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.
99 #include <sys/termiox.h>
104 #include <sys/types.h>
105 #include <sys/ioccom.h>
106 #include <sys/stream.h>
107 #include <sys/stropts.h>
108 #include <sys/socket.h>
109 #include <sys/sockio.h>
110 #include <sys/sysmacros.h>
111 #include <sys/systeminfo.h>
112 #include <sys/dlpi.h>
113 #include <sys/stat.h>
114 #include <sys/mkdev.h>
115 #include <sys/time.h>
117 #include <net/if_arp.h>
118 #include <net/route.h>
119 #include <net/ppp_defs.h>
120 #include <net/pppio.h>
121 #include <netinet/in.h>
123 #include <sys/tihdr.h>
124 #include <sys/tiuser.h>
125 #include <inet/common.h>
126 #include <inet/mib2.h>
127 #include <sys/ethernet.h>
136 #if !defined(PPP_DRV_NAME)
137 #define PPP_DRV_NAME "ppp"
138 #endif /* !defined(PPP_DRV_NAME) */
140 #if !defined(PPP_DEV_NAME)
141 #define PPP_DEV_NAME "/dev/" PPP_DRV_NAME
142 #endif /* !defined(PPP_DEV_NAME) */
144 #if !defined(AHDLC_MOD_NAME)
145 #define AHDLC_MOD_NAME "ppp_ahdl"
146 #endif /* !defined(AHDLC_MOD_NAME) */
148 #if !defined(COMP_MOD_NAME)
149 #define COMP_MOD_NAME "ppp_comp"
150 #endif /* !defined(COMP_MOD_NAME) */
152 #if !defined(IP_DEV_NAME)
153 #define IP_DEV_NAME "/dev/ip"
154 #endif /* !defined(IP_DEV_NAME) */
156 #if !defined(IP_MOD_NAME)
157 #define IP_MOD_NAME "ip"
158 #endif /* !defined(IP_MOD_NAME) */
160 #if !defined(UDP_DEV_NAME) && defined(SOL2)
161 #define UDP_DEV_NAME "/dev/udp"
162 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
164 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
165 #define UDP6_DEV_NAME "/dev/udp6"
166 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
171 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
172 * under. It is used in place of "/dev/ip" since STREAMS will not let
173 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
174 * driver at the bottom of the tunneling interfaces stream.
176 static char *mux_dev_name = UDP_DEV_NAME;
178 static char *mux_dev_name = IP_DEV_NAME;
181 static int fdmuxid = -1;
183 static int ipmuxid = -1;
185 #if defined(INET6) && defined(SOL2)
186 static int ip6fd; /* IP file descriptor */
187 static int ip6muxid = -1; /* Multiplexer file descriptor */
188 static int if6_is_up = 0; /* IPv6 interface has been marked up */
190 #define IN6_SOCKADDR_FROM_EUI64(s, eui64) do { \
191 (s)->sin6_family = AF_INET6; \
192 (s)->sin6_addr.s6_addr32[0] = htonl(0xfe800000); \
193 eui64_copy(eui64, (s)->sin6_addr.s6_addr32[2]); \
196 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
197 s->sin6_addr.s6_addr32[0] = htonl(as); \
198 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
199 s->sin6_family = AF_INET6; \
200 l.lifr_addr.ss_family = AF_INET6; \
201 l.lifr_addrlen = 64; \
202 l.lifr_addr = laddr; \
205 #define _IN6A_LLX_FROM_EUI64(s, eui64, as) do { \
206 s->s6_addr32[0] = htonl(as); \
207 eui64_copy(eui64, s->s6_addr32[2]); \
210 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
211 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
213 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
214 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
216 #define IN6A_LLADDR_FROM_EUI64(s, eui64) \
217 _IN6A_LLX_FROM_EUI64(s, eui64, 0xfe800000)
219 #endif /* defined(INET6) && defined(SOL2) */
221 #if !defined(INET6) || !defined(SOL2)
222 #define MAXIFS 256 /* Max # of interfaces */
223 #endif /* defined(INET6) && defined(SOL2) */
225 static int restore_term;
226 static struct termios inittermios;
228 static struct termiox inittermiox;
229 static int termiox_ok;
231 static struct winsize wsinfo; /* Initial window size info */
232 static pid_t tty_sid; /* original session ID for terminal */
234 extern u_char inpacket_buf[]; /* borrowed from main.c */
236 #define MAX_POLLFDS 32
237 static struct pollfd pollfds[MAX_POLLFDS];
238 static int n_pollfds;
240 static int link_mtu, link_mru;
243 static int tty_nmodules;
244 static char tty_modules[NMODULES][FMNAMESZ+1];
245 static int tty_npushed;
247 static int if_is_up; /* Interface has been marked up */
248 static u_int32_t remote_addr; /* IP address of peer */
249 static u_int32_t default_route_gateway; /* Gateway for default route added */
250 static eui64_t default_route_gateway6; /* Gateway for default IPv6 route added */
251 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
253 /* Prototypes for procedures local to this file. */
254 static int translate_speed(int);
255 static int baud_rate_of(int);
256 static int get_ether_addr(u_int32_t, struct sockaddr *);
257 static int get_hw_addr(char *, u_int32_t, struct sockaddr *);
258 static int get_hw_addr_dlpi(char *, struct sockaddr *);
259 static int dlpi_attach(int, int);
260 static int dlpi_info_req(int);
261 static int dlpi_get_reply(int, union DL_primitives *, int, size_t);
262 static int strioctl(int, int, void *, int, int);
266 * sifppa - Sets interface ppa
268 * without setting the ppa, ip module will return EINVAL upon setting the
269 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
270 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
271 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
272 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
273 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
274 * is required because the ppp DLPI provider advertises itself as
275 * a DLPI style 2 type, which requires a point of attachment to be
276 * specified. The only way the user can specify a point of attachment
277 * is via SIOCSLIFNAME or IF_UNITSEL.
279 * Such changes in the behavior of ip module was made to meet new or
280 * evolving standards requirements.
288 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
292 #if defined(SOL2) && defined(INET6)
294 * get_first_ether_hwaddr - get the hardware address for the first
295 * ethernet-style interface on this system.
