12ef29a81a
o Add "allow" command:
"allow users a b c" gives access to users a, b and c.
"allow modes auto" gives those users access to auto mode only.
"allow users *" and "allow modes *" are accepted.
No users and all modes are allowed by default.
UID 0 can do anything.
o Set the current label with the "load" and "dial" commands
so that the call to ppp.linkdown makes sense.
o Up the verison number.
o Don't OR MODE_AUTO for -background and -ddial.
o Don't OR MODE_INTER when we get a diagnostic connection.
o Allow up to 40 args per line (was 20).
o "set ifaddr" only changes the interface in AUTO mode (with other
modes, it happens after IPCP negotiation).
o Sort command descriptions in the man page.
o Support -dedicated mode where we just talk ppp forever (no login etc).
147 lines
3.2 KiB
C
147 lines
3.2 KiB
C
/*
|
|
* $Id: server.c,v 1.9 1997/11/09 22:07:29 brian Exp $
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/un.h>
|
|
#include <unistd.h>
|
|
|
|
#include "mbuf.h"
|
|
#include "log.h"
|
|
#include "loadalias.h"
|
|
#include "command.h"
|
|
#include "defs.h"
|
|
#include "vars.h"
|
|
#include "server.h"
|
|
#include "log.h"
|
|
#include "id.h"
|
|
|
|
int server = -1;
|
|
|
|
static struct sockaddr_un ifsun;
|
|
static char *rm;
|
|
|
|
int
|
|
ServerLocalOpen(const char *name, mode_t mask)
|
|
{
|
|
int s;
|
|
|
|
if (VarLocalAuth == LOCAL_DENY) {
|
|
LogPrintf(LogERROR, "Local: Can't open socket %s: No password "
|
|
"in ppp.secret\n", name);
|
|
return 1;
|
|
}
|
|
|
|
if (mode & MODE_INTER) {
|
|
LogPrintf(LogERROR, "Local: Can't open socket in interactive mode\n");
|
|
return 1;
|
|
}
|
|
|
|
ifsun.sun_len = strlen(name);
|
|
if (ifsun.sun_len > sizeof ifsun.sun_path - 1) {
|
|
LogPrintf(LogERROR, "Local: %s: Path too long\n", name);
|
|
return 2;
|
|
}
|
|
ifsun.sun_family = AF_LOCAL;
|
|
strcpy(ifsun.sun_path, name);
|
|
|
|
s = ID0socket(PF_LOCAL, SOCK_STREAM, 0);
|
|
if (s < 0) {
|
|
LogPrintf(LogERROR, "Local: socket: %s\n", strerror(errno));
|
|
return 3;
|
|
}
|
|
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s);
|
|
if (mask != (mode_t)-1)
|
|
mask = umask(mask);
|
|
if (bind(s, (struct sockaddr *) & ifsun, sizeof(ifsun)) < 0) {
|
|
if (mask != (mode_t)-1)
|
|
umask(mask);
|
|
LogPrintf(LogERROR, "Local: bind: %s\n", strerror(errno));
|
|
if (errno == EADDRINUSE && VarTerm)
|
|
fprintf(VarTerm, "Wait for a while, then try again.\n");
|
|
close(s);
|
|
ID0unlink(name);
|
|
return 4;
|
|
}
|
|
if (mask != (mode_t)-1)
|
|
umask(mask);
|
|
if (listen(s, 5) != 0) {
|
|
LogPrintf(LogERROR, "Local: Unable to listen to socket - OS overload?\n");
|
|
close(s);
|
|
ID0unlink(name);
|
|
return 5;
|
|
}
|
|
ServerClose();
|
|
server = s;
|
|
rm = ifsun.sun_path;
|
|
LogPrintf(LogPHASE, "Listening at local socket %s.\n", name);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ServerTcpOpen(int port)
|
|
{
|
|
struct sockaddr_in ifsin;
|
|
int s;
|
|
|
|
if (VarLocalAuth == LOCAL_DENY) {
|
|
LogPrintf(LogERROR, "Tcp: Can't open socket %d: No password "
|
|
"in ppp.secret\n", port);
|
|
return 6;
|
|
}
|
|
|
|
if (mode & MODE_INTER) {
|
|
LogPrintf(LogERROR, "Tcp: Can't open socket in interactive mode\n");
|
|
return 6;
|
|
}
|
|
|
|
s = ID0socket(PF_INET, SOCK_STREAM, 0);
|
|
if (s < 0) {
|
|
LogPrintf(LogERROR, "Tcp: socket: %s\n", strerror(errno));
|
|
return 7;
|
|
}
|
|
ifsin.sin_family = AF_INET;
|
|
ifsin.sin_addr.s_addr = INADDR_ANY;
|
|
ifsin.sin_port = htons(port);
|
|
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s);
|
|
if (bind(s, (struct sockaddr *) & ifsin, sizeof(ifsin)) < 0) {
|
|
LogPrintf(LogERROR, "Tcp: bind: %s\n", strerror(errno));
|
|
if (errno == EADDRINUSE && VarTerm)
|
|
fprintf(VarTerm, "Wait for a while, then try again.\n");
|
|
close(s);
|
|
return 8;
|
|
}
|
|
if (listen(s, 5) != 0) {
|
|
LogPrintf(LogERROR, "Tcp: Unable to listen to socket - OS overload?\n");
|
|
close(s);
|
|
return 9;
|
|
}
|
|
ServerClose();
|
|
server = s;
|
|
LogPrintf(LogPHASE, "Listening at port %d.\n", port);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
ServerClose()
|
|
{
|
|
if (server >= 0) {
|
|
close(server);
|
|
if (rm) {
|
|
ID0unlink(rm);
|
|
rm = 0;
|
|
}
|
|
}
|
|
server = -1;
|
|
}
|