1 | /***************************************
2 |
3 | Protocol mirror module (pw). Whois protocol.
4 |
5 | Status: NOT REVUED, NOT TESTED
6 |
7 | ******************/ /******************
8 | Filename : protocol_mirror.c
9 | Author : andrei
10 | OSs Tested : Solaris
11 | ******************/ /******************
12 | Copyright (c) 1999 RIPE NCC
13 |
14 | All Rights Reserved
15 |
16 | Permission to use, copy, modify, and distribute this software and its
17 | documentation for any purpose and without fee is hereby granted,
18 | provided that the above copyright notice appear in all copies and that
19 | both that copyright notice and this permission notice appear in
20 | supporting documentation, and that the name of the author not be
21 | used in advertising or publicity pertaining to distribution of the
22 | software without specific, written prior permission.
23 |
24 | THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
25 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
26 | AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
27 | DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
28 | AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
29 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
30 | ***************************************/
31 | #include <stdio.h>
32 | #include <glib.h>
33 |
34 | #include "protocol_mirror.h"
35 | #include "mysql_driver.h"
36 | #include "constants.h"
37 |
38 | //#include "access_control.h"
39 | #include "socket.h"
40 | #include "stubs.h"
41 | #include "ud.h"
42 | #include "ta.h"
43 |
44 | #include "ca_configFns.h"
45 | #include "ca_dictSyms.h"
46 | #include "ca_macros.h"
47 | #include "ca_srcAttribs.h"
48 |
49 |
50 |
51 | #define MIN_ARG_LENGTH 6
52 | #define NRTM_DELIM "-:"
53 | /*
54 | * parses input and fills nrtm_q_t structure
55 | *
56 | * Returns:
57 | * -1 in case of garbage
58 | * 0 in case of valid -g
59 | * 1 in case of -q sources
60 | *
61 | */
62 | static int parse_request(char *input, nrtm_q_t *nrtm_q)
63 | {
64 | char *ptr=input;
65 | char *token;
66 | char **tokens;
67 | char **tokens2;
68 | int res=0;
69 |
70 | // return(-1);
71 |
72 | if(strlen(input)<MIN_ARG_LENGTH) return(-1);
73 | g_strchug(input);
74 | res=strncmp(input, "-g", 2);
75 | if(res!=0) {
76 | /* may be this is -q source query */
77 | res=strncmp(input, "-q", 2);
78 | if(res!=0)return(-1);
79 | ptr+=2;
80 | g_strchug(ptr);
81 | res=strncmp(ptr, "sources", 7);
82 | if(res!=0)return(-1);
83 | ptr+=7;
84 | g_strchug(ptr);
85 | token=ptr;
86 | if ((*token=='\0') || (*token=='\n'))nrtm_q->source=NULL;
87 | else {
88 | ptr=index(token, ' ');
89 | if (ptr) nrtm_q->source=g_strndup(token, (ptr-token));
90 | else nrtm_q->source=g_strdup(token);
91 | }
92 | return(1);
93 | }
94 |
95 | /* this is -q query */
96 | ptr+=2;
97 |
98 |
99 | g_strchug(ptr);
100 | g_strdelimit(ptr, NRTM_DELIM, ':');
101 | tokens=g_strsplit(ptr, ":", 4);
102 | if(tokens==NULL) return(-1);
103 |
104 | if(tokens[0]) {
105 | /* first token is source name */
106 | nrtm_q->source=g_strdup(tokens[0]);
107 | if(tokens[1]) {
108 | /* second token is version number */
109 | nrtm_q->version=atoi(tokens[1]);
110 | if(tokens[2]) {
111 | /* this is first serial */
112 | nrtm_q->first=atol(tokens[2]);
113 | if(tokens[3]) {
114 | /* this is last serial */
115 | nrtm_q->last=atol(tokens[3]);
116 | } else res=-1;
117 | } else res=-1;
118 | } else res=-1;
119 | } else res=-1;
120 | g_strfreev(tokens);
121 |
122 | return(res);
123 | }
124 |
125 |
126 | /* PM_interact() */
127 | /*++++++++++++++++++++++++++++++++++++++
128 | Interact with the client.