297 * NOTE: This is the lifreq version (Solaris 8 and above)
300 get_first_ether_hwaddr(u_char *addr)
304 struct lifreq *plifreq;
306 int fd, num_ifs, i, found;
310 fd = socket(AF_INET, SOCK_DGRAM, 0);
316 * Find out how many interfaces are running
318 lifn.lifn_family = AF_UNSPEC;
319 lifn.lifn_flags = LIFC_NOXMIT;
320 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
322 error("could not determine number of interfaces: %m");
326 num_ifs = lifn.lifn_count;
327 req_size = num_ifs * sizeof(struct lifreq);
328 req = malloc(req_size);
331 error("out of memory");
336 * Get interface configuration info for all interfaces
338 lifc.lifc_family = AF_UNSPEC;
339 lifc.lifc_flags = LIFC_NOXMIT;
340 lifc.lifc_len = req_size;
342 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
345 error("SIOCGLIFCONF: %m");
350 * And traverse each interface to look specifically for the first
351 * occurence of an Ethernet interface which has been marked up
353 plifreq = lifc.lifc_req;
355 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
357 if (strchr(plifreq->lifr_name, ':') != NULL)
360 memset(&lifr, 0, sizeof(lifr));
361 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
362 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
363 error("SIOCGLIFFLAGS: %m");
366 fl = lifr.lifr_flags;
368 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
369 != (IFF_UP | IFF_BROADCAST))
372 if (get_if_hwaddr(addr, lifr.lifr_name) < 0)
388 * get_first_ether_hwaddr - get the hardware address for the first
389 * ethernet-style interface on this system.
391 * NOTE: This is the ifreq version (before Solaris 8).
394 get_first_ether_hwaddr(u_char *addr)
397 struct ifreq *pifreq;
399 int fd, num_ifs, i, found;
403 fd = socket(AF_INET, SOCK_DGRAM, 0);
409 * Find out how many interfaces are running
411 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
415 req_size = num_ifs * sizeof(struct ifreq);
416 req = malloc(req_size);
419 error("out of memory");
424 * Get interface configuration info for all interfaces
426 ifc.ifc_len = req_size;
428 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
431 error("SIOCGIFCONF: %m");
436 * And traverse each interface to look specifically for the first
437 * occurence of an Ethernet interface which has been marked up
439 pifreq = ifc.ifc_req;
441 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
443 if (strchr(pifreq->ifr_name, ':') != NULL)
446 memset(&ifr, 0, sizeof(ifr));
447 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
448 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
449 error("SIOCGIFFLAGS: %m");
454 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
455 != (IFF_UP | IFF_BROADCAST))
458 if (get_if_hwaddr(addr, ifr.ifr_name) < 0)
472 #endif /* defined(SOL2) && defined(INET6) */
476 * get_if_hwaddr - get the hardware address for the specified
477 * network interface device.
480 get_if_hwaddr(u_char *addr, char *if_name)
482 struct sockaddr s_eth_addr;
483 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
489 * Send DL_INFO_REQ to the driver to solicit its MAC address
491 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
492 error("could not obtain hardware address for %s", if_name);
496 memcpy(addr, eth_addr->ether_addr_octet, 6);
501 #if defined(SOL2) && defined(INET6)
503 * slifname - Sets interface ppa and flags
505 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
506 * be set in order to declare this as an IPv6 interface
509 slifname(int fd, int ppa)
514 memset(&lifr, 0, sizeof(lifr));
515 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
519 lifr.lifr_flags |= IFF_IPV6;
520 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
522 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
524 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
531 #endif /* defined(SOL2) && defined(INET6) */
534 * sys_init - System-dependent initialization.
541 #if defined(INET6) && defined(SOL2)
544 #endif /* defined(INET6) && defined(SOL2) */
547 union DL_primitives prim;
550 #endif /* !defined(SOL2) */
552 ipfd = open(mux_dev_name, O_RDWR, 0);
554 fatal("Couldn't open IP device: %m");
556 #if defined(INET6) && defined(SOL2)
557 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
559 fatal("Couldn't open IP device (2): %m");
560 #endif /* defined(INET6) && defined(SOL2) */
562 if (default_device && !notty)
563 tty_sid = getsid((pid_t)0);
565 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
567 fatal("Can't open %s: %m", PPP_DEV_NAME);
568 if (kdebugflag & 1) {
569 x = PPPDBG_LOG + PPPDBG_DRIVER;
570 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
573 /* Assign a new PPA and get its unit number. */
574 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
575 fatal("Can't create new PPP interface: %m");
579 * Since sys_init() is called prior to ifname being set in main(),
580 * we need to get the ifname now, otherwise slifname(), and others,
581 * will fail, or maybe, I should move them to a later point ?
582 * <adi.masputra@sun.com>
584 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
585 #endif /* defined(SOL2) */
587 * Open the ppp device again and link it under the ip multiplexor.
588 * IP will assign a unit number which hopefully is the same as ifunit.
589 * I don't know any way to be certain they will be the same. :-(
591 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
593 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
594 if (kdebugflag & 1) {
595 x = PPPDBG_LOG + PPPDBG_DRIVER;
596 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
599 #if defined(INET6) && defined(SOL2)
600 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
603 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
605 if (kdebugflag & 1) {
606 x = PPPDBG_LOG + PPPDBG_DRIVER;
607 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
609 #endif /* defined(INET6) && defined(SOL2) */
612 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
616 #endif /* defined(INET6) */
617 fatal("Can't push IP module: %m");
621 * Assign ppa according to the unit number returned by ppp device
622 * after plumbing is completed above.
624 if (sifppa(ifd, ifunit) < 0) {
628 #endif /* defined(INET6) */
629 fatal("Can't set ppa for unit %d: %m", ifunit);
634 * An IPv6 interface is created anyway, even when the user does not
635 * explicitly enable it. Note that the interface will be marked
636 * IPv6 during slifname().
638 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
641 fatal("Can't push IP module (2): %m");
645 * Assign ppa according to the unit number returned by ppp device
646 * after plumbing is completed above. In addition, mark the interface
647 * as an IPv6 interface.
