Give if_tun the "almost clone" makeover.
This commit is contained in:
phk
parent
b813f67e2a
commit
8675115e75
@ -11,7 +11,7 @@
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# device lines is present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
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#
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# $Id: GENERIC,v 1.34 1999/08/10 17:15:11 wpaul Exp $
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# $Id: GENERIC,v 1.35 1999/08/11 22:33:57 gallatin Exp $
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machine alpha
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cpu EV4
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@ -127,7 +127,7 @@ pseudo-device loop
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pseudo-device ether
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pseudo-device sl 1
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pseudo-device ppp 1
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pseudo-device tun 1
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pseudo-device tun
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pseudo-device pty
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# KTRACE enables the system-call tracing facility ktrace(2).
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@ -11,7 +11,7 @@
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# device lines is present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
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#
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# $Id: GENERIC,v 1.34 1999/08/10 17:15:11 wpaul Exp $
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# $Id: GENERIC,v 1.35 1999/08/11 22:33:57 gallatin Exp $
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machine alpha
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cpu EV4
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@ -127,7 +127,7 @@ pseudo-device loop
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pseudo-device ether
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pseudo-device sl 1
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pseudo-device ppp 1
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pseudo-device tun 1
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pseudo-device tun
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pseudo-device pty
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# KTRACE enables the system-call tracing facility ktrace(2).
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@ -11,7 +11,7 @@
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# device lines is present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
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#
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# $Id: SIMOS,v 1.4 1999/06/15 13:14:29 des Exp $
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# $Id: SIMOS,v 1.5 1999/08/08 19:28:56 phk Exp $
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machine "alpha"
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cpu "EV5"
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@ -63,7 +63,7 @@ pseudo-device loop
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pseudo-device ether
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pseudo-device sl 1
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pseudo-device ppp 1
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pseudo-device tun 1
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pseudo-device tun
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pseudo-device pty
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pseudo-device gzip # Exec gzipped a.out's
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@ -15,7 +15,7 @@
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# device lines is also present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
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#
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# $Id: GENERIC,v 1.180 1999/08/08 19:28:57 phk Exp $
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# $Id: GENERIC,v 1.181 1999/08/15 09:38:20 phk Exp $
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machine i386
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cpu I386_CPU
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@ -195,7 +195,7 @@ pseudo-device loop # Network loopback
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pseudo-device ether # Ethernet support
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pseudo-device sl 1 # Kernel SLIP
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pseudo-device ppp 1 # Kernel PPP
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pseudo-device tun 1 # Packet tunnel, for ppp(1)
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pseudo-device tun # Packet tunnel, for ppp(1)
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pseudo-device pty # Pseudo-ttys (telnet etc)
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pseudo-device gzip # Exec gzipped a.out's
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@ -2,7 +2,7 @@
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# LINT -- config file for checking all the sources, tries to pull in
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# as much of the source tree as it can.
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#
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# $Id: LINT,v 1.625 1999/08/08 19:28:57 phk Exp $
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# $Id: LINT,v 1.626 1999/08/15 09:38:20 phk Exp $
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#
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# NB: You probably don't want to try running a kernel built from this
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# file. Instead, you should start from GENERIC, and add options from
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@ -404,7 +404,7 @@ pseudo-device sppp #Generic Synchronous PPP
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pseudo-device loop #Network loopback device
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pseudo-device bpf #Berkeley packet filter
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pseudo-device disc #Discard device
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pseudo-device tun 1 #Tunnel driver (ppp(8), nos-tun(8))
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pseudo-device tun #Tunnel driver (ppp(8), nos-tun(8))
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pseudo-device sl 2 #Serial Line IP
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pseudo-device ppp 2 #Point-to-point protocol
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pseudo-device streams
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@ -15,7 +15,7 @@
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# device lines is also present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
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#
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# $Id: GENERIC,v 1.180 1999/08/08 19:28:57 phk Exp $
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# $Id: GENERIC,v 1.181 1999/08/15 09:38:20 phk Exp $
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machine i386
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cpu I386_CPU
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@ -195,7 +195,7 @@ pseudo-device loop # Network loopback
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pseudo-device ether # Ethernet support
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pseudo-device sl 1 # Kernel SLIP
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pseudo-device ppp 1 # Kernel PPP
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pseudo-device tun 1 # Packet tunnel, for ppp(1)
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pseudo-device tun # Packet tunnel, for ppp(1)
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pseudo-device pty # Pseudo-ttys (telnet etc)
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pseudo-device gzip # Exec gzipped a.out's
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@ -2,7 +2,7 @@
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# LINT -- config file for checking all the sources, tries to pull in
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# as much of the source tree as it can.
