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--- a/pppd/main.c
+++ b/pppd/main.c
@@ -742,8 +742,11 @@ void
set_ifunit(iskey)
int iskey;
{
- info("Using interface %s%d", PPP_DRV_NAME, ifunit);
- slprintf(ifname, sizeof(ifname), "%s%d", PPP_DRV_NAME, ifunit);
+ if (use_ifname[0] == 0)
+ slprintf(ifname, sizeof(ifname), "%s%d", PPP_DRV_NAME, ifunit);
+ else
+ slprintf(ifname, sizeof(ifname), "%s", use_ifname);
+ info("Using interface %s", ifname);
script_setenv("IFNAME", ifname, iskey);
if (iskey) {
create_pidfile(getpid()); /* write pid to file */
--- a/pppd/options.c
+++ b/pppd/options.c
@@ -111,6 +111,7 @@ int log_to_fd = 1; /* send log messages
bool log_default = 1; /* log_to_fd is default (stdout) */
int maxfail = 10; /* max # of unsuccessful connection attempts */
char linkname[MAXPATHLEN]; /* logical name for link */
+char use_ifname[IFNAMSIZ]; /* physical name for PPP link */
bool tune_kernel; /* may alter kernel settings */
int connect_delay = 1000; /* wait this many ms after connect script */
int req_unit = -1; /* requested interface unit */
@@ -264,6 +265,9 @@ option_t general_options[] = {
{ "linkname", o_string, linkname,
"Set logical name for link",
OPT_PRIO | OPT_PRIV | OPT_STATIC, NULL, MAXPATHLEN },
+ { "ifname", o_string, use_ifname,
+ "Set physical name for PPP interface",
+ OPT_PRIO | OPT_PRIV | OPT_STATIC, NULL, IFNAMSIZ },
{ "maxfail", o_int, &maxfail,
"Maximum number of unsuccessful connection attempts to allow",
--- a/pppd/pppd.h
+++ b/pppd/pppd.h
@@ -71,6 +71,10 @@
#include "eui64.h"
#endif
+#ifndef IFNAMSIZ
+#define IFNAMSIZ 16
+#endif
+
/*
* Limits.
*/
@@ -308,6 +312,7 @@ extern char *record_file; /* File to rec
extern bool sync_serial; /* Device is synchronous serial device */
extern int maxfail; /* Max # of unsuccessful connection attempts */
extern char linkname[MAXPATHLEN]; /* logical name for link */
+extern char use_ifname[IFNAMSIZ]; /* physical name for PPP interface */
extern bool tune_kernel; /* May alter kernel settings as necessary */
extern int connect_delay; /* Time to delay after connect script */
extern int max_data_rate; /* max bytes/sec through charshunt */
--- a/pppd/sys-linux.c
+++ b/pppd/sys-linux.c
@@ -168,6 +168,10 @@ struct in6_ifreq {
/* We can get an EIO error on an ioctl if the modem has hung up */
#define ok_error(num) ((num)==EIO)
+#if !defined(PPP_DRV_NAME)
+#define PPP_DRV_NAME "ppp"
+#endif /* !defined(PPP_DRV_NAME) */
+
static int tty_disc = N_TTY; /* The TTY discipline */
static int ppp_disc = N_PPP; /* The PPP discpline */
static int initfdflags = -1; /* Initial file descriptor flags for fd */
@@ -622,7 +626,8 @@ void generic_disestablish_ppp(int dev_fd
*/
static int make_ppp_unit()
{
- int x, flags;
+ struct ifreq ifr;
+ int x, flags, s;
if (ppp_dev_fd >= 0) {
dbglog("in make_ppp_unit, already had /dev/ppp open?");
@@ -645,6 +650,32 @@ static int make_ppp_unit()
}
if (x < 0)
error("Couldn't create new ppp unit: %m");
+
+ if (use_ifname[0] != 0) {
+ s = socket(PF_INET, SOCK_DGRAM, 0);
+ if (s < 0)
+ s = socket(PF_PACKET, SOCK_DGRAM, 0);
+ if (s < 0)
+ s = socket(PF_INET6, SOCK_DGRAM, 0);
+ if (s < 0)
+ s = socket(PF_UNIX, SOCK_DGRAM, 0);
+ if (s >= 0) {
+ slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s%d", PPP_DRV_NAME, ifunit);
+ slprintf(ifr.ifr_newname, sizeof(ifr.ifr_newname), "%s", use_ifname);
+ x = ioctl(s, SIOCSIFNAME, &ifr);
+ close(s);
+ } else {
+ x = s;
+ }
+ if (x < 0) {
+ error("Couldn't rename %s to %s", ifr.ifr_name, ifr.ifr_newname);
+ close(ppp_dev_fd);
+ ppp_dev_fd = -1;
+ } else {
+ info("Renamed %s to %s", ifr.ifr_name, ifr.ifr_newname);
+ }
+ }
+
return x;
}
--- a/pppstats/pppstats.c
+++ b/pppstats/pppstats.c
@@ -506,10 +506,12 @@ main(argc, argv)
if (argc > 0)
interface = argv[0];
+/*
if (sscanf(interface, PPP_DRV_NAME "%d", &unit) != 1) {
fprintf(stderr, "%s: invalid interface '%s' specified\n",
progname, interface);
}
+*/
#ifndef STREAMS
{
|
