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.
103 #include <sys/termiox.h>
108 #include <sys/types.h>
109 #include <sys/ioccom.h>
110 #include <sys/stream.h>
111 #include <sys/stropts.h>
112 #include <sys/socket.h>
113 #include <sys/sockio.h>
114 #include <sys/sysmacros.h>
115 #include <sys/systeminfo.h>
116 #include <sys/dlpi.h>
117 #include <sys/stat.h>
118 #include <sys/mkdev.h>
119 #include <sys/time.h>
121 #include <net/if_arp.h>
122 #include <net/route.h>
123 #include <net/ppp_defs.h>
124 #include <net/pppio.h>
125 #include <netinet/in.h>
127 #include <sys/tihdr.h>
128 #include <sys/tiuser.h>
129 #include <inet/common.h>
130 #include <inet/mib2.h>
131 #include <sys/ethernet.h>
144 #if !defined(PPP_DRV_NAME)
145 #define PPP_DRV_NAME "ppp"
146 #endif /* !defined(PPP_DRV_NAME) */
148 #if !defined(PPP_DEV_NAME)
149 #define PPP_DEV_NAME "/dev/" PPP_DRV_NAME
150 #endif /* !defined(PPP_DEV_NAME) */
152 #if !defined(AHDLC_MOD_NAME)
153 #define AHDLC_MOD_NAME "ppp_ahdl"
154 #endif /* !defined(AHDLC_MOD_NAME) */
156 #if !defined(COMP_MOD_NAME)
157 #define COMP_MOD_NAME "ppp_comp"
158 #endif /* !defined(COMP_MOD_NAME) */
160 #if !defined(IP_DEV_NAME)
161 #define IP_DEV_NAME "/dev/ip"
162 #endif /* !defined(IP_DEV_NAME) */
164 #if !defined(IP_MOD_NAME)
165 #define IP_MOD_NAME "ip"
166 #endif /* !defined(IP_MOD_NAME) */
168 #if !defined(UDP_DEV_NAME) && defined(SOL2)
169 #define UDP_DEV_NAME "/dev/udp"
170 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
172 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
173 #define UDP6_DEV_NAME "/dev/udp6"
174 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
179 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
180 * under. It is used in place of "/dev/ip" since STREAMS will not let
181 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
182 * driver at the bottom of the tunneling interfaces stream.
184 static char *mux_dev_name = UDP_DEV_NAME;
186 static char *mux_dev_name = IP_DEV_NAME;
189 static int fdmuxid = -1;
191 static int ipmuxid = -1;
193 #if defined(INET6) && defined(SOL2)
194 static int ip6fd; /* IP file descriptor */
195 static int ip6muxid = -1; /* Multiplexer file descriptor */
196 static int if6_is_up = 0; /* IPv6 interface has been marked up */
198 #define IN6_SOCKADDR_FROM_EUI64(s, eui64) do { \
199 (s)->sin6_family = AF_INET6; \
200 (s)->sin6_addr.s6_addr32[0] = htonl(0xfe800000); \
201 eui64_copy(eui64, (s)->sin6_addr.s6_addr32[2]); \
204 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
205 s->sin6_addr.s6_addr32[0] = htonl(as); \
206 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
207 s->sin6_family = AF_INET6; \
208 l.lifr_addr.ss_family = AF_INET6; \
209 l.lifr_addrlen = 64; \
210 l.lifr_addr = laddr; \
213 #define _IN6A_LLX_FROM_EUI64(s, eui64, as) do { \
214 s->s6_addr32[0] = htonl(as); \
215 eui64_copy(eui64, s->s6_addr32[2]); \
218 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
219 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
221 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
222 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
224 #define IN6A_LLADDR_FROM_EUI64(s, eui64) \
225 _IN6A_LLX_FROM_EUI64(s, eui64, 0xfe800000)
227 #endif /* defined(INET6) && defined(SOL2) */
229 #if !defined(INET6) || !defined(SOL2)
230 #define MAXIFS 256 /* Max # of interfaces */
231 #endif /* defined(INET6) && defined(SOL2) */
233 static int restore_term;
234 static struct termios inittermios;
236 static struct termiox inittermiox;
237 static int termiox_ok;
239 static struct winsize wsinfo; /* Initial window size info */
240 static pid_t tty_sid; /* original session ID for terminal */
242 extern u_char inpacket_buf[]; /* borrowed from main.c */
244 #define MAX_POLLFDS 32
245 static struct pollfd pollfds[MAX_POLLFDS];
246 static int n_pollfds;
248 static int link_mtu, link_mru;
251 static int tty_nmodules;
252 static char tty_modules[NMODULES][FMNAMESZ+1];
253 static int tty_npushed;
255 static int if_is_up; /* Interface has been marked up */
256 static u_int32_t remote_addr; /* IP address of peer */
257 static u_int32_t default_route_gateway; /* Gateway for default route added */
258 static eui64_t default_route_gateway6; /* Gateway for default IPv6 route added */
259 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
261 /* Prototypes for procedures local to this file. */
262 static int translate_speed(int);
263 static int baud_rate_of(int);
264 static int get_ether_addr(u_int32_t, struct sockaddr *);
265 static int get_hw_addr(char *, u_int32_t, struct sockaddr *);
266 static int get_hw_addr_dlpi(char *, struct sockaddr *);
267 static int dlpi_attach(int, int);
268 static int dlpi_info_req(int);
269 static int dlpi_get_reply(int, union DL_primitives *, int, size_t);
270 static int strioctl(int, int, void *, int, int);
274 * sifppa - Sets interface ppa
276 * without setting the ppa, ip module will return EINVAL upon setting the
277 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
278 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
279 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
280 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
281 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
282 * is required because the ppp DLPI provider advertises itself as
283 * a DLPI style 2 type, which requires a point of attachment to be
284 * specified. The only way the user can specify a point of attachment
285 * is via SIOCSLIFNAME or IF_UNITSEL.