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#
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# $Id: LINT,v 1.625 1999/08/08 19:28:57 phk Exp $
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# $Id: LINT,v 1.626 1999/08/15 09:38:20 phk Exp $
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#
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# NB: You probably don't want to try running a kernel built from this
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# file. Instead, you should start from GENERIC, and add options from
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@ -404,7 +404,7 @@ pseudo-device sppp #Generic Synchronous PPP
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pseudo-device loop #Network loopback device
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pseudo-device bpf #Berkeley packet filter
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pseudo-device disc #Discard device
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pseudo-device tun 1 #Tunnel driver (ppp(8), nos-tun(8))
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pseudo-device tun #Tunnel driver (ppp(8), nos-tun(8))
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pseudo-device sl 2 #Serial Line IP
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pseudo-device ppp 2 #Point-to-point protocol
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pseudo-device streams
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@ -2,7 +2,7 @@
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# LINT -- config file for checking all the sources, tries to pull in
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# as much of the source tree as it can.
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#
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# $Id: LINT,v 1.625 1999/08/08 19:28:57 phk Exp $
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# $Id: LINT,v 1.626 1999/08/15 09:38:20 phk Exp $
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#
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# NB: You probably don't want to try running a kernel built from this
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# file. Instead, you should start from GENERIC, and add options from
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@ -404,7 +404,7 @@ pseudo-device sppp #Generic Synchronous PPP
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pseudo-device loop #Network loopback device
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pseudo-device bpf #Berkeley packet filter
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pseudo-device disc #Discard device
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pseudo-device tun 1 #Tunnel driver (ppp(8), nos-tun(8))
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pseudo-device tun #Tunnel driver (ppp(8), nos-tun(8))
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pseudo-device sl 2 #Serial Line IP
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pseudo-device ppp 2 #Point-to-point protocol
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pseudo-device streams
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@ -12,7 +12,7 @@
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# device lines is present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
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#
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# $Id: PCCARD,v 1.15 1999/08/08 19:28:59 phk Exp $
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# $Id: PCCARD,v 1.16 1999/08/15 09:38:20 phk Exp $
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machine i386
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cpu I386_CPU
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@ -191,7 +191,7 @@ pseudo-device loop # Network loopback
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pseudo-device ether # Ethernet support
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pseudo-device sl 1 # Kernel SLIP
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pseudo-device ppp 1 # Kernel PPP
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pseudo-device tun 1 # Packet tunnel, for ppp(1)
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pseudo-device tun # Packet tunnel, for ppp(1)
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pseudo-device pty # Pseudo-ttys (telnet etc)
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pseudo-device gzip # Exec gzipped a.out's
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126
sys/net/if_tun.c
126
sys/net/if_tun.c
@ -15,9 +15,7 @@
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*/
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#include "tun.h"
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#if NTUN > 0
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#include "opt_devfs.h"
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#include "opt_inet.h"
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#include <sys/param.h>
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@ -33,12 +31,10 @@
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#include <sys/filedesc.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#ifdef DEVFS
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#include <sys/devfsext.h>
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#endif /*DEVFS*/
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#include <sys/conf.h>
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#include <sys/uio.h>
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#include <sys/vnode.h>
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#include <sys/malloc.h>
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#include <net/if.h>
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#include <net/netisr.h>
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@ -62,19 +58,21 @@
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#include <net/if_tunvar.h>
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#include <net/if_tun.h>
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static MALLOC_DEFINE(M_TUN, "tun", "Tunnel Interface");
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static void tunattach __P((void *));
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PSEUDO_SET(tunattach, if_tun);
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static void tuncreate __P((dev_t dev));
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#define TUNDEBUG if (tundebug) printf
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static int tundebug = 0;
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SYSCTL_INT(_debug, OID_AUTO, if_tun_debug, CTLFLAG_RW, &tundebug, 0, "");
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static struct tun_softc tunctl[NTUN];
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static int tunoutput __P((struct ifnet *, struct mbuf *, struct sockaddr *,
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struct rtentry *rt));
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static int tunifioctl __P((struct ifnet *, u_long, caddr_t));
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static int tuninit __P((int));
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static int tuninit __P((struct ifnet *));
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static d_open_t tunopen;
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static d_close_t tunclose;
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@ -106,48 +104,42 @@ static struct cdevsw tun_cdevsw = {
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/* bmaj */ -1
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};
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static int tun_devsw_installed;
