2 * System-dependent procedures for pppd under Solaris 2.
4 * Parts re-written by Adi Masputra <adi.masputra@sun.com>, based on
5 * the original sys-svr4.c
7 * Copyright (c) 2000 by Sun Microsystems, Inc.
10 * Permission to use, copy, modify, and distribute this software and its
11 * documentation is hereby granted, provided that the above copyright
12 * notice appears in all copies.
14 * SUN MAKES NO REPRESENTATION OR WARRANTIES ABOUT THE SUITABILITY OF
15 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
16 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
17 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
18 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
19 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES
21 * Copyright (c) 1995-2002 Paul Mackerras. All rights reserved.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
27 * 1. Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
30 * 2. The name(s) of the authors of this software must not be used to
31 * endorse or promote products derived from this software without
32 * prior written permission.
34 * 3. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by Paul Mackerras
37 * <paulus@samba.org>".
39 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
40 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
41 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
42 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
43 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
44 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
45 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
47 * Derived from main.c and pppd.h, which are:
49 * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
51 * Redistribution and use in source and binary forms, with or without
52 * modification, are permitted provided that the following conditions
55 * 1. Redistributions of source code must retain the above copyright
56 * notice, this list of conditions and the following disclaimer.
58 * 2. Redistributions in binary form must reproduce the above copyright
59 * notice, this list of conditions and the following disclaimer in
60 * the documentation and/or other materials provided with the
63 * 3. The name "Carnegie Mellon University" must not be used to
64 * endorse or promote products derived from this software without
65 * prior written permission. For permission or any legal
66 * details, please contact
67 * Office of Technology Transfer
68 * Carnegie Mellon University
70 * Pittsburgh, PA 15213-3890
71 * (412) 268-4387, fax: (412) 268-7395
72 * tech-transfer@andrew.cmu.edu
74 * 4. Redistributions of any form whatsoever must retain the following
76 * "This product includes software developed by Computing Services
77 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
79 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
80 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
81 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
82 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
83 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
84 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
85 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
88 #define RCSID "$Id: sys-solaris.c,v 1.13 2004/11/04 10:02:26 paulus Exp $"
101 #include <sys/termiox.h>
106 #include <sys/types.h>
107 #include <sys/ioccom.h>
108 #include <sys/stream.h>
109 #include <sys/stropts.h>
110 #include <sys/socket.h>
111 #include <sys/sockio.h>
112 #include <sys/sysmacros.h>
113 #include <sys/systeminfo.h>
114 #include <sys/dlpi.h>
115 #include <sys/stat.h>
116 #include <sys/mkdev.h>
118 #include <net/if_arp.h>
119 #include <net/route.h>
120 #include <net/ppp_defs.h>
121 #include <net/pppio.h>
122 #include <netinet/in.h>
124 #include <sys/tihdr.h>
125 #include <sys/tiuser.h>
126 #include <inet/common.h>
127 #include <inet/mib2.h>
128 #include <sys/ethernet.h>
137 #if !defined(PPP_DRV_NAME)
138 #define PPP_DRV_NAME "ppp"
139 #endif /* !defined(PPP_DRV_NAME) */
141 #if !defined(PPP_DEV_NAME)
142 #define PPP_DEV_NAME "/dev/" PPP_DRV_NAME
143 #endif /* !defined(PPP_DEV_NAME) */
145 #if !defined(AHDLC_MOD_NAME)
146 #define AHDLC_MOD_NAME "ppp_ahdl"
147 #endif /* !defined(AHDLC_MOD_NAME) */
149 #if !defined(COMP_MOD_NAME)
150 #define COMP_MOD_NAME "ppp_comp"
151 #endif /* !defined(COMP_MOD_NAME) */
153 #if !defined(IP_DEV_NAME)
154 #define IP_DEV_NAME "/dev/ip"
155 #endif /* !defined(IP_DEV_NAME) */
157 #if !defined(IP_MOD_NAME)
158 #define IP_MOD_NAME "ip"
159 #endif /* !defined(IP_MOD_NAME) */
161 #if !defined(UDP_DEV_NAME) && defined(SOL2)
162 #define UDP_DEV_NAME "/dev/udp"
163 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
165 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
166 #define UDP6_DEV_NAME "/dev/udp6"
167 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
169 static const char rcsid[] = RCSID;
173 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
174 * under. It is used in place of "/dev/ip" since STREAMS will not let
175 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
176 * driver at the bottom of the tunneling interfaces stream.
178 static char *mux_dev_name = UDP_DEV_NAME;
180 static char *mux_dev_name = IP_DEV_NAME;
183 static int fdmuxid = -1;
185 static int ipmuxid = -1;
187 #if defined(INET6) && defined(SOL2)
188 static int ip6fd; /* IP file descriptor */
189 static int ip6muxid = -1; /* Multiplexer file descriptor */
190 static int if6_is_up = 0; /* IPv6 interface has been marked up */
192 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
193 s->sin6_addr.s6_addr32[0] = htonl(as); \
194 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
195 s->sin6_family = AF_INET6; \
196 l.lifr_addr.ss_family = AF_INET6; \
197 l.lifr_addrlen = 10; \
198 l.lifr_addr = laddr; \
201 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
202 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
204 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
205 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
207 #endif /* defined(INET6) && defined(SOL2) */
209 #if defined(INET6) && defined(SOL2)
210 static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */
212 static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */
213 #define MAXIFS 256 /* Max # of interfaces */
214 #endif /* defined(INET6) && defined(SOL2) */
216 static int restore_term;
217 static struct termios inittermios;
219 static struct termiox inittermiox;
220 static int termiox_ok;
222 static struct winsize wsinfo; /* Initial window size info */
223 static pid_t tty_sid; /* original session ID for terminal */
225 extern u_char inpacket_buf[]; /* borrowed from main.c */
227 #define MAX_POLLFDS 32
228 static struct pollfd pollfds[MAX_POLLFDS];
229 static int n_pollfds;
231 static int link_mtu, link_mru;
234 static int tty_nmodules;
235 static char tty_modules[NMODULES][FMNAMESZ+1];
236 static int tty_npushed;
238 static int if_is_up; /* Interface has been marked up */
239 static u_int32_t remote_addr; /* IP address of peer */
240 static u_int32_t default_route_gateway; /* Gateway for default route added */
241 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
243 /* Prototypes for procedures local to this file. */
244 static int translate_speed __P((int));
245 static int baud_rate_of __P((int));
246 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
247 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
248 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
249 static int dlpi_attach __P((int, int));
250 static int dlpi_info_req __P((int));
251 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
252 static int strioctl __P((int, int, void *, int, int));
256 * sifppa - Sets interface ppa
258 * without setting the ppa, ip module will return EINVAL upon setting the
259 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
260 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
261 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
262 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
263 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
264 * is required because the ppp DLPI provider advertises itself as
265 * a DLPI style 2 type, which requires a point of attachment to be
266 * specified. The only way the user can specify a point of attachment
267 * is via SIOCSLIFNAME or IF_UNITSEL.