287 * Such changes in the behavior of ip module was made to meet new or
288 * evolving standards requirements.
296 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
300 #if defined(SOL2) && defined(INET6)
302 * get_first_ether_hwaddr - get the hardware address for the first
303 * ethernet-style interface on this system.
305 * NOTE: This is the lifreq version (Solaris 8 and above)
308 get_first_ether_hwaddr(u_char *addr)
312 struct lifreq *plifreq;
314 int fd, num_ifs, i, found;
318 fd = socket(AF_INET, SOCK_DGRAM, 0);
324 * Find out how many interfaces are running
326 lifn.lifn_family = AF_UNSPEC;
327 lifn.lifn_flags = LIFC_NOXMIT;
328 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
330 error("could not determine number of interfaces: %m");
334 num_ifs = lifn.lifn_count;
335 req_size = num_ifs * sizeof(struct lifreq);
336 req = malloc(req_size);
339 error("out of memory");
344 * Get interface configuration info for all interfaces
346 lifc.lifc_family = AF_UNSPEC;
347 lifc.lifc_flags = LIFC_NOXMIT;
348 lifc.lifc_len = req_size;
350 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
353 error("SIOCGLIFCONF: %m");
358 * And traverse each interface to look specifically for the first
359 * occurence of an Ethernet interface which has been marked up
361 plifreq = lifc.lifc_req;
363 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
365 if (strchr(plifreq->lifr_name, ':') != NULL)
368 memset(&lifr, 0, sizeof(lifr));
369 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
370 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
371 error("SIOCGLIFFLAGS: %m");
374 fl = lifr.lifr_flags;
376 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
377 != (IFF_UP | IFF_BROADCAST))
380 if (get_if_hwaddr(addr, lifr.lifr_name) < 0)
396 * get_first_ether_hwaddr - get the hardware address for the first
397 * ethernet-style interface on this system.
399 * NOTE: This is the ifreq version (before Solaris 8).
402 get_first_ether_hwaddr(u_char *addr)
405 struct ifreq *pifreq;
407 int fd, num_ifs, i, found;
411 fd = socket(AF_INET, SOCK_DGRAM, 0);
417 * Find out how many interfaces are running
419 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
423 req_size = num_ifs * sizeof(struct ifreq);
424 req = malloc(req_size);
427 error("out of memory");
432 * Get interface configuration info for all interfaces
434 ifc.ifc_len = req_size;
436 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
439 error("SIOCGIFCONF: %m");
444 * And traverse each interface to look specifically for the first
445 * occurence of an Ethernet interface which has been marked up
447 pifreq = ifc.ifc_req;
449 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
451 if (strchr(pifreq->ifr_name, ':') != NULL)
454 memset(&ifr, 0, sizeof(ifr));
455 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
456 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
457 error("SIOCGIFFLAGS: %m");
462 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
463 != (IFF_UP | IFF_BROADCAST))
466 if (get_if_hwaddr(addr, ifr.ifr_name) < 0)
480 #endif /* defined(SOL2) && defined(INET6) */
484 * get_if_hwaddr - get the hardware address for the specified
485 * network interface device.
488 get_if_hwaddr(u_char *addr, char *if_name)
490 struct sockaddr s_eth_addr;
491 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
497 * Send DL_INFO_REQ to the driver to solicit its MAC address
499 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
500 error("could not obtain hardware address for %s", if_name);
504 memcpy(addr, eth_addr->ether_addr_octet, 6);
509 #if defined(SOL2) && defined(INET6)
511 * slifname - Sets interface ppa and flags
513 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
514 * be set in order to declare this as an IPv6 interface
517 slifname(int fd, int ppa)
522 memset(&lifr, 0, sizeof(lifr));
523 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
527 lifr.lifr_flags |= IFF_IPV6;
528 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
530 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
532 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
539 #endif /* defined(SOL2) && defined(INET6) */
542 * sys_init - System-dependent initialization.
549 #if defined(INET6) && defined(SOL2)
552 #endif /* defined(INET6) && defined(SOL2) */
555 union DL_primitives prim;
558 #endif /* !defined(SOL2) */
560 ipfd = open(mux_dev_name, O_RDWR, 0);
562 fatal("Couldn't open IP device: %m");
564 #if defined(INET6) && defined(SOL2)
565 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
567 fatal("Couldn't open IP device (2): %m");
568 #endif /* defined(INET6) && defined(SOL2) */
570 if (default_device && !notty)
571 tty_sid = getsid((pid_t)0);
573 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
575 fatal("Can't open %s: %m", PPP_DEV_NAME);
576 if (kdebugflag & 1) {
577 x = PPPDBG_LOG + PPPDBG_DRIVER;
578 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
581 /* Assign a new PPA and get its unit number. */
582 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
583 fatal("Can't create new PPP interface: %m");
587 * Since sys_init() is called prior to ifname being set in main(),
588 * we need to get the ifname now, otherwise slifname(), and others,
589 * will fail, or maybe, I should move them to a later point ?
590 * <adi.masputra@sun.com>
592 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
593 #endif /* defined(SOL2) */
595 * Open the ppp device again and link it under the ip multiplexor.
596 * IP will assign a unit number which hopefully is the same as ifunit.
597 * I don't know any way to be certain they will be the same. :-(
599 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
601 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
602 if (kdebugflag & 1) {
603 x = PPPDBG_LOG + PPPDBG_DRIVER;
604 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
607 #if defined(INET6) && defined(SOL2)
608 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
611 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
613 if (kdebugflag & 1) {
614 x = PPPDBG_LOG + PPPDBG_DRIVER;
615 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
617 #endif /* defined(INET6) && defined(SOL2) */
620 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
624 #endif /* defined(INET6) */
625 fatal("Can't push IP module: %m");
629 * Assign ppa according to the unit number returned by ppp device
630 * after plumbing is completed above.