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#ifdef DEVFS
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static void *tun_devfs_token[NTUN];
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#endif
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#define minor_val(n) ((((n) & ~0xff) << 8) | ((n) & 0xff))
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#define dev_val(n) (((n) >> 8) | ((n) & 0xff))
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static void
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tunattach(dummy)
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void *dummy;
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{
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register int i;
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cdevsw_add(&tun_cdevsw);
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}
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static void
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tuncreate(dev)
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dev_t dev;
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{
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struct tun_softc *sc;
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struct ifnet *ifp;
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if ( tun_devsw_installed )
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return;
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cdevsw_add(&tun_cdevsw);
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tun_devsw_installed = 1;
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for ( i = 0; i < NTUN; i++ ) {
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#ifdef DEVFS
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tun_devfs_token[i] = devfs_add_devswf(&tun_cdevsw, minor_val(i),
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DV_CHR, UID_UUCP,
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GID_DIALER, 0600,
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"tun%d", i);
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#endif
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tunctl[i].tun_flags = TUN_INITED;
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dev = make_dev(&tun_cdevsw, minor(dev),
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UID_UUCP, GID_DIALER, 0600, "tun%d", lminor(dev));
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ifp = &tunctl[i].tun_if;
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ifp->if_unit = i;
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ifp->if_name = "tun";
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ifp->if_mtu = TUNMTU;
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ifp->if_ioctl = tunifioctl;
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ifp->if_output = tunoutput;
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ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
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ifp->if_snd.ifq_maxlen = ifqmaxlen;
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if_attach(ifp);
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MALLOC(sc, struct tun_softc *, sizeof(*sc), M_TUN, M_WAITOK);
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bzero(sc, sizeof *sc);
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sc->tun_flags = TUN_INITED;
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ifp = &sc->tun_if;
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ifp->if_unit = lminor(dev);
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ifp->if_name = "tun";
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ifp->if_mtu = TUNMTU;
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ifp->if_ioctl = tunifioctl;
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ifp->if_output = tunoutput;
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ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
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ifp->if_snd.ifq_maxlen = ifqmaxlen;
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ifp->if_softc = sc;
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if_attach(ifp);
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#if NBPF > 0
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bpfattach(ifp, DLT_NULL, sizeof(u_int));
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bpfattach(ifp, DLT_NULL, sizeof(u_int));
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#endif
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}
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dev->si_drv1 = sc;
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}
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/*
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@ -162,15 +154,17 @@ tunopen(dev, flag, mode, p)
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{
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struct ifnet *ifp;
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struct tun_softc *tp;
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register int unit, error;
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register int error;
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error = suser(p);
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if (error)
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return (error);
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if ((unit = dev_val(minor(dev))) >= NTUN)
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return (ENXIO);
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tp = &tunctl[unit];
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tp = dev->si_drv1;
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if (!tp) {
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tuncreate(dev);
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tp = dev->si_drv1;
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}
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if (tp->tun_flags & TUN_OPEN)
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return EBUSY;
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tp->tun_pid = p->p_pid;
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@ -191,11 +185,14 @@ tunclose(dev, foo, bar, p)
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int bar;
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struct proc *p;
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{
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register int unit = dev_val(minor(dev)), s;
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struct tun_softc *tp = &tunctl[unit];
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struct ifnet *ifp = &tp->tun_if;
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register int s;
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struct tun_softc *tp;
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struct ifnet *ifp;
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struct mbuf *m;
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tp = dev->si_drv1;
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ifp = &tp->tun_if;
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tp->tun_flags &= ~TUN_OPEN;
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tp->tun_pid = 0;
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@ -238,11 +235,10 @@ tunclose(dev, foo, bar, p)
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}
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static int
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tuninit(unit)
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int unit;
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tuninit(ifp)
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struct ifnet *ifp;
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{
