* $Header$
*
* Copyright (C) 1987 by the Massachusetts Institute of Technology
+ * For copying and distribution information, please see the file
+ * <mit-copyright.h>.
*
- * $Log$
- * Revision 1.9 1987-08-04 02:41:22 wesommer
- * Clean up messages.
- *
- * Revision 1.8 87/07/16 15:43:19 wesommer
- * Fixed bug where the argv was not copied to private storage
- * (it got changed out from under us before it got sent..).
- *
- * Revision 1.7 87/07/14 00:39:01 wesommer
- * Rearranged loggin.
- *
- * Revision 1.6 87/06/30 20:04:43 wesommer
- * Free returned tuples when possible.
- *
- * Revision 1.5 87/06/26 10:55:53 wesommer
- * Added sms_access, now paiys attention to return code from
- * sms_process_query, sms_check_access.
- *
- * Revision 1.4 87/06/21 16:42:00 wesommer
- * Performance work, rearrangement of include files.
- *
- * Revision 1.3 87/06/04 01:35:01 wesommer
- * Added a working query request handler.
- *
- * Revision 1.2 87/06/03 16:07:50 wesommer
- * Fixes for lint.
- *
- * Revision 1.1 87/06/02 20:07:10 wesommer
- * Initial revision
- *
*/
#ifndef lint
static char *rcsid_sms_scall_c = "$Header$";
#endif lint
+#include <mit-copyright.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/file.h>
#include <krb.h>
#include <errno.h>
-#include "sms_server.h"
+#include "query.h"
+#include "mr_server.h"
extern char buf1[];
extern int nclients;
extern char *whoami;
extern char *malloc();
+extern int errno;
extern void clist_delete(), do_auth(), do_shutdown();
void do_call();
+extern int ingres_errno, mr_errcode;
+static int row_count;
+
+/* Put this in a variable so that we can patch it if necessary */
+int max_row_count = 2048;
/*
* Welcome to the (finite state) machine (highest level).
do_client(cp)
client *cp;
{
+ struct stat stbuf;
+
free_rtn_tuples(cp);
if (OP_STATUS(cp->pending_op) == OP_CANCELLED) {
- com_err(whoami, 0, "Closed connection (now %d client%s)",
+ com_err(whoami, 0, "Closed connection (now %d client%s, %d new queries, %d old)",
nclients-1,
- nclients!=2?"s":"");
+ nclients!=2?"s":"",
+ newqueries,
+ oldqueries);
clist_delete(cp);
+ /* if we no longer have any clients, and we're supposed to
+ * go down, then go down now.
+ */
+ if ((dormant == AWAKE) && (nclients == 0) &&
+ (stat(MOIRA_MOTD_FILE, &stbuf) == 0)) {
+ com_err(whoami, 0, "motd file exists, slumbertime");
+ dormant = SLEEPY;
+ }
return;
}
switch (cp->action) {
case CL_ACCEPT:
case CL_SEND:
/* Start recieving next request */
- initialize_operation(cp->pending_op, sms_start_recv,
+ initialize_operation(cp->pending_op, mr_start_recv,
(char *)&cp->args, (int (*)())NULL);
queue_operation(cp->con, CON_INPUT, cp->pending_op);
cp->action = CL_RECEIVE;
case CL_RECEIVE:
/* Data is here. Process it & start it heading back */
do_call(cp); /* This may block for a while. */
- initialize_operation(cp->pending_op, sms_start_send,
+ mr_destroy_reply(cp->args);
+ cp->args = NULL;
+ initialize_operation(cp->pending_op, mr_start_send,
(char *)&cp->reply, (int (*)())NULL);
queue_operation(cp->con, CON_OUTPUT, cp->pending_op);
cp->action = CL_SEND;
"shutdown",
"query",
"access",
+ "dcm",
+ "motd",
};
client *cl;
{
int pn;
- cl->reply.sms_argc = 0;
- cl->reply.sms_status = 0;
- if (((pn = cl->args->sms_procno) < 0) ||
- (pn > SMS_MAX_PROC)) {
+ extern int ingres_errno;
+ cl->reply.mr_argc = 0;
+ cl->reply.mr_status = 0;
+ cl->reply.mr_version_no = cl->args->mr_version_no;