632 if (sifppa(ifd, ifunit) < 0) {
636 #endif /* defined(INET6) */
637 fatal("Can't set ppa for unit %d: %m", ifunit);
642 * An IPv6 interface is created anyway, even when the user does not
643 * explicitly enable it. Note that the interface will be marked
644 * IPv6 during slifname().
646 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
649 fatal("Can't push IP module (2): %m");
653 * Assign ppa according to the unit number returned by ppp device
654 * after plumbing is completed above. In addition, mark the interface
655 * as an IPv6 interface.
657 if (slifname(i6fd, ifunit) < 0) {
660 fatal("Can't set ifname for unit %d: %m", ifunit);
662 #endif /* defined(INET6) */
664 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
669 #endif /* defined(INET6) */
670 fatal("Can't I_PLINK PPP device to IP: %m");
673 memset(&ifr, 0, sizeof(ifr));
674 sprintf(ifr.ifr_name, "%s", ifname);
675 ifr.ifr_ip_muxid = ipmuxid;
678 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
679 * This is so that an arbitrary module can be inserted, or deleted,
680 * between ip module and the device driver without tearing down the
681 * existing stream. Such feature requires the mux ids, which is set
682 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
684 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
685 ioctl(ipfd, I_PUNLINK, ipmuxid);
688 #endif /* defined(INET6) */
689 fatal("SIOCSIFMUXID: %m");
692 #else /* else if !defined(SOL2) */
694 if (dlpi_attach(ifd, ifunit) < 0 ||
695 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
697 fatal("Can't attach to ppp%d: %m", ifunit);
700 ipmuxid = ioctl(ipfd, I_LINK, ifd);
703 fatal("Can't link PPP device to IP: %m");
704 #endif /* defined(SOL2) */
706 #if defined(INET6) && defined(SOL2)
707 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
710 ioctl(ipfd, I_PUNLINK, ipmuxid);
711 fatal("Can't I_PLINK PPP device to IP (2): %m");
714 memset(&lifr, 0, sizeof(lifr));
715 sprintf(lifr.lifr_name, "%s", ifname);
716 lifr.lifr_ip_muxid = ip6muxid;
719 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
721 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
722 ioctl(ipfd, I_PUNLINK, ipmuxid);
723 ioctl(ip6fd, I_PUNLINK, ip6muxid);
724 fatal("Can't link PPP device to IP (2): %m");
726 #endif /* defined(INET6) && defined(SOL2) */
729 /* Set the interface name for the link. */
730 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
731 ifr.ifr_metric = ipmuxid;
732 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
733 fatal("Can't set interface name %s: %m", ifr.ifr_name);
734 #endif /* !defined(SOL2) */
740 * sys_cleanup - restore any system state we modified before exiting:
741 * mark the interface down, delete default route and/or proxy arp entry.
742 * This should call die() because it's called from die().
751 #endif /* defined(INET6) */
752 #endif /* defined(SOL2) */
754 #if defined(SOL2) && defined(INET6)
757 #endif /* defined(SOL2) && defined(INET6) */
760 if (default_route_gateway)
761 cifdefaultroute(0, default_route_gateway, default_route_gateway);
762 if (default_route_gateway6.e32[0] != 0 || default_route_gateway6.e32[1] != 0)
763 cif6defaultroute(0, default_route_gateway6, default_route_gateway6);
765 cifproxyarp(0, proxy_arp_addr);
768 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
769 * unlink and re-link the modules, causing the muxid to change.
771 memset(&ifr, 0, sizeof(ifr));
772 sprintf(ifr.ifr_name, "%s", ifname);
773 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
774 error("SIOCGIFFLAGS: %m");
778 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
779 error("SIOCGIFMUXID: %m");
783 ipmuxid = ifr.ifr_ip_muxid;
785 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
786 error("Can't I_PUNLINK PPP from IP: %m");
791 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
792 * unlink and re-link the modules, causing the muxid to change.
794 memset(&lifr, 0, sizeof(lifr));
795 sprintf(lifr.lifr_name, "%s", ifname);
796 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
797 error("SIOCGLIFFLAGS: %m");
801 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
802 error("SIOCGLIFMUXID: %m");
806 ip6muxid = lifr.lifr_ip_muxid;
808 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
809 error("Can't I_PUNLINK PPP from IP (2): %m");
811 #endif /* defined(INET6) */
812 #endif /* defined(SOL2) */
816 * sys_close - Clean up in a child process before execing.
822 #if defined(INET6) && defined(SOL2)
824 #endif /* defined(INET6) && defined(SOL2) */
830 * sys_check_options - check the options that the user specified
833 sys_check_options(void)
840 * daemon - Detach us from controlling terminal session.
843 daemon(int nochdir, int noclose)
847 if ((pid = fork()) < 0)
850 exit(0); /* parent dies */
855 fclose(stdin); /* don't need stdin, stdout, stderr */
864 * ppp_available - check whether the system has any ppp interfaces
871 return stat(PPP_DEV_NAME, &buf) >= 0;
875 * any_compressions - see if compression is enabled or not
877 * In the STREAMS implementation of kernel-portion pppd,
878 * the comp STREAMS module performs the ACFC, PFC, as well
879 * CCP and VJ compressions. However, if the user has explicitly
880 * declare to not enable them from the command line, there is
881 * no point of having the comp module be pushed on the stream.
884 any_compressions(void)
886 if ((!lcp_wantoptions[0].neg_accompression) &&
887 (!lcp_wantoptions[0].neg_pcompression) &&
888 (!ccp_protent.enabled_flag) &&
889 (!ipcp_wantoptions[0].neg_vj)) {
896 * tty_establish_ppp - Turn the serial port into a ppp interface.