649 if (slifname(i6fd, ifunit) < 0) {
652 fatal("Can't set ifname for unit %d: %m", ifunit);
654 #endif /* defined(INET6) */
656 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
661 #endif /* defined(INET6) */
662 fatal("Can't I_PLINK PPP device to IP: %m");
665 memset(&ifr, 0, sizeof(ifr));
666 sprintf(ifr.ifr_name, "%s", ifname);
667 ifr.ifr_ip_muxid = ipmuxid;
670 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
671 * This is so that an arbitrary module can be inserted, or deleted,
672 * between ip module and the device driver without tearing down the
673 * existing stream. Such feature requires the mux ids, which is set
674 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
676 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
677 ioctl(ipfd, I_PUNLINK, ipmuxid);
680 #endif /* defined(INET6) */
681 fatal("SIOCSIFMUXID: %m");
684 #else /* else if !defined(SOL2) */
686 if (dlpi_attach(ifd, ifunit) < 0 ||
687 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
689 fatal("Can't attach to ppp%d: %m", ifunit);
692 ipmuxid = ioctl(ipfd, I_LINK, ifd);
695 fatal("Can't link PPP device to IP: %m");
696 #endif /* defined(SOL2) */
698 #if defined(INET6) && defined(SOL2)
699 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
702 ioctl(ipfd, I_PUNLINK, ipmuxid);
703 fatal("Can't I_PLINK PPP device to IP (2): %m");
706 memset(&lifr, 0, sizeof(lifr));
707 sprintf(lifr.lifr_name, "%s", ifname);
708 lifr.lifr_ip_muxid = ip6muxid;
711 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
713 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
714 ioctl(ipfd, I_PUNLINK, ipmuxid);
715 ioctl(ip6fd, I_PUNLINK, ip6muxid);
716 fatal("Can't link PPP device to IP (2): %m");
718 #endif /* defined(INET6) && defined(SOL2) */
721 /* Set the interface name for the link. */
722 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
723 ifr.ifr_metric = ipmuxid;
724 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
725 fatal("Can't set interface name %s: %m", ifr.ifr_name);
726 #endif /* !defined(SOL2) */
732 * sys_cleanup - restore any system state we modified before exiting:
733 * mark the interface down, delete default route and/or proxy arp entry.
734 * This should call die() because it's called from die().
743 #endif /* defined(INET6) */
744 #endif /* defined(SOL2) */
746 #if defined(SOL2) && defined(INET6)
749 #endif /* defined(SOL2) && defined(INET6) */
752 if (default_route_gateway)
753 cifdefaultroute(0, default_route_gateway, default_route_gateway);
754 if (default_route_gateway6.e32[0] != 0 || default_route_gateway6.e32[1] != 0)
755 cif6defaultroute(0, default_route_gateway6, default_route_gateway6);
757 cifproxyarp(0, proxy_arp_addr);
760 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
761 * unlink and re-link the modules, causing the muxid to change.
763 memset(&ifr, 0, sizeof(ifr));
764 sprintf(ifr.ifr_name, "%s", ifname);
765 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
766 error("SIOCGIFFLAGS: %m");
770 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
771 error("SIOCGIFMUXID: %m");
775 ipmuxid = ifr.ifr_ip_muxid;
777 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
778 error("Can't I_PUNLINK PPP from IP: %m");
783 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
784 * unlink and re-link the modules, causing the muxid to change.
786 memset(&lifr, 0, sizeof(lifr));
787 sprintf(lifr.lifr_name, "%s", ifname);
788 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
789 error("SIOCGLIFFLAGS: %m");
793 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
794 error("SIOCGLIFMUXID: %m");
798 ip6muxid = lifr.lifr_ip_muxid;
800 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
801 error("Can't I_PUNLINK PPP from IP (2): %m");
803 #endif /* defined(INET6) */
804 #endif /* defined(SOL2) */
808 * sys_close - Clean up in a child process before execing.
814 #if defined(INET6) && defined(SOL2)
816 #endif /* defined(INET6) && defined(SOL2) */
822 * sys_check_options - check the options that the user specified
825 sys_check_options(void)
832 * daemon - Detach us from controlling terminal session.
835 daemon(int nochdir, int noclose)
839 if ((pid = fork()) < 0)
842 exit(0); /* parent dies */
847 fclose(stdin); /* don't need stdin, stdout, stderr */
856 * ppp_available - check whether the system has any ppp interfaces
863 return stat(PPP_DEV_NAME, &buf) >= 0;
867 * any_compressions - see if compression is enabled or not
869 * In the STREAMS implementation of kernel-portion pppd,
870 * the comp STREAMS module performs the ACFC, PFC, as well
871 * CCP and VJ compressions. However, if the user has explicitly
872 * declare to not enable them from the command line, there is
873 * no point of having the comp module be pushed on the stream.
876 any_compressions(void)
878 if ((!lcp_wantoptions[0].neg_accompression) &&
879 (!lcp_wantoptions[0].neg_pcompression) &&
880 (!ccp_protent.enabled_flag) &&
881 (!ipcp_wantoptions[0].neg_vj)) {
888 * tty_establish_ppp - Turn the serial port into a ppp interface.
891 tty_establish_ppp(int fd)
895 /* Pop any existing modules off the tty stream. */
897 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
898 || strcmp(tty_modules[i], "ptem") == 0
899 || ioctl(fd, I_POP, 0) < 0)
903 /* Push the async hdlc module and the compressor module. */
907 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
908 error("Couldn't push PPP Async HDLC module: %m");
913 if (kdebugflag & 4) {
914 i = PPPDBG_LOG + PPPDBG_AHDLC;
915 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
918 * There's no need to push comp module if we don't intend
919 * to compress anything
921 if (any_compressions()) {
922 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
923 error("Couldn't push PPP compression module: %m");
928 if (kdebugflag & 2) {
930 if (any_compressions())
932 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
935 /* Link the serial port under the PPP multiplexor. */
936 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
937 error("Can't link tty to PPP mux: %m");
945 * tty_disestablish_ppp - Restore the serial port to normal operation.
946 * It attempts to reconstruct the stream with the previously popped
947 * modules. This shouldn't call die() because it's called from die().
950 tty_disestablish_ppp(int fd)
955 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
957 error("Can't unlink tty from PPP mux: %m");
962 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
964 for (i = tty_nmodules - 1; i >= 0; --i)
965 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
966 error("Couldn't restore tty module %s: %m",
969 if (hungup && default_device && tty_sid > 0) {
971 * If we have received a hangup, we need to send a SIGHUP
972 * to the terminal's controlling process. The reason is
973 * that the original stream head for the terminal hasn't
974 * seen the M_HANGUP message (it went up through the ppp
975 * driver to the stream head for our fd to /dev/ppp).