129 |
130 | int sock Socket that client is connected to.
131 |
132 | More:
133 | +html+ <PRE>
134 | Authors:
135 | ottrey
136 | andrei
137 |
138 | +html+ </PRE><DL COMPACT>
139 | +html+ <DT>Online References:
140 | +html+ <DD><UL>
141 | +html+ </UL></DL>
142 |
143 | ++++++++++++++++++++++++++++++++++++++*/
144 | void PM_interact(int sock) {
145 | char input[MAX_INPUT_SIZE];
146 | ca_dbSource_t *source_hdl;
147 | int read_result;
148 | int parse_result;
149 |
150 |
151 | char *hostaddress=NULL;
152 | // acl_st acl_rip, acl_eip;
153 |
154 | sk_conn_st condat;
155 | nrtm_q_t nrtm_q;
156 | long current_serial;
157 | long oldest_serial;
158 |
159 | char *object;
160 | int operation;
161 | char buff[STR_S];
162 |
163 | const char *db_host;
164 | int db_port;
165 | const char *db_name;
166 | const char *db_user;
167 | const char *db_pswd;
168 |
169 | GString *gbuff;
170 |
171 | SQ_connection_t *sql_connection;
172 |
173 | /* make a record for thread accounting */
174 | TA_add(sock, "nrtm_srv");
175 |
176 |
177 | /* Get the IP of the client */
178 | hostaddress = SK_getpeername(sock);
179 | printf("SK address: %s\n", hostaddress);
180 |
181 | /* initialise the connection structure */
182 | memset( &condat, 0, sizeof(sk_conn_st));
183 | /* set the connection data: both rIP and eIP to real IP */
184 | condat.sock = sock;
185 | condat.ip = hostaddress;
186 | SK_getpeerip(sock, &(condat.rIP));
187 | memcpy( &(condat.eIP), &(condat.rIP), sizeof(ip_addr_t));
188 |
189 |
190 | /* Read input */
191 | read_result = SK_cd_gets(&(condat), input, MAX_INPUT_SIZE);
192 |
193 | /* read_result < 0 is an error and connection should be closed */
194 | if (read_result < 0 ) {
195 | /* log the fact, rtc was set */
196 | //not yet, SK_... returns arb number return;
197 | }
198 |
199 | parse_result = parse_request(input, &nrtm_q);
200 | if (parse_result < 0 ) {
201 | fprintf(stderr, "Garbage received: %s\n", input);
202 | /* log the fact and exit */
203 | /* Free the hostaddress */
204 | SK_cd_close(&(condat));
205 | free(hostaddress);
206 | return;
207 | }
208 | if (parse_result == 1 ) {
209 |
210 | fprintf(stderr, "-q sources\n");
211 | gbuff=PM_get_nrtm_sources(&(condat.rIP), nrtm_q.source);
212 | SK_cd_puts(&condat, gbuff->str);
213 | /* Free allocated memory */
214 | g_string_free(gbuff, TRUE);
215 | free(hostaddress);
216 | free(nrtm_q.source);
217 | SK_cd_close(&(condat));
218 | return;
219 | }
220 |
221 |
222 |
223 | source_hdl = ca_get_SourceHandleByName(nrtm_q.source);
224 | /* get database */
225 | /* db_name=CO_get_database(); */
226 | db_name = ca_get_srcdbname(source_hdl);
227 |
228 | /* get database host*/
229 | /* db_host=CO_get_host();*/
230 | db_host = ca_get_srcdbmachine(source_hdl);
231 | /* get database port*/
232 | /* db_port=CO_get_database_port();*/
233 | db_port = ca_get_srcdbport(source_hdl);
234 | /* get database user*/
235 | /* db_user=CO_get_user(); */