899 tty_establish_ppp(int fd)
903 /* Pop any existing modules off the tty stream. */
905 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
906 || strcmp(tty_modules[i], "ptem") == 0
907 || ioctl(fd, I_POP, 0) < 0)
911 /* Push the async hdlc module and the compressor module. */
915 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
916 error("Couldn't push PPP Async HDLC module: %m");
921 if (kdebugflag & 4) {
922 i = PPPDBG_LOG + PPPDBG_AHDLC;
923 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
926 * There's no need to push comp module if we don't intend
927 * to compress anything
929 if (any_compressions()) {
930 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
931 error("Couldn't push PPP compression module: %m");
936 if (kdebugflag & 2) {
938 if (any_compressions())
940 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
943 /* Link the serial port under the PPP multiplexor. */
944 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
945 error("Can't link tty to PPP mux: %m");
953 * tty_disestablish_ppp - Restore the serial port to normal operation.
954 * It attempts to reconstruct the stream with the previously popped
955 * modules. This shouldn't call die() because it's called from die().
958 tty_disestablish_ppp(int fd)
963 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
965 error("Can't unlink tty from PPP mux: %m");
970 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
972 for (i = tty_nmodules - 1; i >= 0; --i)
973 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
974 error("Couldn't restore tty module %s: %m",
977 if (hungup && default_device && tty_sid > 0) {
979 * If we have received a hangup, we need to send a SIGHUP
980 * to the terminal's controlling process. The reason is
981 * that the original stream head for the terminal hasn't
982 * seen the M_HANGUP message (it went up through the ppp
983 * driver to the stream head for our fd to /dev/ppp).
985 kill(tty_sid, SIGHUP);
991 * Check whether the link seems not to be 8-bit clean.
999 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
1004 s = "bit 7 set to 1";
1007 s = "bit 7 set to 0";
1017 warn("Serial link is not 8-bit clean:");
1018 warn("All received characters had %s", s);
1023 * List of valid speeds.
1026 int speed_int, speed_val;
1095 { 115200, B115200 },
1098 { 153600, B153600 },
1101 { 230400, B230400 },
1104 { 307200, B307200 },
1107 { 460800, B460800 },
1113 * Translate from bits/second to a speed_t.
1116 translate_speed(int bps)
1118 struct speed *speedp;
1122 for (speedp = speeds; speedp->speed_int; speedp++)
1123 if (bps == speedp->speed_int)
1124 return speedp->speed_val;
1125 warn("speed %d not supported", bps);
1130 * Translate from a speed_t to bits/second.
1133 baud_rate_of(int speed)
1135 struct speed *speedp;
1139 for (speedp = speeds; speedp->speed_int; speedp++)
1140 if (speed == speedp->speed_val)
1141 return speedp->speed_int;
1146 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1147 * at the requested speed, etc. If `local' is true, set CLOCAL
1148 * regardless of whether the modem option was specified.
1151 set_up_tty(int fd, int local)
1154 struct termios tios;
1155 #if !defined (CRTSCTS)
1156 struct termiox tiox;
1159 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1160 fatal("tcgetattr: %m");
1164 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1166 if (errno != ENOTTY)
1167 error("TCGETX: %m");
1171 if (!restore_term) {
1177 ioctl(fd, TIOCGWINSZ, &wsinfo);
1180 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1183 tios.c_cflag |= CRTSCTS;
1184 else if (crtscts < 0)
1185 tios.c_cflag &= ~CRTSCTS;
1187 if (crtscts != 0 && !termiox_ok) {
1188 error("Can't set RTS/CTS flow control");
1189 } else if (crtscts > 0) {
1190 tiox.x_hflag |= RTSXOFF|CTSXON;
1191 } else if (crtscts < 0) {
1192 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1197 tios.c_cflag |= CSTOPB;
1199 tios.c_cflag |= CS8 | CREAD | HUPCL;
1200 if (local || !modem)
1201 tios.c_cflag |= CLOCAL;
1202 tios.c_iflag = IGNBRK | IGNPAR;
1205 tios.c_cc[VMIN] = 1;
1206 tios.c_cc[VTIME] = 0;
1208 if (crtscts == -2) {
1209 tios.c_iflag |= IXON | IXOFF;
1210 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1211 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1214 speed = translate_speed(inspeed);
1216 cfsetospeed(&tios, speed);
1217 cfsetispeed(&tios, speed);
1219 speed = cfgetospeed(&tios);
1221 * We can't proceed if the serial port speed is 0,
1222 * since that implies that the serial port is disabled.
1224 if ((speed == B0) && !sync_serial)
1225 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1228 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1229 fatal("tcsetattr: %m");
1232 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1233 error("TCSETXF: %m");
1237 baud_rate = inspeed = baud_rate_of(speed);
1243 * restore_tty - restore the terminal to the saved settings.
1249 if (!default_device) {
1251 * Turn off echoing, because otherwise we can get into
1252 * a loop with the tty and the modem echoing to each other.
1253 * We presume we are the sole user of this tty device, so
1254 * when we close it, it will revert to its defaults anyway.
1256 inittermios.c_lflag &= ~(ECHO | ECHONL);
1258 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1259 if (!hungup && errno != ENXIO)
1260 warn("tcsetattr: %m");
1262 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1263 if (!hungup && errno != ENXIO)
1264 error("TCSETXF: %m");
1268 ioctl(fd, TIOCSWINSZ, &wsinfo);
1274 * setdtr - control the DTR line on the serial port.
1275 * This is called from die(), so it shouldn't call die().
1278 setdtr(int fd, int on)
1280 int modembits = TIOCM_DTR;
1282 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1286 * open_loopback - open the device we use for getting packets
1287 * in demand mode. Under Solaris 2, we use our existing fd
1288 * to the ppp driver.
1291 open_ppp_loopback(void)
1297 * output - Output PPP packet.
1300 output(int unit, u_char *p, int len)
1306 dump_packet("sent", p, len);
1307 if (snoop_send_hook) snoop_send_hook(p, len);
1310 data.buf = (caddr_t) p;
1312 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1313 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1315 error("Couldn't send packet: %m");
1319 pfd.events = POLLOUT;
1320 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1326 * wait_input - wait until there is data available,
1327 * for the length of time specified by *timo (indefinite
1331 wait_input(struct timeval *timo)
1335 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1336 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1341 * add_fd - add an fd to the set that wait_input waits for.