977 kill(tty_sid, SIGHUP);
983 * Check whether the link seems not to be 8-bit clean.
991 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
996 s = "bit 7 set to 1";
999 s = "bit 7 set to 0";
1009 warn("Serial link is not 8-bit clean:");
1010 warn("All received characters had %s", s);
1015 * List of valid speeds.
1018 int speed_int, speed_val;
1087 { 115200, B115200 },
1090 { 153600, B153600 },
1093 { 230400, B230400 },
1096 { 307200, B307200 },
1099 { 460800, B460800 },
1105 * Translate from bits/second to a speed_t.
1108 translate_speed(int bps)
1110 struct speed *speedp;
1114 for (speedp = speeds; speedp->speed_int; speedp++)
1115 if (bps == speedp->speed_int)
1116 return speedp->speed_val;
1117 warn("speed %d not supported", bps);
1122 * Translate from a speed_t to bits/second.
1125 baud_rate_of(int speed)
1127 struct speed *speedp;
1131 for (speedp = speeds; speedp->speed_int; speedp++)
1132 if (speed == speedp->speed_val)
1133 return speedp->speed_int;
1138 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1139 * at the requested speed, etc. If `local' is true, set CLOCAL
1140 * regardless of whether the modem option was specified.
1143 set_up_tty(int fd, int local)
1146 struct termios tios;
1147 #if !defined (CRTSCTS)
1148 struct termiox tiox;
1151 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1152 fatal("tcgetattr: %m");
1156 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1158 if (errno != ENOTTY)
1159 error("TCGETX: %m");
1163 if (!restore_term) {
1169 ioctl(fd, TIOCGWINSZ, &wsinfo);
1172 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1175 tios.c_cflag |= CRTSCTS;
1176 else if (crtscts < 0)
1177 tios.c_cflag &= ~CRTSCTS;
1179 if (crtscts != 0 && !termiox_ok) {
1180 error("Can't set RTS/CTS flow control");
1181 } else if (crtscts > 0) {
1182 tiox.x_hflag |= RTSXOFF|CTSXON;
1183 } else if (crtscts < 0) {
1184 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1189 tios.c_cflag |= CSTOPB;
1191 tios.c_cflag |= CS8 | CREAD | HUPCL;
1192 if (local || !modem)
1193 tios.c_cflag |= CLOCAL;
1194 tios.c_iflag = IGNBRK | IGNPAR;
1197 tios.c_cc[VMIN] = 1;
1198 tios.c_cc[VTIME] = 0;
1200 if (crtscts == -2) {
1201 tios.c_iflag |= IXON | IXOFF;
1202 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1203 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1206 speed = translate_speed(inspeed);
1208 cfsetospeed(&tios, speed);
1209 cfsetispeed(&tios, speed);
1211 speed = cfgetospeed(&tios);
1213 * We can't proceed if the serial port speed is 0,
1214 * since that implies that the serial port is disabled.
1216 if ((speed == B0) && !sync_serial)
1217 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1220 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1221 fatal("tcsetattr: %m");
1224 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1225 error("TCSETXF: %m");
1229 baud_rate = inspeed = baud_rate_of(speed);
1235 * restore_tty - restore the terminal to the saved settings.
1241 if (!default_device) {
1243 * Turn off echoing, because otherwise we can get into
1244 * a loop with the tty and the modem echoing to each other.
1245 * We presume we are the sole user of this tty device, so
1246 * when we close it, it will revert to its defaults anyway.
1248 inittermios.c_lflag &= ~(ECHO | ECHONL);
1250 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1251 if (!hungup && errno != ENXIO)
1252 warn("tcsetattr: %m");
1254 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1255 if (!hungup && errno != ENXIO)
1256 error("TCSETXF: %m");
1260 ioctl(fd, TIOCSWINSZ, &wsinfo);
1266 * setdtr - control the DTR line on the serial port.
1267 * This is called from die(), so it shouldn't call die().
1270 setdtr(int fd, int on)
1272 int modembits = TIOCM_DTR;
1274 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1278 * open_loopback - open the device we use for getting packets
1279 * in demand mode. Under Solaris 2, we use our existing fd
1280 * to the ppp driver.
1283 open_ppp_loopback(void)
1289 * output - Output PPP packet.
1292 output(int unit, u_char *p, int len)
1298 dump_packet("sent", p, len);
1299 if (snoop_send_hook) snoop_send_hook(p, len);
1302 data.buf = (caddr_t) p;
1304 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1305 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1307 error("Couldn't send packet: %m");
1311 pfd.events = POLLOUT;
1312 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1318 * wait_input - wait until there is data available,
1319 * for the length of time specified by *timo (indefinite
1323 wait_input(struct timeval *timo)
1327 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1328 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1333 * add_fd - add an fd to the set that wait_input waits for.
1339 for (n = 0; n < n_pollfds; ++n)
1340 if (pollfds[n].fd == fd)
1342 if (n_pollfds < MAX_POLLFDS) {
1343 pollfds[n_pollfds].fd = fd;
1344 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1347 error("Too many inputs!");
1351 * remove_fd - remove an fd from the set that wait_input waits for.
1353 void remove_fd(int fd)
1357 for (n = 0; n < n_pollfds; ++n) {
1358 if (pollfds[n].fd == fd) {
1359 while (++n < n_pollfds)
1360 pollfds[n-1] = pollfds[n];
1369 * wait_loop_output - wait until there is data available on the
1370 * loopback, for the length of time specified by *timo (indefinite
1374 wait_loop_output(struct timeval *timo)
1380 * wait_time - wait for a given length of time or until a
1381 * signal is received.
1384 wait_time(struct timeval *timo)
1388 n = select(0, NULL, NULL, NULL, timo);
1389 if (n < 0 && errno != EINTR)
1390 fatal("select: %m");
1396 * read_packet - get a PPP packet from the serial device.