236 | db_user = ca_get_srcdbuser(source_hdl);
237 | /* get database password*/
238 | /* db_pswd=CO_get_password(); */
239 | db_pswd = ca_get_srcdbpassword(source_hdl);
240 |
241 | fprintf(stderr, "D: Making SQL connection to %s@%s ...", db_name, db_host);
242 | sql_connection = SQ_get_connection(db_host, db_port,db_name, db_user, db_pswd);
243 | if(!sql_connection) {
244 | fprintf(stderr, "E: ERROR: no SQL connection\n");
245 | return;
246 | }
247 | fprintf(stderr, "OK\n");
248 |
249 | /* free copies of the variables */
250 | free(db_host);
251 | free(db_name);
252 | free(db_user);
253 | free(db_pswd);
254 |
255 | current_serial=PM_get_current_serial(sql_connection);
256 | oldest_serial=PM_get_oldest_serial(sql_connection);
257 |
258 | if((current_serial==-1) || (oldest_serial==-1)) {
259 | fprintf(stderr, "E: ERROR: cannot get serial #\n");
260 | /* Free the hostaddress */
261 | SK_cd_close(&(condat));
262 | free(hostaddress);
263 | return;
264 | }
265 |
266 | /* zero indicates that LAST keyword has been used */
267 | if(nrtm_q.last==0)nrtm_q.last=current_serial;
268 |
269 |
270 | if((nrtm_q.first>nrtm_q.last) || (nrtm_q.first<oldest_serial) || (nrtm_q.last>current_serial)) {
271 | if(nrtm_q.first<oldest_serial) nrtm_q.last=oldest_serial-1;
272 | if(nrtm_q.last>current_serial) nrtm_q.first=current_serial+1;
273 | fprintf(stderr, "E: ERROR: invalid range\n");
274 | /* write error message back to the client */
275 | sprintf(buff, "%%ERROR:4: Invalid range: serial(s) %ld-%ld don't exist\n", nrtm_q.first, nrtm_q.last);
276 | sprintf(buff, "%%ERROR:4: Invalid range: Not within %ld-%ld \n", oldest_serial, current_serial);
277 | SK_cd_puts(&condat, buff);
278 | /* Free the hostaddress */
279 | free(hostaddress);
280 | free(nrtm_q.source);
281 | SK_cd_close(&(condat));
282 | return;
283 | }
284 |
285 | current_serial=nrtm_q.first;
286 | /* print banner */
287 |
288 | sprintf(buff, "%%START Version:%d %s %ld-%ld\n", nrtm_q.version, nrtm_q.source, nrtm_q.first, nrtm_q.last);
289 | SK_cd_puts(&condat, buff);
290 |
291 | /* make a record for thread accounting */
292 | TA_setactivity(buff);
293 |
294 | /* now start feeding client with data */
295 | do {
296 |
297 | object=PM_get_serial_object(sql_connection, current_serial, &operation);
298 | if (operation == OP_ADD) SK_cd_puts(&condat, "\nADD\n\n");
299 | else SK_cd_puts(&condat, "\nDEL\n\n");
300 |
301 | SK_cd_puts(&condat, object);
302 |
303 |
304 | current_serial++;
305 |
306 |
307 | } /* do */
308 | while((current_serial<=nrtm_q.last) && (condat.rtc == 0));
309 |
310 |
311 | sprintf(buff, "\n%%END %s\n\n", nrtm_q.source);
312 | SK_cd_puts(&condat, buff);
313 |
314 | /* make a record for thread accounting */
315 | TA_delete();
316 |
317 | SK_cd_close(&(condat));
318 | /* Free the hostaddress */
319 | free(hostaddress);
320 | free(nrtm_q.source);
321 |
322 |
323 |
324 | } /* PM_interact() */