269 * Such changes in the behavior of ip module was made to meet new or
270 * evolving standards requirements.
278 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
282 #if defined(SOL2) && defined(INET6)
284 * get_first_ethernet - returns the first Ethernet interface name found in
285 * the system, or NULL if none is found
287 * NOTE: This is the lifreq version (Solaris 8 and above)
294 struct lifreq *plifreq;
296 int fd, num_ifs, i, found;
300 fd = socket(AF_INET, SOCK_DGRAM, 0);
306 * Find out how many interfaces are running
308 lifn.lifn_family = AF_UNSPEC;
309 lifn.lifn_flags = LIFC_NOXMIT;
310 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
312 error("could not determine number of interfaces: %m");
316 num_ifs = lifn.lifn_count;
317 req_size = num_ifs * sizeof(struct lifreq);
318 req = malloc(req_size);
321 error("out of memory");
326 * Get interface configuration info for all interfaces
328 lifc.lifc_family = AF_UNSPEC;
329 lifc.lifc_flags = LIFC_NOXMIT;
330 lifc.lifc_len = req_size;
332 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
335 error("SIOCGLIFCONF: %m");
340 * And traverse each interface to look specifically for the first
341 * occurence of an Ethernet interface which has been marked up
343 plifreq = lifc.lifc_req;
345 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
347 if (strchr(plifreq->lifr_name, ':') != NULL)
350 memset(&lifr, 0, sizeof(lifr));
351 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
352 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
355 error("SIOCGLIFFLAGS: %m");
358 fl = lifr.lifr_flags;
360 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
361 != (IFF_UP | IFF_BROADCAST))
371 strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
372 return (char *)first_ether_name;
378 * get_first_ethernet - returns the first Ethernet interface name found in
379 * the system, or NULL if none is found
381 * NOTE: This is the ifreq version (before Solaris 8).
387 struct ifreq *pifreq;
389 int fd, num_ifs, i, found;
393 fd = socket(AF_INET, SOCK_DGRAM, 0);
399 * Find out how many interfaces are running
401 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
405 req_size = num_ifs * sizeof(struct ifreq);
406 req = malloc(req_size);
409 error("out of memory");
414 * Get interface configuration info for all interfaces
416 ifc.ifc_len = req_size;
418 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
421 error("SIOCGIFCONF: %m");
426 * And traverse each interface to look specifically for the first
427 * occurence of an Ethernet interface which has been marked up
429 pifreq = ifc.ifc_req;
431 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
433 if (strchr(pifreq->ifr_name, ':') != NULL)
436 memset(&ifr, 0, sizeof(ifr));
437 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
438 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
441 error("SIOCGIFFLAGS: %m");
446 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
447 != (IFF_UP | IFF_BROADCAST))
457 strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name));
458 return (char *)first_ether_name;
462 #endif /* defined(SOL2) && defined(INET6) */
466 * get_if_hwaddr - get the hardware address for the specified
467 * network interface device.
470 get_if_hwaddr(u_char *addr, char *if_name)
472 struct sockaddr s_eth_addr;
473 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
479 * Send DL_INFO_REQ to the driver to solicit its MAC address
481 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
482 error("could not obtain hardware address for %s", if_name);
486 memcpy(addr, eth_addr->ether_addr_octet, 6);
491 #if defined(SOL2) && defined(INET6)
493 * slifname - Sets interface ppa and flags
495 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
496 * be set in order to declare this as an IPv6 interface
506 memset(&lifr, 0, sizeof(lifr));
507 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
511 lifr.lifr_flags |= IFF_IPV6;
512 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
514 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
516 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
526 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
528 * walks the list of valid ethernet interfaces, and convert the first
529 * found 48-bit MAC address into EUI 64. caller also assumes that
530 * the system has a properly configured Ethernet interface for this
531 * function to return non-zero.
534 ether_to_eui64(eui64_t *p_eui64)
536 struct sockaddr s_eth_addr;
537 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
540 if ((if_name = get_first_ethernet()) == NULL) {
541 error("no persistent id can be found");
546 * Send DL_INFO_REQ to the driver to solicit its MAC address
548 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
549 error("could not obtain hardware address for %s", if_name);
554 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
556 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
557 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
558 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
559 p_eui64->e8[3] = 0xFF;
560 p_eui64->e8[4] = 0xFE;
561 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
562 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
563 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
567 #endif /* defined(SOL2) && defined(INET6) */
570 * sys_init - System-dependent initialization.
577 #if defined(INET6) && defined(SOL2)
580 #endif /* defined(INET6) && defined(SOL2) */
583 union DL_primitives prim;
586 #endif /* !defined(SOL2) */
588 ipfd = open(mux_dev_name, O_RDWR, 0);
590 fatal("Couldn't open IP device: %m");
592 #if defined(INET6) && defined(SOL2)
593 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
595 fatal("Couldn't open IP device (2): %m");
596 #endif /* defined(INET6) && defined(SOL2) */
598 if (default_device && !notty)
599 tty_sid = getsid((pid_t)0);
601 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
603 fatal("Can't open %s: %m", PPP_DEV_NAME);
604 if (kdebugflag & 1) {
605 x = PPPDBG_LOG + PPPDBG_DRIVER;
606 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
609 /* Assign a new PPA and get its unit number. */
610 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
611 fatal("Can't create new PPP interface: %m");
615 * Since sys_init() is called prior to ifname being set in main(),
616 * we need to get the ifname now, otherwise slifname(), and others,
617 * will fail, or maybe, I should move them to a later point ?