1399 read_packet(u_char *buf)
1401 struct strbuf ctrl, data;
1403 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1406 data.maxlen = PPP_MRU + PPP_HDRLEN;
1407 data.buf = (caddr_t) buf;
1408 ctrl.maxlen = sizeof(ctrlbuf);
1409 ctrl.buf = (caddr_t) ctrlbuf;
1411 len = getmsg(pppfd, &ctrl, &data, &flags);
1413 if (errno == EAGAIN || errno == EINTR)
1415 fatal("Error reading packet: %m");
1422 * Got a M_PROTO or M_PCPROTO message. Interpret it
1423 * as a DLPI primitive??
1426 dbglog("got dlpi prim 0x%x, len=%d",
1427 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1433 * get_loop_output - get outgoing packets from the ppp device,
1434 * and detect when we want to bring the real link up.
1435 * Return value is 1 if we need to bring up the link, 0 otherwise.
1438 get_loop_output(void)
1443 while ((len = read_packet(inpacket_buf)) > 0) {
1444 if (loop_frame(inpacket_buf, len))
1451 * netif_set_mtu - set the MTU on the PPP network interface.
1454 netif_set_mtu(int unit, int mtu)
1457 #if defined(INET6) && defined(SOL2)
1460 #endif /* defined(INET6) && defined(SOL2) */
1462 memset(&ifr, 0, sizeof(ifr));
1463 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1464 ifr.ifr_metric = mtu;
1465 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1466 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1469 #if defined(INET6) && defined(SOL2)
1470 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1472 error("Couldn't open IPv6 socket: %m");
1474 memset(&lifr, 0, sizeof(lifr));
1475 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1476 lifr.lifr_mtu = mtu;
1477 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1479 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1482 #endif /* defined(INET6) && defined(SOL2) */
1488 * netif_get_mtu - get the MTU on the PPP network interface.
1491 netif_get_mtu(int unit)
1495 memset (&ifr, '\0', sizeof (ifr));
1496 strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
1498 if (ioctl(ipfd, SIOCGIFMTU, (caddr_t) &ifr) < 0) {
1499 error("ioctl(SIOCGIFMTU): %m (line %d)", __LINE__);
1502 return ifr.ifr_metric;
1506 * tty_send_config - configure the transmit characteristics of
1507 * the ppp interface.
1510 tty_send_config(int mtu, u_int32_t asyncmap, int pcomp, int accomp)
1515 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1516 if (hungup && errno == ENXIO) {
1520 error("Couldn't set MTU: %m");
1524 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1525 error("Couldn't set transmit ACCM: %m");
1527 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1528 cf[1] = COMP_PROT | COMP_AC;
1529 if (any_compressions() &&
1530 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1531 error("Couldn't set prot/AC compression: %m");
1536 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1539 tty_set_xaccm(ext_accm accm)
1545 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1546 if (!hungup || errno != ENXIO)
1547 warn("Couldn't set extended ACCM: %m");
1552 * tty_recv_config - configure the receive-side characteristics of
1553 * the ppp interface.
1556 tty_recv_config(int mru, u_int32_t asyncmap, int pcomp, int accomp)
1561 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1562 if (hungup && errno == ENXIO) {
1566 error("Couldn't set MRU: %m");
1570 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1571 error("Couldn't set receive ACCM: %m");
1573 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1574 cf[1] = DECOMP_PROT | DECOMP_AC;
1575 if (any_compressions() &&
1576 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1577 error("Couldn't set prot/AC decompression: %m");
1582 * ccp_test - ask kernel whether a given compression method
1583 * is acceptable for use.
1586 ccp_test(int unit, u_char *opt_ptr, int opt_len, int for_transmit)
1588 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1589 opt_ptr, opt_len, 0) >= 0)
1591 return (errno == ENOSR)? 0: -1;
1595 * ccp_flags_set - inform kernel about the current state of CCP.
1598 ccp_flags_set(int unit, int isopen, int isup)
1602 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1603 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1604 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1605 if (!hungup || errno != ENXIO)
1606 error("Couldn't set kernel CCP state: %m");
1611 * get_idle_time - return how long the link has been idle.
1614 get_idle_time(int u, struct ppp_idle *ip)
1616 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1620 * get_ppp_stats - return statistics for the link.
1623 get_ppp_stats(int u, struct pppd_stats *stats)
1628 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1629 error("Couldn't get link statistics: %m");
1632 stats->bytes_in = s.p.ppp_ibytes;
1633 stats->bytes_out = s.p.ppp_obytes;
1634 stats->pkts_in = s.p.ppp_ipackets;
1635 stats->pkts_out = s.p.ppp_opackets;
1641 * set_filters - transfer the pass and active filters to the kernel.
1644 set_filters(struct bpf_program *pass, struct bpf_program *active)
1648 if (pass->bf_len > 0) {
1649 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1650 sizeof(struct bpf_program), 0) < 0) {
1651 error("Couldn't set pass-filter in kernel: %m");
1655 if (active->bf_len > 0) {
1656 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1657 sizeof(struct bpf_program), 0) < 0) {
1658 error("Couldn't set active-filter in kernel: %m");
1667 * ccp_fatal_error - returns 1 if decompression was disabled as a
1668 * result of an error detected after decompression of a packet,
1669 * 0 otherwise. This is necessary because of patent nonsense.
1672 ccp_fatal_error(int unit)
1677 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1678 if (errno != ENXIO && errno != EINVAL)
1679 error("Couldn't get compression flags: %m");
1682 return cf[0] & CCP_FATALERROR;
1686 * sifvjcomp - config tcp header compression
1689 sifvjcomp(int u, int vjcomp, int xcidcomp, int xmaxcid)
1695 maxcid[0] = xcidcomp;
1696 maxcid[1] = 15; /* XXX should be rmaxcid */
1697 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1698 error("Couldn't initialize VJ compression: %m");
1702 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1703 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1704 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1705 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1707 error("Couldn't enable VJ compression: %m");
1714 * sifup - Config the interface up and enable IP packets to pass.
1721 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1722 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1723 error("Couldn't mark interface up (get): %m");
1726 ifr.ifr_flags |= IFF_UP;
1727 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1728 error("Couldn't mark interface up (set): %m");
1736 * sifdown - Config the interface down and disable IP.
1745 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1746 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1747 error("Couldn't mark interface down (get): %m");
1750 ifr.ifr_flags &= ~IFF_UP;
1751 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1752 error("Couldn't mark interface down (set): %m");
1760 * sifnpmode - Set the mode for handling packets for a given NP.
