 97 98 status = wb_seqnum_recv(subreq, &state->seqnum); 99 TALLOC_FREE(subreq); 100 if (!NT_STATUS_IS_OK(status)) { 101 tevent_req_nterror(req, status); 102 return; 103 } 104 tevent_req_done(req); 105} 106 107static void winbindd_show_sequence_done_all(struct tevent_req *subreq) 108{ 109 struct tevent_req *req = tevent_req_callback_data( 110 subreq, struct tevent_req); 111 struct winbindd_show_sequence_state *state = tevent_req_data( 112 req, struct winbindd_show_sequence_state); 113 NTSTATUS status; 114 115 status = wb_seqnums_recv(subreq, state, &state->num_domains, 116 &state->domains, &state->stati, 117 &state->seqnums); 118 TALLOC_FREE(subreq); 119 if (!NT_STATUS_IS_OK(status)) { 120 tevent_req_nterror(req, status); 121 return; 122 } 123 tevent_req_done(req); 124} 125 126NTSTATUS winbindd_show_sequence_recv(struct tevent_req *req, 127 struct winbindd_response *response) 128{ 129 struct winbindd_show_sequence_state *state = tevent_req_data( 130 req, struct winbindd_show_sequence_state); 131 NTSTATUS status; 132 char *extra_data; 133 int i; 134 135 if (tevent_req_is_nterror(req, &status)) { 136 return status; 137 } 138 139 if (state->one_domain) { 140 response->data.sequence_number = state->seqnum; 141 return NT_STATUS_OK; 142 } 143 144 extra_data = talloc_strdup(response, ""); 145 if (extra_data == NULL) { 146 return NT_STATUS_NO_MEMORY; 147 } 148 149 for (i=0; i<state->num_domains; i++) { 150 if (!NT_STATUS_IS_OK(state->stati[i]) 151 || (state->seqnums[i] == DOM_SEQUENCE_NONE)) { 152 extra_data = talloc_asprintf_append_buffer( 153 extra_data, "%s : DISCONNECTED\n", 154 state->domains[i]->name); 155 } else { 156 extra_data = talloc_asprintf_append_buffer( 157 extra_data, "%s : %d\n", 158 state->domains[i]->name, 159 (int)state->seqnums[i]); 160 } 161 if (extra_data == NULL) { 162 return NT_STATUS_NO_MEMORY; 163 } 164 } 165 166 response->extra_data.data = extra_data; 167 response->length += talloc_get_size(extra_data); 168 return NT_STATUS_OK; 169} 170