618 * <adi.masputra@sun.com>
620 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
621 #endif /* defined(SOL2) */
623 * Open the ppp device again and link it under the ip multiplexor.
624 * IP will assign a unit number which hopefully is the same as ifunit.
625 * I don't know any way to be certain they will be the same. :-(
627 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
629 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
630 if (kdebugflag & 1) {
631 x = PPPDBG_LOG + PPPDBG_DRIVER;
632 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
635 #if defined(INET6) && defined(SOL2)
636 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
639 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
641 if (kdebugflag & 1) {
642 x = PPPDBG_LOG + PPPDBG_DRIVER;
643 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
645 #endif /* defined(INET6) && defined(SOL2) */
648 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
652 #endif /* defined(INET6) */
653 fatal("Can't push IP module: %m");
657 * Assign ppa according to the unit number returned by ppp device
658 * after plumbing is completed above.
660 if (sifppa(ifd, ifunit) < 0) {
664 #endif /* defined(INET6) */
665 fatal("Can't set ppa for unit %d: %m", ifunit);
670 * An IPv6 interface is created anyway, even when the user does not
671 * explicitly enable it. Note that the interface will be marked
672 * IPv6 during slifname().
674 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
677 fatal("Can't push IP module (2): %m");
681 * Assign ppa according to the unit number returned by ppp device
682 * after plumbing is completed above. In addition, mark the interface
683 * as an IPv6 interface.
685 if (slifname(i6fd, ifunit) < 0) {
688 fatal("Can't set ifname for unit %d: %m", ifunit);
690 #endif /* defined(INET6) */
692 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
697 #endif /* defined(INET6) */
698 fatal("Can't I_PLINK PPP device to IP: %m");
701 memset(&ifr, 0, sizeof(ifr));
702 sprintf(ifr.ifr_name, "%s", ifname);
703 ifr.ifr_ip_muxid = ipmuxid;
706 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
707 * This is so that an arbitrary module can be inserted, or deleted,
708 * between ip module and the device driver without tearing down the
709 * existing stream. Such feature requires the mux ids, which is set
710 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
712 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
713 ioctl(ipfd, I_PUNLINK, ipmuxid);
716 #endif /* defined(INET6) */
717 fatal("SIOCSIFMUXID: %m");
720 #else /* else if !defined(SOL2) */
722 if (dlpi_attach(ifd, ifunit) < 0 ||
723 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
725 fatal("Can't attach to ppp%d: %m", ifunit);
728 ipmuxid = ioctl(ipfd, I_LINK, ifd);
731 fatal("Can't link PPP device to IP: %m");
732 #endif /* defined(SOL2) */
734 #if defined(INET6) && defined(SOL2)
735 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
738 ioctl(ipfd, I_PUNLINK, ipmuxid);
739 fatal("Can't I_PLINK PPP device to IP (2): %m");
742 memset(&lifr, 0, sizeof(lifr));
743 sprintf(lifr.lifr_name, "%s", ifname);
744 lifr.lifr_ip_muxid = ip6muxid;
747 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
749 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
750 ioctl(ipfd, I_PUNLINK, ipmuxid);
751 ioctl(ip6fd, I_PUNLINK, ip6muxid);
752 fatal("Can't link PPP device to IP (2): %m");
754 #endif /* defined(INET6) && defined(SOL2) */
757 /* Set the interface name for the link. */
758 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
759 ifr.ifr_metric = ipmuxid;
760 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
761 fatal("Can't set interface name %s: %m", ifr.ifr_name);
762 #endif /* !defined(SOL2) */
768 * sys_cleanup - restore any system state we modified before exiting:
769 * mark the interface down, delete default route and/or proxy arp entry.
770 * This should call die() because it's called from die().
779 #endif /* defined(INET6) */
780 #endif /* defined(SOL2) */
782 #if defined(SOL2) && defined(INET6)
785 #endif /* defined(SOL2) && defined(INET6) */
788 if (default_route_gateway)
789 cifdefaultroute(0, default_route_gateway, default_route_gateway);
791 cifproxyarp(0, proxy_arp_addr);
794 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
795 * unlink and re-link the modules, causing the muxid to change.
797 memset(&ifr, 0, sizeof(ifr));
798 sprintf(ifr.ifr_name, "%s", ifname);
799 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
800 error("SIOCGIFFLAGS: %m");
804 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
805 error("SIOCGIFMUXID: %m");
809 ipmuxid = ifr.ifr_ip_muxid;
811 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
812 error("Can't I_PUNLINK PPP from IP: %m");
817 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
818 * unlink and re-link the modules, causing the muxid to change.
820 memset(&lifr, 0, sizeof(lifr));
821 sprintf(lifr.lifr_name, "%s", ifname);
822 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
823 error("SIOCGLIFFLAGS: %m");
827 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
828 error("SIOCGLIFMUXID: %m");
832 ip6muxid = lifr.lifr_ip_muxid;
834 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
835 error("Can't I_PUNLINK PPP from IP (2): %m");
837 #endif /* defined(INET6) */
838 #endif /* defined(SOL2) */
842 * sys_close - Clean up in a child process before execing.
848 #if defined(INET6) && defined(SOL2)
850 #endif /* defined(INET6) && defined(SOL2) */
856 * sys_check_options - check the options that the user specified
866 * daemon - Detach us from controlling terminal session.
869 daemon(nochdir, noclose)
870 int nochdir, noclose;
874 if ((pid = fork()) < 0)
877 exit(0); /* parent dies */
882 fclose(stdin); /* don't need stdin, stdout, stderr */
891 * ppp_available - check whether the system has any ppp interfaces
898 return stat(PPP_DEV_NAME, &buf) >= 0;
902 * any_compressions - see if compression is enabled or not
904 * In the STREAMS implementation of kernel-portion pppd,
905 * the comp STREAMS module performs the ACFC, PFC, as well
906 * CCP and VJ compressions. However, if the user has explicitly
907 * declare to not enable them from the command line, there is
908 * no point of having the comp module be pushed on the stream.