1347 for (n = 0; n < n_pollfds; ++n)
1348 if (pollfds[n].fd == fd)
1350 if (n_pollfds < MAX_POLLFDS) {
1351 pollfds[n_pollfds].fd = fd;
1352 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1355 error("Too many inputs!");
1359 * remove_fd - remove an fd from the set that wait_input waits for.
1361 void remove_fd(int fd)
1365 for (n = 0; n < n_pollfds; ++n) {
1366 if (pollfds[n].fd == fd) {
1367 while (++n < n_pollfds)
1368 pollfds[n-1] = pollfds[n];
1377 * wait_loop_output - wait until there is data available on the
1378 * loopback, for the length of time specified by *timo (indefinite
1382 wait_loop_output(struct timeval *timo)
1388 * wait_time - wait for a given length of time or until a
1389 * signal is received.
1392 wait_time(struct timeval *timo)
1396 n = select(0, NULL, NULL, NULL, timo);
1397 if (n < 0 && errno != EINTR)
1398 fatal("select: %m");
1404 * read_packet - get a PPP packet from the serial device.
1407 read_packet(u_char *buf)
1409 struct strbuf ctrl, data;
1411 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1414 data.maxlen = PPP_MRU + PPP_HDRLEN;
1415 data.buf = (caddr_t) buf;
1416 ctrl.maxlen = sizeof(ctrlbuf);
1417 ctrl.buf = (caddr_t) ctrlbuf;
1419 len = getmsg(pppfd, &ctrl, &data, &flags);
1421 if (errno == EAGAIN || errno == EINTR)
1423 fatal("Error reading packet: %m");
1430 * Got a M_PROTO or M_PCPROTO message. Interpret it
1431 * as a DLPI primitive??
1434 dbglog("got dlpi prim 0x%x, len=%d",
1435 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1441 * get_loop_output - get outgoing packets from the ppp device,
1442 * and detect when we want to bring the real link up.
1443 * Return value is 1 if we need to bring up the link, 0 otherwise.
1446 get_loop_output(void)
1451 while ((len = read_packet(inpacket_buf)) > 0) {
1452 if (loop_frame(inpacket_buf, len))
1459 * netif_set_mtu - set the MTU on the PPP network interface.
1462 netif_set_mtu(int unit, int mtu)
1465 #if defined(INET6) && defined(SOL2)
1468 #endif /* defined(INET6) && defined(SOL2) */
1470 memset(&ifr, 0, sizeof(ifr));
1471 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1472 ifr.ifr_metric = mtu;
1473 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1474 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1477 #if defined(INET6) && defined(SOL2)
1478 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1480 error("Couldn't open IPv6 socket: %m");
1482 memset(&lifr, 0, sizeof(lifr));
1483 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1484 lifr.lifr_mtu = mtu;
1485 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1487 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1490 #endif /* defined(INET6) && defined(SOL2) */
1496 * netif_get_mtu - get the MTU on the PPP network interface.
1499 netif_get_mtu(int unit)
1503 memset (&ifr, '\0', sizeof (ifr));
1504 strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
1506 if (ioctl(ipfd, SIOCGIFMTU, (caddr_t) &ifr) < 0) {
1507 error("ioctl(SIOCGIFMTU): %m (line %d)", __LINE__);
1510 return ifr.ifr_metric;
1514 * tty_send_config - configure the transmit characteristics of
1515 * the ppp interface.
1518 tty_send_config(int mtu, u_int32_t asyncmap, int pcomp, int accomp)
1523 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1524 if (hungup && errno == ENXIO) {
1528 error("Couldn't set MTU: %m");
1532 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1533 error("Couldn't set transmit ACCM: %m");
1535 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1536 cf[1] = COMP_PROT | COMP_AC;
1537 if (any_compressions() &&
1538 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1539 error("Couldn't set prot/AC compression: %m");
1544 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1547 tty_set_xaccm(ext_accm accm)
1553 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1554 if (!hungup || errno != ENXIO)
1555 warn("Couldn't set extended ACCM: %m");
1560 * tty_recv_config - configure the receive-side characteristics of
1561 * the ppp interface.
1564 tty_recv_config(int mru, u_int32_t asyncmap, int pcomp, int accomp)
1569 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1570 if (hungup && errno == ENXIO) {
1574 error("Couldn't set MRU: %m");
1578 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1579 error("Couldn't set receive ACCM: %m");
1581 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1582 cf[1] = DECOMP_PROT | DECOMP_AC;
1583 if (any_compressions() &&
1584 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1585 error("Couldn't set prot/AC decompression: %m");
1590 * ccp_test - ask kernel whether a given compression method
1591 * is acceptable for use.
1594 ccp_test(int unit, u_char *opt_ptr, int opt_len, int for_transmit)
1596 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1597 opt_ptr, opt_len, 0) >= 0)
1599 return (errno == ENOSR)? 0: -1;
1603 * ccp_flags_set - inform kernel about the current state of CCP.
1606 ccp_flags_set(int unit, int isopen, int isup)
1610 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1611 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1612 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1613 if (!hungup || errno != ENXIO)
1614 error("Couldn't set kernel CCP state: %m");
1619 * get_idle_time - return how long the link has been idle.
1622 get_idle_time(int u, struct ppp_idle *ip)
1624 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1628 * get_ppp_stats - return statistics for the link.
1631 get_ppp_stats(int u, struct pppd_stats *stats)
1636 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1637 error("Couldn't get link statistics: %m");
1640 stats->bytes_in = s.p.ppp_ibytes;
1641 stats->bytes_out = s.p.ppp_obytes;
1642 stats->pkts_in = s.p.ppp_ipackets;
1643 stats->pkts_out = s.p.ppp_opackets;
1648 * ccp_fatal_error - returns 1 if decompression was disabled as a
1649 * result of an error detected after decompression of a packet,
1650 * 0 otherwise. This is necessary because of patent nonsense.