1763 sifnpmode(int u, int proto, enum NPmode mode)
1768 npi[1] = (int) mode;
1769 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1770 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1776 #if defined(SOL2) && defined(INET6)
1778 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1786 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1791 memset(&lifr, 0, sizeof(lifr));
1792 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1793 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1798 lifr.lifr_flags |= IFF_UP;
1799 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1800 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1811 * sifdown - Config the IPv6 interface down and disable IPv6.
1819 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1823 memset(&lifr, 0, sizeof(lifr));
1824 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1825 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1830 lifr.lifr_flags &= ~IFF_UP;
1831 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1832 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1843 * sif6addr - Config the interface with an IPv6 link-local address
1846 sif6addr(int u, eui64_t o, eui64_t h)
1849 struct sockaddr_storage laddr;
1850 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1853 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1857 memset(&lifr, 0, sizeof(lifr));
1858 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1861 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1862 * zero values, hence the interface token came to be zero too,
1863 * and without this, in.ndpd will complain
1865 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1866 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1872 * Set the interface address and destination address
1874 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1875 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1880 memset(&lifr, 0, sizeof(lifr));
1881 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1882 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1883 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1892 * cif6addr - Remove the IPv6 address from interface
1895 cif6addr(int u, eui64_t o, eui64_t h)
1901 * sif6defaultroute - assign a default route through the address given.
1904 sif6defaultroute(int u, eui64_t l, eui64_t g)
1907 struct rt_msghdr rtm;
1908 struct sockaddr_in6 dst;
1909 struct sockaddr_in6 gw;
1914 #if defined(__USLC__)
1915 g = l; /* use the local address as gateway */
1917 memset(&rmsg, 0, sizeof(rmsg));
1919 rmsg.rtm.rtm_msglen = sizeof (rmsg);
1920 rmsg.rtm.rtm_version = RTM_VERSION;
1921 rmsg.rtm.rtm_type = RTM_ADD;
1922 rmsg.rtm.rtm_flags = RTF_GATEWAY;
1923 rmsg.rtm.rtm_addrs = RTA_DST | RTA_GATEWAY;
1924 rmsg.rtm.rtm_pid = getpid();
1925 rmsg.rtm.rtm_seq = seq++;
1927 rmsg.dst.sin6_family = AF_INET6;
1929 rmsg.gw.sin6_family = AF_INET6;
1930 IN6_SOCKADDR_FROM_EUI64(&rmsg.gw, g);
1932 rtsock = socket(PF_ROUTE, SOCK_RAW, 0);
1935 error("Can't add default route: %m");
1939 if (write(rtsock, &rmsg, sizeof(rmsg)) < 0)
1940 error("Can't add default route: %m");
1944 default_route_gateway6 = g;
1949 * cif6defaultroute - delete a default route through the address given.
1952 cif6defaultroute(int u, eui64_t l, eui64_t g)
1954 /* No need to do this on Solaris; the kernel deletes the
1955 route when the interface goes down. */
1956 memset(&default_route_gateway6, 0, sizeof(default_route_gateway6));
1960 #endif /* defined(SOL2) && defined(INET6) */
1963 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1966 * sifaddr - Config the interface IP addresses and netmask.
1969 sifaddr(int u, u_int32_t o, u_int32_t h, u_int32_t m)
1974 memset(&ifr, 0, sizeof(ifr));
1975 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1976 ifr.ifr_addr.sa_family = AF_INET;
1977 INET_ADDR(ifr.ifr_addr) = m;
1978 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1979 error("Couldn't set IP netmask: %m");
1982 ifr.ifr_addr.sa_family = AF_INET;
1983 INET_ADDR(ifr.ifr_addr) = o;
1984 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1985 error("Couldn't set local IP address: %m");
1990 * On some systems, we have to explicitly set the point-to-point
1991 * flag bit before we can set a destination address.
1993 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1994 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1995 ifr.ifr_flags |= IFF_POINTOPOINT;
1996 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1997 error("Couldn't mark interface pt-to-pt: %m");
2001 ifr.ifr_dstaddr.sa_family = AF_INET;
2002 INET_ADDR(ifr.ifr_dstaddr) = h;
2003 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2004 error("Couldn't set remote IP address: %m");
2013 * cifaddr - Clear the interface IP addresses, and delete routes
2014 * through the interface if possible.
2017 cifaddr(int u, u_int32_t o, u_int32_t h)
2019 #if defined(__USLC__) /* was: #if 0 */
2020 cifroute(unit, ouraddr, hisaddr);
2022 notice("Removing ppp interface unit");
2023 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2024 error("Can't remove ppp interface unit: %m");
2035 * sifdefaultroute - assign a default route through the address given.
2038 sifdefaultroute(int u, u_int32_t l, u_int32_t g, bool replace)
2043 error("Replacing the default route is not implemented on Solaris yet");
2047 #if defined(__USLC__)
2048 g = l; /* use the local address as gateway */
2050 memset(&rt, 0, sizeof(rt));
2051 rt.rt_dst.sa_family = AF_INET;
2052 INET_ADDR(rt.rt_dst) = 0;
2053 rt.rt_gateway.sa_family = AF_INET;
2054 INET_ADDR(rt.rt_gateway) = g;
2055 rt.rt_flags = RTF_GATEWAY;
2057 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2058 error("Can't add default route: %m");
2062 default_route_gateway = g;
2067 * cifdefaultroute - delete a default route through the address given.
2070 cifdefaultroute(int u, u_int32_t l, u_int32_t 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(int unit, u_int32_t hisaddr)
2099 struct arpreq arpreq;
2101 memset(&arpreq, 0, sizeof(arpreq));
2102 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2105 arpreq.arp_pa.sa_family = AF_INET;
2106 INET_ADDR(arpreq.arp_pa) = hisaddr;
2107 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2108 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2109 error("Couldn't set proxy ARP entry: %m");
2113 proxy_arp_addr = hisaddr;
2118 * cifproxyarp - Delete the proxy ARP entry for the peer.