+ if (((pn = cl->args->mr_procno) < 0) ||
+ (pn > MR_MAX_PROC)) {
com_err(whoami, 0, "procno out of range");
- cl->reply.sms_status = SMS_UNKNOWN_PROC;
+ cl->reply.mr_status = MR_UNKNOWN_PROC;
return;
}
if (log_flags & LOG_ARGS)
- log_args(procnames[pn], cl->args->sms_argc,
- cl->args->sms_argv);
+ log_args(procnames[pn], cl->args->mr_version_no,
+ cl->args->mr_argc, cl->args->mr_argv);
else if (log_flags & LOG_REQUESTS)
com_err(whoami, 0, "%s", procnames[pn]);
+ if ((dormant == ASLEEP || dormant == GROGGY) &&
+ pn != MR_NOOP && pn != MR_MOTD) {
+ cl->reply.mr_status = MR_DOWN;
+ if (log_flags & LOG_RES)
+ com_err(whoami, MR_DOWN, "(query refused)");
+ return;
+ }
+
+ /* make sure this gets cleared before every operation */
+ ingres_errno = 0;
+
switch(pn) {
- case SMS_NOOP:
- cl->reply.sms_status = 0;
+ case MR_NOOP:
+ cl->reply.mr_status = 0;
return;
- case SMS_AUTH:
+ case MR_AUTH:
do_auth(cl);
return;
- case SMS_QUERY:
+ case MR_QUERY:
do_retr(cl);
return;
- case SMS_ACCESS:
+ case MR_ACCESS:
do_access(cl);
return;
- case SMS_SHUTDOWN:
+ case MR_SHUTDOWN:
do_shutdown(cl);
return;
+
+ case MR_DO_UPDATE:
+ trigger_dcm(0, 0, cl);
+ return;
+
+ case MR_MOTD:
+ get_motd(cl);
+ return;
}
}
temp = t1->next;
if (t1 == cp->last) cp->last = NULL;
- sms_destroy_reply(t1->retval);
-#ifdef notdef
- if (t1->retval) {
- register sms_params *p = t1->retval;
- if (p->sms_flattened)
- free(p->sms_flattened);
- if (p->sms_argl)
- free(p->sms_argl);
- free(p);
- }
-#endif notdef
+ mr_destroy_reply(t1->retval);
delete_operation(t1->op);
free(t1);
}
char *p_cp;
{
register client *cp = (client *)p_cp;
+ mr_params *arg_tmp;
+ returned_tuples *tp;
+ OPERATION op_tmp;
+ register char **nargv;
+ register int i;
+
+ if (row_count++ >= max_row_count) {
+ ingres_errno = mr_errcode = MR_NO_MEM;
+ return;
+ }
+
/*
* This takes too much advantage of the fact that
* serialization of the data happens during the queue operation.
*/
- sms_params *arg_tmp = (sms_params *)db_alloc(sizeof(sms_params));
- returned_tuples *tp = (returned_tuples *)
- db_alloc(sizeof(returned_tuples));
- register char **nargv = (char **)malloc(argc * sizeof(char *));
- register int i;
+ arg_tmp = (mr_params *)db_alloc(sizeof(mr_params));
+ tp = (returned_tuples *)db_alloc(sizeof(returned_tuples));
+ nargv = (char **)malloc(argc * sizeof(char *));
- OPERATION op_tmp = create_operation();
+ op_tmp = create_operation();
+ if (mr_trim_args(argc, argv) == MR_NO_MEM) {
+ com_err(whoami, MR_NO_MEM, "while trimming args");
+ }
if (log_flags & LOG_RESP)
- log_args("return: ", argc, argv);
+ log_args("return: ", cp->args->mr_version_no, argc, argv);
tp->op = op_tmp;
tp->retval = arg_tmp;
tp->next = NULL;
- arg_tmp->sms_status = SMS_MORE_DATA;
- arg_tmp->sms_argc = argc;
- arg_tmp->sms_argv = nargv;
+ arg_tmp->mr_status = MR_MORE_DATA;
+ arg_tmp->mr_version_no = cp->args->mr_version_no;
+ arg_tmp->mr_argc = argc;
+ arg_tmp->mr_argv = nargv;
for (i = 0; i < argc; i++) {
register int len = strlen(argv[i]) + 1;
nargv[i] = malloc(len);
bcopy(argv[i], nargv[i], len);
}
- arg_tmp->sms_flattened = (char *)NULL;
- arg_tmp->sms_argl = (int *)NULL;
+ arg_tmp->mr_flattened = (char *)NULL;
+ arg_tmp->mr_argl = (int *)NULL;
if (cp->last) {
cp->last->next = tp;
}
reset_operation(op_tmp);
- initialize_operation(op_tmp, sms_start_send, (char *)arg_tmp,
+ initialize_operation(op_tmp, mr_start_send, (char *)arg_tmp,
(int (*)())NULL);