1653 ccp_fatal_error(int unit)
1658 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1659 if (errno != ENXIO && errno != EINVAL)
1660 error("Couldn't get compression flags: %m");
1663 return cf[0] & CCP_FATALERROR;
1667 * sifvjcomp - config tcp header compression
1670 sifvjcomp(int u, int vjcomp, int xcidcomp, int xmaxcid)
1676 maxcid[0] = xcidcomp;
1677 maxcid[1] = 15; /* XXX should be rmaxcid */
1678 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1679 error("Couldn't initialize VJ compression: %m");
1683 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1684 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1685 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1686 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1688 error("Couldn't enable VJ compression: %m");
1695 * sifup - Config the interface up and enable IP packets to pass.
1702 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1703 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1704 error("Couldn't mark interface up (get): %m");
1707 ifr.ifr_flags |= IFF_UP;
1708 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1709 error("Couldn't mark interface up (set): %m");
1717 * sifdown - Config the interface down and disable IP.
1726 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1727 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1728 error("Couldn't mark interface down (get): %m");
1731 ifr.ifr_flags &= ~IFF_UP;
1732 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1733 error("Couldn't mark interface down (set): %m");
1741 * sifnpmode - Set the mode for handling packets for a given NP.
1744 sifnpmode(int u, int proto, enum NPmode mode)
1749 npi[1] = (int) mode;
1750 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1751 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1757 #if defined(SOL2) && defined(INET6)
1759 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1767 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1772 memset(&lifr, 0, sizeof(lifr));
1773 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1774 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1779 lifr.lifr_flags |= IFF_UP;
1780 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1781 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1792 * sifdown - Config the IPv6 interface down and disable IPv6.
1800 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1804 memset(&lifr, 0, sizeof(lifr));
1805 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1806 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1811 lifr.lifr_flags &= ~IFF_UP;
1812 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1813 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1824 * sif6addr - Config the interface with an IPv6 link-local address
1827 sif6addr(int u, eui64_t o, eui64_t h)
1830 struct sockaddr_storage laddr;
1831 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1834 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1838 memset(&lifr, 0, sizeof(lifr));
1839 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1842 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1843 * zero values, hence the interface token came to be zero too,
1844 * and without this, in.ndpd will complain
1846 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1847 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1853 * Set the interface address and destination address
1855 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1856 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1861 memset(&lifr, 0, sizeof(lifr));
1862 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1863 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1864 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1873 * cif6addr - Remove the IPv6 address from interface
1876 cif6addr(int u, eui64_t o, eui64_t h)
1882 * sif6defaultroute - assign a default route through the address given.
1885 sif6defaultroute(int u, eui64_t l, eui64_t g)
1888 struct rt_msghdr rtm;
1889 struct sockaddr_in6 dst;
1890 struct sockaddr_in6 gw;
1895 #if defined(__USLC__)
1896 g = l; /* use the local address as gateway */
1898 memset(&rmsg, 0, sizeof(rmsg));
1900 rmsg.rtm.rtm_msglen = sizeof (rmsg);
1901 rmsg.rtm.rtm_version = RTM_VERSION;
1902 rmsg.rtm.rtm_type = RTM_ADD;
1903 rmsg.rtm.rtm_flags = RTF_GATEWAY;
1904 rmsg.rtm.rtm_addrs = RTA_DST | RTA_GATEWAY;
1905 rmsg.rtm.rtm_pid = getpid();
1906 rmsg.rtm.rtm_seq = seq++;
1908 rmsg.dst.sin6_family = AF_INET6;
1910 rmsg.gw.sin6_family = AF_INET6;
1911 IN6_SOCKADDR_FROM_EUI64(&rmsg.gw, g);
1913 rtsock = socket(PF_ROUTE, SOCK_RAW, 0);
1916 error("Can't add default route: %m");
1920 if (write(rtsock, &rmsg, sizeof(rmsg)) < 0)
1921 error("Can't add default route: %m");
1925 default_route_gateway6 = g;
1930 * cif6defaultroute - delete a default route through the address given.
1933 cif6defaultroute(int u, eui64_t l, eui64_t g)
1935 /* No need to do this on Solaris; the kernel deletes the
1936 route when the interface goes down. */
1937 memset(&default_route_gateway6, 0, sizeof(default_route_gateway6));
1941 #endif /* defined(SOL2) && defined(INET6) */
1944 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1947 * sifaddr - Config the interface IP addresses and netmask.
1950 sifaddr(int u, u_int32_t o, u_int32_t h, u_int32_t m)
1955 memset(&ifr, 0, sizeof(ifr));
1956 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1957 ifr.ifr_addr.sa_family = AF_INET;
1958 INET_ADDR(ifr.ifr_addr) = m;
1959 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1960 error("Couldn't set IP netmask: %m");
1963 ifr.ifr_addr.sa_family = AF_INET;
1964 INET_ADDR(ifr.ifr_addr) = o;
1965 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1966 error("Couldn't set local IP address: %m");
1971 * On some systems, we have to explicitly set the point-to-point
1972 * flag bit before we can set a destination address.
1974 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1975 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1976 ifr.ifr_flags |= IFF_POINTOPOINT;
1977 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1978 error("Couldn't mark interface pt-to-pt: %m");
1982 ifr.ifr_dstaddr.sa_family = AF_INET;
1983 INET_ADDR(ifr.ifr_dstaddr) = h;
1984 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
1985 error("Couldn't set remote IP address: %m");
1994 * cifaddr - Clear the interface IP addresses, and delete routes
1995 * through the interface if possible.
1998 cifaddr(int u, u_int32_t o, u_int32_t h)
2000 #if defined(__USLC__) /* was: #if 0 */
2001 cifroute(unit, ouraddr, hisaddr);
2003 notice("Removing ppp interface unit");
2004 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2005 error("Can't remove ppp interface unit: %m");
2016 * sifdefaultroute - assign a default route through the address given.