913 if ((!lcp_wantoptions[0].neg_accompression) &&
914 (!lcp_wantoptions[0].neg_pcompression) &&
915 (!ccp_protent.enabled_flag) &&
916 (!ipcp_wantoptions[0].neg_vj)) {
923 * tty_establish_ppp - Turn the serial port into a ppp interface.
926 tty_establish_ppp(fd)
931 /* Pop any existing modules off the tty stream. */
933 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
934 || strcmp(tty_modules[i], "ptem") == 0
935 || ioctl(fd, I_POP, 0) < 0)
939 /* Push the async hdlc module and the compressor module. */
943 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
944 error("Couldn't push PPP Async HDLC module: %m");
949 if (kdebugflag & 4) {
950 i = PPPDBG_LOG + PPPDBG_AHDLC;
951 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
954 * There's no need to push comp module if we don't intend
955 * to compress anything
957 if (any_compressions()) {
958 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
959 error("Couldn't push PPP compression module: %m");
964 if (kdebugflag & 2) {
966 if (any_compressions())
968 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
971 /* Link the serial port under the PPP multiplexor. */
972 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
973 error("Can't link tty to PPP mux: %m");
981 * tty_disestablish_ppp - Restore the serial port to normal operation.
982 * It attempts to reconstruct the stream with the previously popped
983 * modules. This shouldn't call die() because it's called from die().
986 tty_disestablish_ppp(fd)
992 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
994 error("Can't unlink tty from PPP mux: %m");
999 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
1001 for (i = tty_nmodules - 1; i >= 0; --i)
1002 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
1003 error("Couldn't restore tty module %s: %m",
1006 if (hungup && default_device && tty_sid > 0) {
1008 * If we have received a hangup, we need to send a SIGHUP
1009 * to the terminal's controlling process. The reason is
1010 * that the original stream head for the terminal hasn't
1011 * seen the M_HANGUP message (it went up through the ppp
1012 * driver to the stream head for our fd to /dev/ppp).
1014 kill(tty_sid, SIGHUP);
1020 * Check whether the link seems not to be 8-bit clean.
1028 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
1033 s = "bit 7 set to 1";
1036 s = "bit 7 set to 0";
1046 warn("Serial link is not 8-bit clean:");
1047 warn("All received characters had %s", s);
1052 * List of valid speeds.
1055 int speed_int, speed_val;
1124 { 115200, B115200 },
1127 { 153600, B153600 },
1130 { 230400, B230400 },
1133 { 307200, B307200 },
1136 { 460800, B460800 },
1142 * Translate from bits/second to a speed_t.
1145 translate_speed(bps)
1148 struct speed *speedp;
1152 for (speedp = speeds; speedp->speed_int; speedp++)
1153 if (bps == speedp->speed_int)
1154 return speedp->speed_val;
1155 warn("speed %d not supported", bps);
1160 * Translate from a speed_t to bits/second.
1166 struct speed *speedp;
1170 for (speedp = speeds; speedp->speed_int; speedp++)
1171 if (speed == speedp->speed_val)
1172 return speedp->speed_int;
1177 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1178 * at the requested speed, etc. If `local' is true, set CLOCAL
1179 * regardless of whether the modem option was specified.
1182 set_up_tty(fd, local)
1186 struct termios tios;
1187 #if !defined (CRTSCTS)
1188 struct termiox tiox;
1191 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1192 fatal("tcgetattr: %m");
1196 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1198 if (errno != ENOTTY)
1199 error("TCGETX: %m");
1203 if (!restore_term) {
1209 ioctl(fd, TIOCGWINSZ, &wsinfo);
1212 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1215 tios.c_cflag |= CRTSCTS;
1216 else if (crtscts < 0)
1217 tios.c_cflag &= ~CRTSCTS;
1219 if (crtscts != 0 && !termiox_ok) {
1220 error("Can't set RTS/CTS flow control");
1221 } else if (crtscts > 0) {
1222 tiox.x_hflag |= RTSXOFF|CTSXON;
1223 } else if (crtscts < 0) {
1224 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1228 tios.c_cflag |= CS8 | CREAD | HUPCL;
1229 if (local || !modem)
1230 tios.c_cflag |= CLOCAL;
1231 tios.c_iflag = IGNBRK | IGNPAR;
1234 tios.c_cc[VMIN] = 1;
1235 tios.c_cc[VTIME] = 0;
1237 if (crtscts == -2) {
1238 tios.c_iflag |= IXON | IXOFF;
1239 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1240 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1243 speed = translate_speed(inspeed);
1245 cfsetospeed(&tios, speed);
1246 cfsetispeed(&tios, speed);
1248 speed = cfgetospeed(&tios);
1250 * We can't proceed if the serial port speed is 0,
1251 * since that implies that the serial port is disabled.
1253 if ((speed == B0) && !sync_serial)
1254 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1257 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1258 fatal("tcsetattr: %m");
1261 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1262 error("TCSETXF: %m");
1266 baud_rate = inspeed = baud_rate_of(speed);
1272 * restore_tty - restore the terminal to the saved settings.
1279 if (!default_device) {
1281 * Turn off echoing, because otherwise we can get into
1282 * a loop with the tty and the modem echoing to each other.
1283 * We presume we are the sole user of this tty device, so
1284 * when we close it, it will revert to its defaults anyway.
1286 inittermios.c_lflag &= ~(ECHO | ECHONL);
1288 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1289 if (!hungup && errno != ENXIO)
1290 warn("tcsetattr: %m");
1292 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1293 if (!hungup && errno != ENXIO)
1294 error("TCSETXF: %m");
1298 ioctl(fd, TIOCSWINSZ, &wsinfo);
1304 * setdtr - control the DTR line on the serial port.
1305 * This is called from die(), so it shouldn't call die().
