| 1 |
158 |
chris |
/*
|
| 2 |
|
|
**************************************************************************
|
| 3 |
|
|
*
|
| 4 |
|
|
* Component: RDBG
|
| 5 |
|
|
* Module: servcon.c
|
| 6 |
|
|
*
|
| 7 |
|
|
* Synopsis: Management of RPC client connections.
|
| 8 |
|
|
*
|
| 9 |
208 |
chris |
* $Id: servcon.c,v 1.2 2001-09-27 12:02:01 chris Exp $
|
| 10 |
158 |
chris |
*
|
| 11 |
|
|
**************************************************************************
|
| 12 |
|
|
*/
|
| 13 |
|
|
|
| 14 |
|
|
#include <sys/errno.h>
|
| 15 |
|
|
#include <rdbg/rdbg.h>
|
| 16 |
|
|
#include <rdbg/servrpc.h>
|
| 17 |
|
|
|
| 18 |
|
|
/*
|
| 19 |
|
|
* ConnCreate - create a new connection entry for a client.
|
| 20 |
|
|
*
|
| 21 |
|
|
* This function finds an empty entry in the connection array
|
| 22 |
|
|
* or makes space. It fills in the fields that are passed to it.
|
| 23 |
|
|
* It does not do any validation on net addresses nor does it
|
| 24 |
|
|
* start a validation cycle on other clients. This is done by
|
| 25 |
|
|
* the caller.
|
| 26 |
|
|
*/
|
| 27 |
|
|
|
| 28 |
|
|
int
|
| 29 |
|
|
ConnCreate (struct svc_req* rqstp, open_in* in)
|
| 30 |
|
|
{
|
| 31 |
|
|
NET_OPAQUE sender;
|
| 32 |
|
|
int idx;
|
| 33 |
|
|
CONN_LIST* clst;
|
| 34 |
|
|
|
| 35 |
|
|
setErrno (0);
|
| 36 |
|
|
|
| 37 |
|
|
/* Convert to valid Net address */
|
| 38 |
|
|
if (! TspTranslateRpcAddr (rqstp, &sender)) {
|
| 39 |
|
|
DPRINTF (("ConnCreate: TspTranslateRpcAddr failed\n"));
|
| 40 |
|
|
return -1;
|
| 41 |
|
|
}
|
| 42 |
|
|
if (! TspValidateAddr ((NET_OPAQUE*) in->back_port, &sender)) {
|
| 43 |
|
|
DPRINTF (("ConnCreate: TspValidateAddr failed\n"));
|
| 44 |
|
|
return -1; /* errno now setup with error */
|
| 45 |
|
|
}
|
| 46 |
|
|
|
| 47 |
|
|
/* look for an empty connection entry */
|
| 48 |
|
|
for (idx = 0; idx < conn_list_cnt; idx++) {
|
| 49 |
|
|
if (!conn_list[idx].in_use)
|
| 50 |
|
|
break; /* an empty one found */
|
| 51 |
|
|
}
|
| 52 |
|
|
|
| 53 |
|
|
if (idx >= conn_list_cnt) { /* no empties, create space */
|
| 54 |
|
|
CONN_LIST* tmp_conn_list = conn_list;
|
| 55 |
|
|
|
| 56 |
|
|
conn_list_cnt += CONN_LIST_INC;
|
| 57 |
|
|
if (conn_list) {
|
| 58 |
|
|
conn_list = (CONN_LIST *) Realloc (conn_list, /* extend */
|
| 59 |
|
|
conn_list_cnt * sizeof (CONN_LIST));
|
| 60 |
|
|
} else {
|
| 61 |
|
|
conn_list = (CONN_LIST *)Malloc(conn_list_cnt * sizeof(CONN_LIST));
|
| 62 |
|
|
}
|
| 63 |
|
|
|
| 64 |
|
|
if (!conn_list) { /* unable to get space */
|
| 65 |
|
|
if ((conn_list_cnt -= CONN_LIST_INC)) {
|
| 66 |
|
|
/* was realloc, restore space */
|
| 67 |
|
|
conn_list = tmp_conn_list;
|
| 68 |
|
|
}
|
| 69 |
|
|