2019 sifdefaultroute(int u, u_int32_t l, u_int32_t g, bool replace)
2024 error("Replacing the default route is not implemented on Solaris yet");
2028 #if defined(__USLC__)
2029 g = l; /* use the local address as gateway */
2031 memset(&rt, 0, sizeof(rt));
2032 rt.rt_dst.sa_family = AF_INET;
2033 INET_ADDR(rt.rt_dst) = 0;
2034 rt.rt_gateway.sa_family = AF_INET;
2035 INET_ADDR(rt.rt_gateway) = g;
2036 rt.rt_flags = RTF_GATEWAY;
2038 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2039 error("Can't add default route: %m");
2043 default_route_gateway = g;
2048 * cifdefaultroute - delete a default route through the address given.
2051 cifdefaultroute(int u, u_int32_t l, u_int32_t g)
2055 #if defined(__USLC__)
2056 g = l; /* use the local address as gateway */
2058 memset(&rt, 0, sizeof(rt));
2059 rt.rt_dst.sa_family = AF_INET;
2060 INET_ADDR(rt.rt_dst) = 0;
2061 rt.rt_gateway.sa_family = AF_INET;
2062 INET_ADDR(rt.rt_gateway) = g;
2063 rt.rt_flags = RTF_GATEWAY;
2065 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2066 error("Can't delete default route: %m");
2070 default_route_gateway = 0;
2075 * sifproxyarp - Make a proxy ARP entry for the peer.
2078 sifproxyarp(int unit, u_int32_t hisaddr)
2080 struct arpreq arpreq;
2082 memset(&arpreq, 0, sizeof(arpreq));
2083 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2086 arpreq.arp_pa.sa_family = AF_INET;
2087 INET_ADDR(arpreq.arp_pa) = hisaddr;
2088 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2089 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2090 error("Couldn't set proxy ARP entry: %m");
2094 proxy_arp_addr = hisaddr;
2099 * cifproxyarp - Delete the proxy ARP entry for the peer.
2102 cifproxyarp(int unit, u_int32_t hisaddr)
2104 struct arpreq arpreq;
2106 memset(&arpreq, 0, sizeof(arpreq));
2107 arpreq.arp_pa.sa_family = AF_INET;
2108 INET_ADDR(arpreq.arp_pa) = hisaddr;
2109 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2110 error("Couldn't delete proxy ARP entry: %m");
2119 * get_ether_addr - get the hardware address of an interface on the
2120 * the same subnet as ipaddr.
2125 get_ether_addr(u_int32_t ipaddr, struct sockaddr *hwaddr)
2127 struct ifreq *ifr, *ifend, ifreq;
2130 u_int32_t ina, mask;
2133 * Scan through the system's network interfaces.
2136 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2139 ifc.ifc_len = nif * sizeof(struct ifreq);
2140 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2141 if (ifc.ifc_buf == 0)
2143 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2144 warn("Couldn't get system interface list: %m");
2148 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2149 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2150 if (ifr->ifr_addr.sa_family != AF_INET)
2153 * Check that the interface is up, and not point-to-point or loopback.
2155 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2156 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2158 if ((ifreq.ifr_flags &
2159 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2160 != (IFF_UP|IFF_BROADCAST))
2163 * Get its netmask and check that it's on the right subnet.
2165 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2167 ina = INET_ADDR(ifr->ifr_addr);
2168 mask = INET_ADDR(ifreq.ifr_addr);
2169 if ((ipaddr & mask) == (ina & mask))
2174 warn("No suitable interface found for proxy ARP");
2179 info("found interface %s for proxy ARP", ifr->ifr_name);
2180 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2181 error("Couldn't get hardware address for %s", ifr->ifr_name);
2191 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2194 get_hw_addr_dlpi(char *name, struct sockaddr *hwaddr)
2197 int unit, iffd, adrlen;
2198 unsigned char *adrp;
2201 union DL_primitives prim;
2206 * We have to open the device and ask it for its hardware address.
2207 * First split apart the device name and unit.
2209 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2210 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2217 * Open the device and do a DLPI attach and phys_addr_req.
2219 iffd = open(ifdev, O_RDWR);
2221 error("Can't open %s: %m", ifdev);
2224 if (dlpi_attach(iffd, unit) < 0
2225 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2226 || dlpi_info_req(iffd) < 0
2227 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2232 adrlen = reply.prim.info_ack.dl_addr_length;
2233 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2235 #if DL_CURRENT_VERSION >= 2
2236 if (reply.prim.info_ack.dl_sap_length < 0)
2237 adrlen += reply.prim.info_ack.dl_sap_length;
2239 adrp += reply.prim.info_ack.dl_sap_length;
2242 hwaddr->sa_family = AF_UNSPEC;
2243 memcpy(hwaddr->sa_data, adrp, adrlen);
2248 * get_hw_addr - obtain the hardware address for a named interface.
2251 get_hw_addr(char *name, u_int32_t ina, struct sockaddr *hwaddr)
2253 /* New way - get the address by doing an arp request. */
2257 s = socket(AF_INET, SOCK_DGRAM, 0);
2260 memset(&req, 0, sizeof(req));
2261 req.arp_pa.sa_family = AF_INET;
2262 INET_ADDR(req.arp_pa) = ina;
2263 if (ioctl(s, SIOCGARP, &req) < 0) {
2264 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2267 *hwaddr = req.arp_ha;
2268 hwaddr->sa_family = AF_UNSPEC;
2274 dlpi_attach(int fd, int ppa)
2276 dl_attach_req_t req;
2279 req.dl_primitive = DL_ATTACH_REQ;
2281 buf.len = sizeof(req);
2282 buf.buf = (void *) &req;
2283 return putmsg(fd, &buf, NULL, RS_HIPRI);
2287 dlpi_info_req(int fd)
2292 req.dl_primitive = DL_INFO_REQ;
2293 buf.len = sizeof(req);
2294 buf.buf = (void *) &req;
2295 return putmsg(fd, &buf, NULL, RS_HIPRI);
2299 dlpi_get_reply(int fd, union DL_primitives *reply, int expected_prim, size_t maxlen)
2306 * Use poll to wait for a message with a timeout.