1311 int modembits = TIOCM_DTR;
1313 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1317 * open_loopback - open the device we use for getting packets
1318 * in demand mode. Under Solaris 2, we use our existing fd
1319 * to the ppp driver.
1328 * output - Output PPP packet.
1331 output(unit, p, len)
1340 dump_packet("sent", p, len);
1341 if (snoop_send_hook) snoop_send_hook(p, len);
1344 data.buf = (caddr_t) p;
1346 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1347 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1349 error("Couldn't send packet: %m");
1353 pfd.events = POLLOUT;
1354 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1360 * wait_input - wait until there is data available,
1361 * for the length of time specified by *timo (indefinite
1366 struct timeval *timo;
1370 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1371 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1376 * add_fd - add an fd to the set that wait_input waits for.
1383 for (n = 0; n < n_pollfds; ++n)
1384 if (pollfds[n].fd == fd)
1386 if (n_pollfds < MAX_POLLFDS) {
1387 pollfds[n_pollfds].fd = fd;
1388 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1391 error("Too many inputs!");
1395 * remove_fd - remove an fd from the set that wait_input waits for.
1402 for (n = 0; n < n_pollfds; ++n) {
1403 if (pollfds[n].fd == fd) {
1404 while (++n < n_pollfds)
1405 pollfds[n-1] = pollfds[n];
1414 * wait_loop_output - wait until there is data available on the
1415 * loopback, for the length of time specified by *timo (indefinite
1419 wait_loop_output(timo)
1420 struct timeval *timo;
1426 * wait_time - wait for a given length of time or until a
1427 * signal is received.
1431 struct timeval *timo;
1435 n = select(0, NULL, NULL, NULL, timo);
1436 if (n < 0 && errno != EINTR)
1437 fatal("select: %m");
1443 * read_packet - get a PPP packet from the serial device.
1449 struct strbuf ctrl, data;
1451 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1454 data.maxlen = PPP_MRU + PPP_HDRLEN;
1455 data.buf = (caddr_t) buf;
1456 ctrl.maxlen = sizeof(ctrlbuf);
1457 ctrl.buf = (caddr_t) ctrlbuf;
1459 len = getmsg(pppfd, &ctrl, &data, &flags);
1461 if (errno == EAGAIN || errno == EINTR)
1463 fatal("Error reading packet: %m");
1470 * Got a M_PROTO or M_PCPROTO message. Interpret it
1471 * as a DLPI primitive??
1474 dbglog("got dlpi prim 0x%x, len=%d",
1475 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1481 * get_loop_output - get outgoing packets from the ppp device,
1482 * and detect when we want to bring the real link up.
1483 * Return value is 1 if we need to bring up the link, 0 otherwise.
1491 while ((len = read_packet(inpacket_buf)) > 0) {
1492 if (loop_frame(inpacket_buf, len))
1499 * netif_set_mtu - set the MTU on the PPP network interface.
1502 netif_set_mtu(unit, mtu)
1506 #if defined(INET6) && defined(SOL2)
1509 #endif /* defined(INET6) && defined(SOL2) */
1511 memset(&ifr, 0, sizeof(ifr));
1512 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1513 ifr.ifr_metric = link_mtu;
1514 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1515 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1518 #if defined(INET6) && defined(SOL2)
1519 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1521 error("Couldn't open IPv6 socket: %m");
1523 memset(&lifr, 0, sizeof(lifr));
1524 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1525 lifr.lifr_mtu = link_mtu;
1526 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1528 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1531 #endif /* defined(INET6) && defined(SOL2) */
1535 * tty_send_config - configure the transmit characteristics of
1536 * the ppp interface.
1539 tty_send_config(mtu, asyncmap, pcomp, accomp)
1547 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1548 if (hungup && errno == ENXIO) {
1552 error("Couldn't set MTU: %m");
1556 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1557 error("Couldn't set transmit ACCM: %m");
1559 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1560 cf[1] = COMP_PROT | COMP_AC;
1561 if (any_compressions() &&
1562 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1563 error("Couldn't set prot/AC compression: %m");
1568 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1578 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1579 if (!hungup || errno != ENXIO)
1580 warn("Couldn't set extended ACCM: %m");
1585 * tty_recv_config - configure the receive-side characteristics of
1586 * the ppp interface.
1589 tty_recv_config(mru, asyncmap, pcomp, accomp)
1597 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1598 if (hungup && errno == ENXIO) {
1602 error("Couldn't set MRU: %m");
1606 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1607 error("Couldn't set receive ACCM: %m");
1609 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1610 cf[1] = DECOMP_PROT | DECOMP_AC;
1611 if (any_compressions() &&
1612 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1613 error("Couldn't set prot/AC decompression: %m");
1618 * ccp_test - ask kernel whether a given compression method
1619 * is acceptable for use.
1622 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1623 int unit, opt_len, for_transmit;
1626 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1627 opt_ptr, opt_len, 0) >= 0)
1629 return (errno == ENOSR)? 0: -1;
1633 * ccp_flags_set - inform kernel about the current state of CCP.
1636 ccp_flags_set(unit, isopen, isup)
1637 int unit, isopen, isup;
1641 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1642 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1643 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1644 if (!hungup || errno != ENXIO)
1645 error("Couldn't set kernel CCP state: %m");
1650 * get_idle_time - return how long the link has been idle.
1653 get_idle_time(u, ip)
1655 struct ppp_idle *ip;
1657 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1661 * get_ppp_stats - return statistics for the link.
1664 get_ppp_stats(u, stats)
1666 struct pppd_stats *stats;
1671 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1672 error("Couldn't get link statistics: %m");
1675 stats->bytes_in = s.p.ppp_ibytes;
1676 stats->bytes_out = s.p.ppp_obytes;
1677 stats->pkts_in = s.p.ppp_ipackets;
1678 stats->pkts_out = s.p.ppp_opackets;
1684 * set_filters - transfer the pass and active filters to the kernel.