2121 cifproxyarp(int unit, u_int32_t hisaddr)
2123 struct arpreq arpreq;
2125 memset(&arpreq, 0, sizeof(arpreq));
2126 arpreq.arp_pa.sa_family = AF_INET;
2127 INET_ADDR(arpreq.arp_pa) = hisaddr;
2128 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2129 error("Couldn't delete proxy ARP entry: %m");
2138 * get_ether_addr - get the hardware address of an interface on the
2139 * the same subnet as ipaddr.
2144 get_ether_addr(u_int32_t ipaddr, struct sockaddr *hwaddr)
2146 struct ifreq *ifr, *ifend, ifreq;
2149 u_int32_t ina, mask;
2152 * Scan through the system's network interfaces.
2155 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2158 ifc.ifc_len = nif * sizeof(struct ifreq);
2159 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2160 if (ifc.ifc_buf == 0)
2162 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2163 warn("Couldn't get system interface list: %m");
2167 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2168 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2169 if (ifr->ifr_addr.sa_family != AF_INET)
2172 * Check that the interface is up, and not point-to-point or loopback.
2174 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2175 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2177 if ((ifreq.ifr_flags &
2178 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2179 != (IFF_UP|IFF_BROADCAST))
2182 * Get its netmask and check that it's on the right subnet.
2184 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2186 ina = INET_ADDR(ifr->ifr_addr);
2187 mask = INET_ADDR(ifreq.ifr_addr);
2188 if ((ipaddr & mask) == (ina & mask))
2193 warn("No suitable interface found for proxy ARP");
2198 info("found interface %s for proxy ARP", ifr->ifr_name);
2199 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2200 error("Couldn't get hardware address for %s", ifr->ifr_name);
2210 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2213 get_hw_addr_dlpi(char *name, struct sockaddr *hwaddr)
2216 int unit, iffd, adrlen;
2217 unsigned char *adrp;
2220 union DL_primitives prim;
2225 * We have to open the device and ask it for its hardware address.
2226 * First split apart the device name and unit.
2228 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2229 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2236 * Open the device and do a DLPI attach and phys_addr_req.
2238 iffd = open(ifdev, O_RDWR);
2240 error("Can't open %s: %m", ifdev);
2243 if (dlpi_attach(iffd, unit) < 0
2244 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2245 || dlpi_info_req(iffd) < 0
2246 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2251 adrlen = reply.prim.info_ack.dl_addr_length;
2252 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2254 #if DL_CURRENT_VERSION >= 2
2255 if (reply.prim.info_ack.dl_sap_length < 0)
2256 adrlen += reply.prim.info_ack.dl_sap_length;
2258 adrp += reply.prim.info_ack.dl_sap_length;
2261 hwaddr->sa_family = AF_UNSPEC;
2262 memcpy(hwaddr->sa_data, adrp, adrlen);
2267 * get_hw_addr - obtain the hardware address for a named interface.
2270 get_hw_addr(char *name, u_int32_t ina, struct sockaddr *hwaddr)
2272 /* New way - get the address by doing an arp request. */
2276 s = socket(AF_INET, SOCK_DGRAM, 0);
2279 memset(&req, 0, sizeof(req));
2280 req.arp_pa.sa_family = AF_INET;
2281 INET_ADDR(req.arp_pa) = ina;
2282 if (ioctl(s, SIOCGARP, &req) < 0) {
2283 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2286 *hwaddr = req.arp_ha;
2287 hwaddr->sa_family = AF_UNSPEC;
2293 dlpi_attach(int fd, int ppa)
2295 dl_attach_req_t req;
2298 req.dl_primitive = DL_ATTACH_REQ;
2300 buf.len = sizeof(req);
2301 buf.buf = (void *) &req;
2302 return putmsg(fd, &buf, NULL, RS_HIPRI);
2306 dlpi_info_req(int fd)
2311 req.dl_primitive = DL_INFO_REQ;
2312 buf.len = sizeof(req);
2313 buf.buf = (void *) &req;
2314 return putmsg(fd, &buf, NULL, RS_HIPRI);
2318 dlpi_get_reply(int fd, union DL_primitives *reply, int expected_prim, size_t maxlen)
2325 * Use poll to wait for a message with a timeout.
2328 pfd.events = POLLIN | POLLPRI;
2330 n = poll(&pfd, 1, 1000);
2331 } while (n == -1 && errno == EINTR && !got_sigterm);
2338 buf.maxlen = maxlen;
2339 buf.buf = (void *) reply;
2341 if (getmsg(fd, &buf, NULL, &flags) < 0)
2344 if (buf.len < sizeof(ulong)) {
2346 dbglog("dlpi response short (len=%d)\n", buf.len);
2350 if (reply->dl_primitive == expected_prim)
2354 if (reply->dl_primitive == DL_ERROR_ACK) {
2355 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2356 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2357 reply->error_ack.dl_error_primitive);
2359 dbglog("dlpi unexpected response prim %x\n",
2360 reply->dl_primitive);
2368 * Return user specified netmask, modified by any mask we might determine
2369 * for address `addr' (in network byte order).
2370 * Here we scan through the system's list of interfaces, looking for
2371 * any non-point-to-point interfaces which might appear to be on the same
2372 * network as `addr'. If we find any, we OR in their netmask to the
2373 * user-specified netmask.
2376 GetMask(u_int32_t addr)
2378 u_int32_t mask, nmask, ina;
2379 struct ifreq *ifr, *ifend, ifreq;
2384 if (IN_CLASSA(addr)) /* determine network mask for address class */
2385 nmask = IN_CLASSA_NET;
2386 else if (IN_CLASSB(addr))
2387 nmask = IN_CLASSB_NET;
2389 nmask = IN_CLASSC_NET;
2390 /* class D nets are disallowed by bad_ip_adrs */
2391 mask = netmask | htonl(nmask);
2394 * Scan through the system's network interfaces.
2397 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2400 ifc.ifc_len = nif * sizeof(struct ifreq);
2401 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2402 if (ifc.ifc_buf == 0)
2404 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2405 warn("Couldn't get system interface list: %m");
2409 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2410 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2412 * Check the interface's internet address.
2414 if (ifr->ifr_addr.sa_family != AF_INET)
2416 ina = INET_ADDR(ifr->ifr_addr);
2417 if ((ntohl(ina) & nmask) != (addr & nmask))
2420 * Check that the interface is up, and not point-to-point or loopback.
2422 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2423 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2425 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2429 * Get its netmask and OR it into our mask.