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struct tun_softc *tp = &tunctl[unit];
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struct ifnet *ifp = &tp->tun_if;
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struct tun_softc *tp = ifp->if_softc;
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register struct ifaddr *ifa;
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TUNDEBUG("%s%d: tuninit\n", ifp->if_name, ifp->if_unit);
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@ -279,7 +275,7 @@ tunifioctl(ifp, cmd, data)
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caddr_t data;
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{
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struct ifreq *ifr = (struct ifreq *)data;
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struct tun_softc *tp = &tunctl[ifp->if_unit];
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struct tun_softc *tp = ifp->if_softc;
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struct ifstat *ifs;
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int error = 0, s;
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@ -292,12 +288,12 @@ tunifioctl(ifp, cmd, data)
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"\tOpened by PID %d\n", tp->tun_pid);
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return(0);
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case SIOCSIFADDR:
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tuninit(ifp->if_unit);
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tuninit(ifp);
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TUNDEBUG("%s%d: address set\n",
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ifp->if_name, ifp->if_unit);
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break;
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case SIOCSIFDSTADDR:
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tuninit(ifp->if_unit);
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tuninit(ifp);
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TUNDEBUG("%s%d: destination address set\n",
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ifp->if_name, ifp->if_unit);
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break;
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@ -328,7 +324,7 @@ tunoutput(ifp, m0, dst, rt)
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struct sockaddr *dst;
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struct rtentry *rt;
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{
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struct tun_softc *tp = &tunctl[ifp->if_unit];
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struct tun_softc *tp = ifp->if_softc;
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int s;
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TUNDEBUG ("%s%d: tunoutput\n", ifp->if_name, ifp->if_unit);
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@ -428,8 +424,8 @@ tunioctl(dev, cmd, data, flag, p)
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int flag;
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struct proc *p;
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{
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int unit = dev_val(minor(dev)), s;
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struct tun_softc *tp = &tunctl[unit];
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int s;
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struct tun_softc *tp = dev->si_drv1;
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struct tuninfo *tunp;
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switch (cmd) {
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@ -527,8 +523,7 @@ tunread(dev, uio, flag)
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struct uio *uio;
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int flag;
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{
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int unit = dev_val(minor(dev));
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struct tun_softc *tp = &tunctl[unit];
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struct tun_softc *tp = dev->si_drv1;
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struct ifnet *ifp = &tp->tun_if;
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struct mbuf *m, *m0;
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int error=0, len, s;
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@ -585,8 +580,8 @@ tunwrite(dev, uio, flag)
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struct uio *uio;
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int flag;
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{
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int unit = dev_val(minor(dev));
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struct ifnet *ifp = &tunctl[unit].tun_if;
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struct tun_softc *tp = dev->si_drv1;
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struct ifnet *ifp = &tp->tun_if;
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struct mbuf *top, **mp, *m;
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int error=0, s, tlen, mlen;
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@ -682,8 +677,8 @@ tunpoll(dev, events, p)
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int events;
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struct proc *p;
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{
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int unit = dev_val(minor(dev)), s;
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struct tun_softc *tp = &tunctl[unit];
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int s;
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struct tun_softc *tp = dev->si_drv1;
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struct ifnet *ifp = &tp->tun_if;
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int revents = 0;
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@ -707,6 +702,3 @@ tunpoll(dev, events, p)
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splx(s);
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return (revents);
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}
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#endif /* NTUN */
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@ -11,7 +11,7 @@
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# device lines is present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
|
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#
|
||||
# $Id: GENERIC98,v 1.82 1999/08/08 19:28:59 phk Exp $
|
||||
# $Id: GENERIC98,v 1.83 1999/08/15 09:38:21 phk Exp $
|
||||
|
||||
# GENERIC98 -- Generic PC98 machine with WD/SCSI disks
|
||||
|
||||
@ -247,7 +247,7 @@ pseudo-device loop
|
||||
pseudo-device ether
|
||||
pseudo-device sl 1
|
||||
pseudo-device ppp 1
|
||||
pseudo-device tun 1
|
||||
pseudo-device tun
|
||||
pseudo-device pty
|
||||
pseudo-device gzip # Exec gzipped a.out's
|
||||
|
||||
|
||||
@ -11,7 +11,7 @@
|
||||
# device lines is present in the ./LINT configuration file. If you are
|
||||
# in doubt as to the purpose or necessity of a line, check first in LINT.
|
||||
#
|
||||
# $Id: GENERIC98,v 1.82 1999/08/08 19:28:59 phk Exp $
|
||||
# $Id: GENERIC98,v 1.83 1999/08/15 09:38:21 phk Exp $
|
||||
|
||||
# GENERIC98 -- Generic PC98 machine with WD/SCSI disks
|
||||
|
||||
@ -247,7 +247,7 @@ pseudo-device loop
|
||||
pseudo-device ether
|
||||
pseudo-device sl 1
|
||||
pseudo-device ppp 1
|
||||
pseudo-device tun 1
|
||||
pseudo-device tun
|
||||
pseudo-device pty
|
||||
pseudo-device gzip # Exec gzipped a.out's
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user