queue_operation(cp->con, CON_OUTPUT, op_tmp);
}
+list_users(callbk, callarg)
+ int (*callbk)();
+ char *callarg;
+{
+ char *argv[6];
+ char buf[30];
+ char buf1[30];
+ int i;
+ extern client **clients;
+ extern char *inet_ntoa();
+ char *cp;
+ char *index();
+ char *ctime();
+
+ for (i = 0; i < nclients; i++) {
+ register client *cl = clients[i];
+ if (cl->clname)
+ argv[0] = cl->clname;
+ else argv[0] = "unauthenticated";
+
+ argv[1] = inet_ntoa(cl->haddr.sin_addr);
+ argv[2] = buf;
+ sprintf(buf, "port %d", ntohs(cl->haddr.sin_port));
+ argv[3] = ctime(&cl->last_time_used);
+ cp = index(argv[3], '\n');
+ if (cp) *cp = '\0';
+ argv[4] = buf1;
+ sprintf(buf1, "[#%d]", cl->id);
+ (*callbk)(5, argv, callarg);
+ }
+ return 0;
+}
do_retr(cl)
- client *cl;
+ register client *cl;
{
- cl->reply.sms_argc = 0;
- cl->reply.sms_status = 0;
-
- cl->reply.sms_status =
- sms_process_query(cl,
- cl->args->sms_argv[0],
- cl->args->sms_argc-1,
- cl->args->sms_argv+1,
- retr_callback,
- (char *)cl);
+ register char *queryname;
+
+ cl->reply.mr_argc = 0;
+ cl->reply.mr_status = 0;
+ row_count = 0;
+
+ if (cl->args->mr_argc < 1) {
+ cl->reply.mr_status = MR_ARGS;
+ com_err(whoami, MR_ARGS, "got nameless query");
+ return;
+ }
+ queryname = cl->args->mr_argv[0];
+
+ if (cl->args->mr_version_no == MR_VERSION_2)
+ newqueries++;
+ else
+ oldqueries++;
+
+ if (strcmp(queryname, "_list_users") == 0)
+ cl->reply.mr_status = list_users(retr_callback, (char *)cl);
+ else {
+ cl->reply.mr_status =
+ mr_process_query(cl,
+ queryname,
+ cl->args->mr_argc-1,
+ cl->args->mr_argv+1,
+ retr_callback,
+ (char *)cl);
+ }
+ if (row_count >= max_row_count) {
+ critical_alert("moirad", "attempted query %s with %d rows\n",
+ queryname, row_count);
+ }
+
if (log_flags & LOG_RES)
com_err(whoami, 0, "Query complete.");
}
do_access(cl)
client *cl;
{
- cl->reply.sms_argc = 0;
+ if (cl->args->mr_argc < 1) {
+ cl->reply.mr_status = MR_ARGS;
+ com_err(whoami, MR_ARGS, "got nameless access");
+ return;
+ }
+ cl->reply.mr_argc = 0;
- cl->reply.sms_status =
- sms_check_access(cl,
- cl->args->sms_argv[0],
- cl->args->sms_argc-1,
- cl->args->sms_argv+1);
+ cl->reply.mr_status =
+ mr_check_access(cl,
+ cl->args->mr_argv[0],
+ cl->args->mr_argc-1,
+ cl->args->mr_argv+1);
com_err(whoami, 0, "Access check complete.");
}
+
+
+/* trigger_dcm is also used as a followup routine to the
+ * set_server_host_override query, hence the two dummy arguments.
+ */
+
+struct query pseudo_query = {
+ "trigger_dcm",
+ "tdcm",
+};
+
+trigger_dcm(dummy0, dummy1, cl)
+ int dummy0, dummy1;
+ client *cl;
+{
+ register int pid;
+ char prog[128];
+
+ cl->reply.mr_argc = 0;
+
+ if (cl->reply.mr_status = check_query_access(&pseudo_query, 0, cl) )
+ return(cl->reply.mr_status);
+
+ sprintf(prog, "%s/startdcm", BIN_DIR);
+ pid = vfork();
+ switch (pid) {
+ case 0:
+ for (dummy0 = getdtablesize() - 1; dummy0 > 2; dummy0--)
+ close(dummy0);
+ execl(prog, "startdcm", 0);
+ exit(1);
+
+ case -1:
+ cl->reply.mr_status = errno;
+ return(0);
+
+ default:
+ return(0);
+ }
+}
+
+
+get_motd(cl)
+client *cl;
+{
+ int motd, len;
+ char buffer[1024];
+ char *arg[1];
+
+ arg[0] = buffer;
+ cl->reply.mr_status = 0;
+ motd = open(MOIRA_MOTD_FILE, 0, O_RDONLY);
+ if (motd < 0) return;
+ len = read(motd, buffer, sizeof(buffer) - 1);
+ close(motd);
+ buffer[len] = 0;
+ row_count = 0;
+ retr_callback(1, arg, cl);
+ cl->reply.mr_status = 0;
+}
andersk / moira.git / blobdiff