return -1; /* errno set by failed alloc */
|
| 70 |
|
|
}
|
| 71 |
|
|
/* clear newly created memory */
|
| 72 |
|
|
memset (conn_list + idx, 0, CONN_LIST_INC * sizeof (CONN_LIST));
|
| 73 |
|
|
} else { /* clear new entry */
|
| 74 |
|
|
memset (conn_list + idx, 0, sizeof (CONN_LIST));
|
| 75 |
|
|
}
|
| 76 |
|
|
clst = conn_list + idx;
|
| 77 |
|
|
|
| 78 |
|
|
clst->in_use = True; /* now in use */
|
| 79 |
|
|
clst->sender = sender;
|
| 80 |
|
|
memcpy (&clst->back_port, &in->back_port, sizeof (NET_OPAQUE));
|
| 81 |
|
|
memcpy (&clst->route, &in->destination, sizeof (NET_OPAQUE));
|
| 82 |
|
|
clst->debug_type = (UCHAR) in->debug_type;
|
| 83 |
|
|
clst->flags = in->flags;
|
| 84 |
|
|
strncpy (clst->user_name, in->user_name, NAMEMAX-1);
|
| 85 |
|
|
clst->user_name [NAMEMAX-1] = 0;
|
| 86 |
|
|
|
| 87 |
|
|
return idx;
|
| 88 |
|
|
}
|
| 89 |
|
|
|
| 90 |
|
|
/*
|
| 91 |
|
|
* ConnDelete - remove connection entry when shutdown.
|
| 92 |
|
|
*
|
| 93 |
|
|
*/
|
| 94 |
|
|
|
| 95 |
|
|
void
|
| 96 |
|
|
ConnDelete (int conn, struct svc_req* rqstp, close_control control)
|
| 97 |
|
|
{
|
| 98 |
|
|
CONN_LIST* clst = conn_list + conn;
|
| 99 |
|
|
int idx;
|
| 100 |
|
|
Boolean prim;
|
| 101 |
|
|
|
| 102 |
|
|
if (! clst->in_use) return; /* not active */
|
| 103 |
|
|
|
| 104 |
|
|
for (idx = 0; idx < pid_list_cnt; idx++) {
|
| 105 |
|
|
PID_LIST* plst = pid_list + idx;
|
| 106 |
|
|
|
| 107 |
|
|
if (! PIDMAP_TEST (conn, idx)) continue;
|
| 108 |
|
|
|
| 109 |
|
|
/* found a controlled pid */
|
| 110 |
|
|
prim = (plst->primary_conn == conn) ? True : False;
|
| 111 |
|
|
TgtDetachCon (conn, idx, True);
|
| 112 |
|
|
|
| 113 |
|
|
/* if still running or alive, we use close control on it */
|
| 114 |
|
|
if (! plst->pid)
|
| 115 |
|
|
continue; /* entry gone */
|
| 116 |
|
|
|
| 117 |
|
|
if (prim && control == CLOSE_KILL) {
|
| 118 |
|
|
/* kill off process */
|
| 119 |
|
|
TgtKillAndDelete (plst, rqstp, True);
|
| 120 |
|
|
} else if (! plst->owners) {
|
| 121 |
|
|
/* no owners left */
|
| 122 |
|
|
if (control == CLOSE_DETACH) {
|
| 123 |
|
|
TgtKillAndDelete (plst, rqstp, False);
|
| 124 |
|
|
}
|
| 125 |
|
|
if (control == CLOSE_DETACH || PROC_TERMINATED (plst)) {
|
| 126 |
|
|
TgtDelete (plst, conn, (control==CLOSE_DETACH) ?
|
| 127 |
|
|
BMSG_DETACH : 0);
|
| 128 |
|
|
}
|
| 129 |
|
|
}
|
| 130 |
|
|
}
|
| 131 |
|
|
if (clst->list) {
|
| 132 |
|
|
Free (clst->list); /* free allocated memory */
|
| 133 |
|
|
}
|
| 134 |
|
|
DPRINTF (("ConnDelete: Connection closed for port %u\n",
|
| 135 |
|
|
HL_W(*((UINT16*) &clst->back_port.c[2]))));
|
| 136 |
|
|
|
| 137 |
|
|
clst->in_use = False; /* free it back */
|
| 138 |
|
|
}
|