1687 set_filters(pass, active)
1688 struct bpf_program *pass, *active;
1692 if (pass->bf_len > 0) {
1693 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1694 sizeof(struct bpf_program), 0) < 0) {
1695 error("Couldn't set pass-filter in kernel: %m");
1699 if (active->bf_len > 0) {
1700 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1701 sizeof(struct bpf_program), 0) < 0) {
1702 error("Couldn't set active-filter in kernel: %m");
1711 * ccp_fatal_error - returns 1 if decompression was disabled as a
1712 * result of an error detected after decompression of a packet,
1713 * 0 otherwise. This is necessary because of patent nonsense.
1716 ccp_fatal_error(unit)
1722 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1723 if (errno != ENXIO && errno != EINVAL)
1724 error("Couldn't get compression flags: %m");
1727 return cf[0] & CCP_FATALERROR;
1731 * sifvjcomp - config tcp header compression
1734 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1735 int u, vjcomp, xcidcomp, xmaxcid;
1741 maxcid[0] = xcidcomp;
1742 maxcid[1] = 15; /* XXX should be rmaxcid */
1743 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1744 error("Couldn't initialize VJ compression: %m");
1748 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1749 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1750 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1751 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1753 error("Couldn't enable VJ compression: %m");
1760 * sifup - Config the interface up and enable IP packets to pass.
1768 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1769 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1770 error("Couldn't mark interface up (get): %m");
1773 ifr.ifr_flags |= IFF_UP;
1774 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1775 error("Couldn't mark interface up (set): %m");
1783 * sifdown - Config the interface down and disable IP.
1793 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1794 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1795 error("Couldn't mark interface down (get): %m");
1798 ifr.ifr_flags &= ~IFF_UP;
1799 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1800 error("Couldn't mark interface down (set): %m");
1808 * sifnpmode - Set the mode for handling packets for a given NP.
1811 sifnpmode(u, proto, mode)
1819 npi[1] = (int) mode;
1820 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1821 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1827 #if defined(SOL2) && defined(INET6)
1829 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1838 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1843 memset(&lifr, 0, sizeof(lifr));
1844 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1845 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1850 lifr.lifr_flags |= IFF_UP;
1851 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1852 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1863 * sifdown - Config the IPv6 interface down and disable IPv6.
1872 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1876 memset(&lifr, 0, sizeof(lifr));
1877 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1878 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1883 lifr.lifr_flags &= ~IFF_UP;
1884 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1885 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1896 * sif6addr - Config the interface with an IPv6 link-local address
1904 struct sockaddr_storage laddr;
1905 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1908 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1912 memset(&lifr, 0, sizeof(lifr));
1913 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1916 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1917 * zero values, hence the interface token came to be zero too,
1918 * and without this, in.ndpd will complain
1920 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1921 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1927 * Set the interface address and destination address
1929 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1930 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1935 memset(&lifr, 0, sizeof(lifr));
1936 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1937 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1938 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1947 * cif6addr - Remove the IPv6 address from interface
1957 #endif /* defined(SOL2) && defined(INET6) */
1960 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1963 * sifaddr - Config the interface IP addresses and netmask.
1973 memset(&ifr, 0, sizeof(ifr));
1974 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1975 ifr.ifr_addr.sa_family = AF_INET;
1976 INET_ADDR(ifr.ifr_addr) = m;
1977 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1978 error("Couldn't set IP netmask: %m");
1981 ifr.ifr_addr.sa_family = AF_INET;
1982 INET_ADDR(ifr.ifr_addr) = o;
1983 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1984 error("Couldn't set local IP address: %m");
1989 * On some systems, we have to explicitly set the point-to-point
1990 * flag bit before we can set a destination address.
1992 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1993 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1994 ifr.ifr_flags |= IFF_POINTOPOINT;
1995 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1996 error("Couldn't mark interface pt-to-pt: %m");
2000 ifr.ifr_dstaddr.sa_family = AF_INET;
2001 INET_ADDR(ifr.ifr_dstaddr) = h;
2002 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2003 error("Couldn't set remote IP address: %m");
2012 * cifaddr - Clear the interface IP addresses, and delete routes
2013 * through the interface if possible.
2020 #if defined(__USLC__) /* was: #if 0 */
2021 cifroute(unit, ouraddr, hisaddr);
2023 notice("Removing ppp interface unit");
2024 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2025 error("Can't remove ppp interface unit: %m");
2036 * sifdefaultroute - assign a default route through the address given.
2039 sifdefaultroute(u, l, g)
2045 #if defined(__USLC__)
2046 g = l; /* use the local address as gateway */
2048 memset(&rt, 0, sizeof(rt));
2049 rt.rt_dst.sa_family = AF_INET;
2050 INET_ADDR(rt.rt_dst) = 0;
2051 rt.rt_gateway.sa_family = AF_INET;
2052 INET_ADDR(rt.rt_gateway) = g;
2053 rt.rt_flags = RTF_GATEWAY;
2055 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2056 error("Can't add default route: %m");
2060 default_route_gateway = g;
2065 * cifdefaultroute - delete a default route through the address given.
2068 cifdefaultroute(u, l, g)
2074 #if defined(__USLC__)
2075 g = l; /* use the local address as gateway */
2077 memset(&rt, 0, sizeof(rt));
2078 rt.rt_dst.sa_family = AF_INET;
2079 INET_ADDR(rt.rt_dst) = 0;
2080 rt.rt_gateway.sa_family = AF_INET;
2081 INET_ADDR(rt.rt_gateway) = g;
2082 rt.rt_flags = RTF_GATEWAY;
2084 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2085 error("Can't delete default route: %m");
2089 default_route_gateway = 0;
2094 * sifproxyarp - Make a proxy ARP entry for the peer.
2097 sifproxyarp(unit, hisaddr)
2101 struct arpreq arpreq;
2103 memset(&arpreq, 0, sizeof(arpreq));
2104 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2107 arpreq.arp_pa.sa_family = AF_INET;
2108 INET_ADDR(arpreq.arp_pa) = hisaddr;
2109 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2110 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2111 error("Couldn't set proxy ARP entry: %m");
2115 proxy_arp_addr = hisaddr;
2120 * cifproxyarp - Delete the proxy ARP entry for the peer.