2431 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2433 mask |= INET_ADDR(ifreq.ifr_addr);
2441 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2444 logwtmp(const char *line, const char *name, const char *host)
2446 static struct utmpx utmpx;
2450 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2451 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2452 strncpy(utmpx.ut_host, host, sizeof(utmpx.ut_host));
2453 if (*host != '\0') {
2454 utmpx.ut_syslen = strlen(host) + 1;
2455 if (utmpx.ut_syslen > sizeof(utmpx.ut_host))
2456 utmpx.ut_syslen = sizeof(utmpx.ut_host);
2458 utmpx.ut_pid = getpid();
2459 utmpx.ut_type = USER_PROCESS;
2461 utmpx.ut_type = DEAD_PROCESS;
2463 gettimeofday(&utmpx.ut_tv, NULL);
2464 updwtmpx("/var/adm/wtmpx", &utmpx);
2468 * get_host_seed - return the serial number of this machine.
2475 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2476 error("sysinfo: %m");
2479 return (int) strtoul(buf, NULL, 16);
2483 strioctl(int fd, int cmd, void *ptr, int ilen, int olen)
2485 struct strioctl str;
2491 if (ioctl(fd, I_STR, &str) == -1)
2493 if (str.ic_len != olen)
2494 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2495 olen, str.ic_len, cmd);
2501 * lock - create a lock file for the named lock device
2504 #define LOCK_PREFIX "/var/spool/locks/LK."
2505 static char lock_file[40]; /* name of lock file created */
2514 if (stat(dev, &sbuf) < 0) {
2515 error("Can't get device number for %s: %m", dev);
2518 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2519 error("Can't lock %s: not a character device", dev);
2522 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2523 LOCK_PREFIX, major(sbuf.st_dev),
2524 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2526 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2528 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2529 /* Read the lock file to find out who has the device locked */
2530 n = read(fd, ascii_pid, 11);
2532 error("Can't read pid from lock file %s", lock_file);
2536 pid = atoi(ascii_pid);
2537 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2538 /* pid no longer exists - remove the lock file */
2539 if (unlink(lock_file) == 0) {
2541 notice("Removed stale lock on %s (pid %d)",
2545 warn("Couldn't remove stale lock on %s",
2548 notice("Device %s is locked by pid %d",
2553 error("Can't create lock file %s: %m", lock_file);
2558 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2559 write(fd, ascii_pid, 11);
2566 * unlock - remove our lockfile
2579 * cifroute - delete a route through the addresses given.
2582 cifroute(int u, u_int32_t our, u_int32_t his)
2586 memset(&rt, 0, sizeof(rt));
2587 rt.rt_dst.sa_family = AF_INET;
2588 INET_ADDR(rt.rt_dst) = his;
2589 rt.rt_gateway.sa_family = AF_INET;
2590 INET_ADDR(rt.rt_gateway) = our;
2591 rt.rt_flags = RTF_HOST;
2593 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2594 error("Can't delete route: %m");
2602 * have_route_to - determine if the system has a route to the specified
2603 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2604 * `addr' is in network byte order.
2605 * For demand mode to work properly, we have to ignore routes
2606 * through our own interface.
2608 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2609 #define T_CURRENT MI_T_CURRENT
2613 have_route_to(u_int32_t addr)
2616 int fd, r, flags, i;
2618 struct T_optmgmt_req req;
2622 struct T_optmgmt_ack ack;
2623 unsigned char space[64];
2626 struct strbuf cbuf, dbuf;
2628 mib2_ipRouteEntry_t routes[8];
2629 mib2_ipRouteEntry_t *rp;
2631 fd = open(mux_dev_name, O_RDWR);
2633 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2637 req.req.PRIM_type = T_OPTMGMT_REQ;
2638 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2639 req.req.OPT_length = sizeof(req.hdr);
2640 req.req.MGMT_flags = T_CURRENT;
2642 req.hdr.level = MIB2_IP;
2646 cbuf.buf = (char *) &req;
2647 cbuf.len = sizeof(req);
2649 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2650 warn("have_route_to: putmsg: %m");
2656 cbuf.buf = (char *) &ack;
2657 cbuf.maxlen = sizeof(ack);
2658 dbuf.buf = (char *) routes;
2659 dbuf.maxlen = sizeof(routes);
2661 r = getmsg(fd, &cbuf, &dbuf, &flags);
2663 warn("have_route_to: getmsg: %m");
2668 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2669 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2670 || ack.ack.MGMT_flags != T_SUCCESS
2671 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2672 dbglog("have_route_to: bad message len=%d prim=%d",
2673 cbuf.len, ack.ack.PRIM_type);
2678 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2679 if (rh->level == 0 && rh->name == 0)
2681 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2682 while (r == MOREDATA)
2683 r = getmsg(fd, NULL, &dbuf, &flags);
2688 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2689 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2690 if (rp->ipRouteMask != ~0) {
2691 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2692 rp->ipRouteDest, rp->ipRouteNextHop,
2694 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2695 && rp->ipRouteNextHop != remote_addr)
2701 r = getmsg(fd, NULL, &dbuf, &flags);
2712 * get_pty - get a pty master/slave pair and chown the slave side to
2713 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2716 get_pty(int *master_fdp, int *slave_fdp, char *slave_name, int uid)
2721 mfd = open("/dev/ptmx", O_RDWR);
2723 error("Couldn't open pty master: %m");
2727 pty_name = ptsname(mfd);
2728 if (pty_name == NULL) {
2729 error("Couldn't get name of pty slave");
2733 if (chown(pty_name, uid, -1) < 0)
2734 warn("Couldn't change owner of pty slave: %m");
2735 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2736 warn("Couldn't change permissions on pty slave: %m");
2737 if (unlockpt(mfd) < 0)
2738 warn("Couldn't unlock pty slave: %m");
2740 sfd = open(pty_name, O_RDWR);
2742 error("Couldn't open pty slave %s: %m", pty_name);
2746 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2747 warn("Couldn't push ptem module on pty slave: %m");
2749 dbglog("Using %s", pty_name);
2750 strlcpy(slave_name, pty_name, MAXPATHLEN);
2757 /********************************************************************
2759 * get_time - Get current time, monotonic if possible.
2762 get_time(struct timeval *tv)
2764 return gettimeofday(tv, NULL);