2123 cifproxyarp(unit, hisaddr)
2127 struct arpreq arpreq;
2129 memset(&arpreq, 0, sizeof(arpreq));
2130 arpreq.arp_pa.sa_family = AF_INET;
2131 INET_ADDR(arpreq.arp_pa) = hisaddr;
2132 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2133 error("Couldn't delete proxy ARP entry: %m");
2142 * get_ether_addr - get the hardware address of an interface on the
2143 * the same subnet as ipaddr.
2148 get_ether_addr(ipaddr, hwaddr)
2150 struct sockaddr *hwaddr;
2152 struct ifreq *ifr, *ifend, ifreq;
2155 u_int32_t ina, mask;
2158 * Scan through the system's network interfaces.
2161 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2164 ifc.ifc_len = nif * sizeof(struct ifreq);
2165 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2166 if (ifc.ifc_buf == 0)
2168 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2169 warn("Couldn't get system interface list: %m");
2173 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2174 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2175 if (ifr->ifr_addr.sa_family != AF_INET)
2178 * Check that the interface is up, and not point-to-point or loopback.
2180 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2181 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2183 if ((ifreq.ifr_flags &
2184 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2185 != (IFF_UP|IFF_BROADCAST))
2188 * Get its netmask and check that it's on the right subnet.
2190 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2192 ina = INET_ADDR(ifr->ifr_addr);
2193 mask = INET_ADDR(ifreq.ifr_addr);
2194 if ((ipaddr & mask) == (ina & mask))
2199 warn("No suitable interface found for proxy ARP");
2204 info("found interface %s for proxy ARP", ifr->ifr_name);
2205 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2206 error("Couldn't get hardware address for %s", ifr->ifr_name);
2216 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2219 get_hw_addr_dlpi(name, hwaddr)
2221 struct sockaddr *hwaddr;
2224 int unit, iffd, adrlen;
2225 unsigned char *adrp;
2228 union DL_primitives prim;
2233 * We have to open the device and ask it for its hardware address.
2234 * First split apart the device name and unit.
2236 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2237 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2244 * Open the device and do a DLPI attach and phys_addr_req.
2246 iffd = open(ifdev, O_RDWR);
2248 error("Can't open %s: %m", ifdev);
2251 if (dlpi_attach(iffd, unit) < 0
2252 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2253 || dlpi_info_req(iffd) < 0
2254 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2259 adrlen = reply.prim.info_ack.dl_addr_length;
2260 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2262 #if DL_CURRENT_VERSION >= 2
2263 if (reply.prim.info_ack.dl_sap_length < 0)
2264 adrlen += reply.prim.info_ack.dl_sap_length;
2266 adrp += reply.prim.info_ack.dl_sap_length;
2269 hwaddr->sa_family = AF_UNSPEC;
2270 memcpy(hwaddr->sa_data, adrp, adrlen);
2275 * get_hw_addr - obtain the hardware address for a named interface.
2278 get_hw_addr(name, ina, hwaddr)
2281 struct sockaddr *hwaddr;
2283 /* New way - get the address by doing an arp request. */
2287 s = socket(AF_INET, SOCK_DGRAM, 0);
2290 memset(&req, 0, sizeof(req));
2291 req.arp_pa.sa_family = AF_INET;
2292 INET_ADDR(req.arp_pa) = ina;
2293 if (ioctl(s, SIOCGARP, &req) < 0) {
2294 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2297 *hwaddr = req.arp_ha;
2298 hwaddr->sa_family = AF_UNSPEC;
2304 dlpi_attach(fd, ppa)
2307 dl_attach_req_t req;
2310 req.dl_primitive = DL_ATTACH_REQ;
2312 buf.len = sizeof(req);
2313 buf.buf = (void *) &req;
2314 return putmsg(fd, &buf, NULL, RS_HIPRI);
2324 req.dl_primitive = DL_INFO_REQ;
2325 buf.len = sizeof(req);
2326 buf.buf = (void *) &req;
2327 return putmsg(fd, &buf, NULL, RS_HIPRI);
2331 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2332 union DL_primitives *reply;
2333 int fd, expected_prim, maxlen;
2340 * Use poll to wait for a message with a timeout.
2343 pfd.events = POLLIN | POLLPRI;
2345 n = poll(&pfd, 1, 1000);
2346 } while (n == -1 && errno == EINTR);
2353 buf.maxlen = maxlen;
2354 buf.buf = (void *) reply;
2356 if (getmsg(fd, &buf, NULL, &flags) < 0)
2359 if (buf.len < sizeof(ulong)) {
2361 dbglog("dlpi response short (len=%d)\n", buf.len);
2365 if (reply->dl_primitive == expected_prim)
2369 if (reply->dl_primitive == DL_ERROR_ACK) {
2370 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2371 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2372 reply->error_ack.dl_error_primitive);
2374 dbglog("dlpi unexpected response prim %x\n",
2375 reply->dl_primitive);
2383 * Return user specified netmask, modified by any mask we might determine
2384 * for address `addr' (in network byte order).
2385 * Here we scan through the system's list of interfaces, looking for
2386 * any non-point-to-point interfaces which might appear to be on the same
2387 * network as `addr'. If we find any, we OR in their netmask to the
2388 * user-specified netmask.
2394 u_int32_t mask, nmask, ina;
2395 struct ifreq *ifr, *ifend, ifreq;
2400 if (IN_CLASSA(addr)) /* determine network mask for address class */
2401 nmask = IN_CLASSA_NET;
2402 else if (IN_CLASSB(addr))
2403 nmask = IN_CLASSB_NET;
2405 nmask = IN_CLASSC_NET;
2406 /* class D nets are disallowed by bad_ip_adrs */
2407 mask = netmask | htonl(nmask);
2410 * Scan through the system's network interfaces.
2413 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2416 ifc.ifc_len = nif * sizeof(struct ifreq);
2417 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2418 if (ifc.ifc_buf == 0)
2420 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2421 warn("Couldn't get system interface list: %m");
2425 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2426 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2428 * Check the interface's internet address.
2430 if (ifr->ifr_addr.sa_family != AF_INET)
2432 ina = INET_ADDR(ifr->ifr_addr);
2433 if ((ntohl(ina) & nmask) != (addr & nmask))
2436 * Check that the interface is up, and not point-to-point or loopback.
2438 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2439 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2441 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2445 * Get its netmask and OR it into our mask.
2447 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2449 mask |= INET_ADDR(ifreq.ifr_addr);
2457 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2460 logwtmp(line, name, host)
2461 const char *line, *name, *host;
2463 static struct utmpx utmpx;
2467 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2468 strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id));
2469 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2470 utmpx.ut_pid = getpid();
2471 utmpx.ut_type = USER_PROCESS;
2473 utmpx.ut_type = DEAD_PROCESS;
2475 gettimeofday(&utmpx.ut_tv, NULL);
2476 updwtmpx("/var/adm/wtmpx", &utmpx);
2480 * get_host_seed - return the serial number of this machine.
2487 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2488 error("sysinfo: %m");
2491 return (int) strtoul(buf, NULL, 16);
2495 strioctl(fd, cmd, ptr, ilen, olen)
2496 int fd, cmd, ilen, olen;
2499 struct strioctl str;
2505 if (ioctl(fd, I_STR, &str) == -1)
2507 if (str.ic_len != olen)
2508 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2509 olen, str.ic_len, cmd);
2515 * lock - create a lock file for the named lock device
2518 #define LOCK_PREFIX "/var/spool/locks/LK."
2519 static char lock_file[40]; /* name of lock file created */
2529 if (stat(dev, &sbuf) < 0) {
2530 error("Can't get device number for %s: %m", dev);
2533 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2534 error("Can't lock %s: not a character device", dev);
2537 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2538 LOCK_PREFIX, major(sbuf.st_dev),
2539 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2541 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2543 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2544 /* Read the lock file to find out who has the device locked */
2545 n = read(fd, ascii_pid, 11);
2547 error("Can't read pid from lock file %s", lock_file);
2551 pid = atoi(ascii_pid);
2552 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2553 /* pid no longer exists - remove the lock file */
2554 if (unlink(lock_file) == 0) {
2556 notice("Removed stale lock on %s (pid %d)",
2560 warn("Couldn't remove stale lock on %s",
2563 notice("Device %s is locked by pid %d",
2568 error("Can't create lock file %s: %m", lock_file);
2573 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2574 write(fd, ascii_pid, 11);
2581 * unlock - remove our lockfile
2594 * cifroute - delete a route through the addresses given.
2597 cifroute(u, our, his)
2603 memset(&rt, 0, sizeof(rt));
2604 rt.rt_dst.sa_family = AF_INET;
2605 INET_ADDR(rt.rt_dst) = his;
2606 rt.rt_gateway.sa_family = AF_INET;
2607 INET_ADDR(rt.rt_gateway) = our;
2608 rt.rt_flags = RTF_HOST;
2610 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2611 error("Can't delete route: %m");
2619 * have_route_to - determine if the system has a route to the specified
2620 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2621 * `addr' is in network byte order.
2622 * For demand mode to work properly, we have to ignore routes
2623 * through our own interface.
2625 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2626 #define T_CURRENT MI_T_CURRENT
2634 int fd, r, flags, i;
2636 struct T_optmgmt_req req;
2640 struct T_optmgmt_ack ack;
2641 unsigned char space[64];
2644 struct strbuf cbuf, dbuf;
2646 mib2_ipRouteEntry_t routes[8];
2647 mib2_ipRouteEntry_t *rp;
2649 fd = open(mux_dev_name, O_RDWR);
2651 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2655 req.req.PRIM_type = T_OPTMGMT_REQ;
2656 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2657 req.req.OPT_length = sizeof(req.hdr);
2658 req.req.MGMT_flags = T_CURRENT;
2660 req.hdr.level = MIB2_IP;
2664 cbuf.buf = (char *) &req;
2665 cbuf.len = sizeof(req);
2667 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2668 warn("have_route_to: putmsg: %m");
2674 cbuf.buf = (char *) &ack;
2675 cbuf.maxlen = sizeof(ack);
2676 dbuf.buf = (char *) routes;
2677 dbuf.maxlen = sizeof(routes);
2679 r = getmsg(fd, &cbuf, &dbuf, &flags);
2681 warn("have_route_to: getmsg: %m");
2686 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2687 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2688 || ack.ack.MGMT_flags != T_SUCCESS
2689 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2690 dbglog("have_route_to: bad message len=%d prim=%d",
2691 cbuf.len, ack.ack.PRIM_type);
2696 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2697 if (rh->level == 0 && rh->name == 0)
2699 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2700 while (r == MOREDATA)
2701 r = getmsg(fd, NULL, &dbuf, &flags);
2706 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2707 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2708 if (rp->ipRouteMask != ~0) {
2709 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2710 rp->ipRouteDest, rp->ipRouteNextHop,
2712 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2713 && rp->ipRouteNextHop != remote_addr)
2719 r = getmsg(fd, NULL, &dbuf, &flags);
2730 * get_pty - get a pty master/slave pair and chown the slave side to
2731 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2734 get_pty(master_fdp, slave_fdp, slave_name, uid)
2742 struct termios tios;
2744 mfd = open("/dev/ptmx", O_RDWR);
2746 error("Couldn't open pty master: %m");
2750 pty_name = ptsname(mfd);
2751 if (pty_name == NULL) {
2752 error("Couldn't get name of pty slave");
2756 if (chown(pty_name, uid, -1) < 0)
2757 warn("Couldn't change owner of pty slave: %m");
2758 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2759 warn("Couldn't change permissions on pty slave: %m");
2760 if (unlockpt(mfd) < 0)
2761 warn("Couldn't unlock pty slave: %m");
2763 sfd = open(pty_name, O_RDWR);
2765 error("Couldn't open pty slave %s: %m", pty_name);
2769 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2770 warn("Couldn't push ptem module on pty slave: %m");
2772 dbglog("Using %s", pty_name);
2773 strlcpy(slave_name, pty_name, MAXPATHLEN);