2309 pfd.events = POLLIN | POLLPRI;
2311 n = poll(&pfd, 1, 1000);
2312 } while (n == -1 && errno == EINTR && !got_sigterm);
2319 buf.maxlen = maxlen;
2320 buf.buf = (void *) reply;
2322 if (getmsg(fd, &buf, NULL, &flags) < 0)
2325 if (buf.len < sizeof(ulong)) {
2327 dbglog("dlpi response short (len=%d)\n", buf.len);
2331 if (reply->dl_primitive == expected_prim)
2335 if (reply->dl_primitive == DL_ERROR_ACK) {
2336 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2337 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2338 reply->error_ack.dl_error_primitive);
2340 dbglog("dlpi unexpected response prim %x\n",
2341 reply->dl_primitive);
2349 * Return user specified netmask, modified by any mask we might determine
2350 * for address `addr' (in network byte order).
2351 * Here we scan through the system's list of interfaces, looking for
2352 * any non-point-to-point interfaces which might appear to be on the same
2353 * network as `addr'. If we find any, we OR in their netmask to the
2354 * user-specified netmask.
2357 GetMask(u_int32_t addr)
2359 u_int32_t mask, nmask, ina;
2360 struct ifreq *ifr, *ifend, ifreq;
2365 if (IN_CLASSA(addr)) /* determine network mask for address class */
2366 nmask = IN_CLASSA_NET;
2367 else if (IN_CLASSB(addr))
2368 nmask = IN_CLASSB_NET;
2370 nmask = IN_CLASSC_NET;
2371 /* class D nets are disallowed by bad_ip_adrs */
2372 mask = netmask | htonl(nmask);
2375 * Scan through the system's network interfaces.
2378 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2381 ifc.ifc_len = nif * sizeof(struct ifreq);
2382 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2383 if (ifc.ifc_buf == 0)
2385 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2386 warn("Couldn't get system interface list: %m");
2390 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2391 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2393 * Check the interface's internet address.
2395 if (ifr->ifr_addr.sa_family != AF_INET)
2397 ina = INET_ADDR(ifr->ifr_addr);
2398 if ((ntohl(ina) & nmask) != (addr & nmask))
2401 * Check that the interface is up, and not point-to-point or loopback.
2403 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2404 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2406 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2410 * Get its netmask and OR it into our mask.
2412 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2414 mask |= INET_ADDR(ifreq.ifr_addr);
2422 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2425 logwtmp(const char *line, const char *name, const char *host)
2427 static struct utmpx utmpx;
2431 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2432 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2433 strncpy(utmpx.ut_host, host, sizeof(utmpx.ut_host));
2434 if (*host != '\0') {
2435 utmpx.ut_syslen = strlen(host) + 1;
2436 if (utmpx.ut_syslen > sizeof(utmpx.ut_host))
2437 utmpx.ut_syslen = sizeof(utmpx.ut_host);
2439 utmpx.ut_pid = getpid();
2440 utmpx.ut_type = USER_PROCESS;
2442 utmpx.ut_type = DEAD_PROCESS;
2444 gettimeofday(&utmpx.ut_tv, NULL);
2445 updwtmpx("/var/adm/wtmpx", &utmpx);
2449 * get_host_seed - return the serial number of this machine.
2456 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2457 error("sysinfo: %m");
2460 return (int) strtoul(buf, NULL, 16);
2464 strioctl(int fd, int cmd, void *ptr, int ilen, int olen)
2466 struct strioctl str;
2472 if (ioctl(fd, I_STR, &str) == -1)
2474 if (str.ic_len != olen)
2475 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2476 olen, str.ic_len, cmd);
2482 * lock - create a lock file for the named lock device
2485 #define LOCK_PREFIX "/var/spool/locks/LK."
2486 static char lock_file[40]; /* name of lock file created */
2495 if (stat(dev, &sbuf) < 0) {
2496 error("Can't get device number for %s: %m", dev);
2499 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2500 error("Can't lock %s: not a character device", dev);
2503 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2504 LOCK_PREFIX, major(sbuf.st_dev),
2505 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2507 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2509 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2510 /* Read the lock file to find out who has the device locked */
2511 n = read(fd, ascii_pid, 11);
2513 error("Can't read pid from lock file %s", lock_file);
2517 pid = atoi(ascii_pid);
2518 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2519 /* pid no longer exists - remove the lock file */
2520 if (unlink(lock_file) == 0) {
2522 notice("Removed stale lock on %s (pid %d)",
2526 warn("Couldn't remove stale lock on %s",
2529 notice("Device %s is locked by pid %d",
2534 error("Can't create lock file %s: %m", lock_file);
2539 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2540 write(fd, ascii_pid, 11);
2547 * unlock - remove our lockfile
2560 * cifroute - delete a route through the addresses given.
2563 cifroute(int u, u_int32_t our, u_int32_t his)
2567 memset(&rt, 0, sizeof(rt));
2568 rt.rt_dst.sa_family = AF_INET;
2569 INET_ADDR(rt.rt_dst) = his;
2570 rt.rt_gateway.sa_family = AF_INET;
2571 INET_ADDR(rt.rt_gateway) = our;
2572 rt.rt_flags = RTF_HOST;
2574 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2575 error("Can't delete route: %m");
2583 * have_route_to - determine if the system has a route to the specified
2584 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2585 * `addr' is in network byte order.
2586 * For demand mode to work properly, we have to ignore routes
2587 * through our own interface.
2589 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2590 #define T_CURRENT MI_T_CURRENT
2594 have_route_to(u_int32_t addr)
2597 int fd, r, flags, i;
2599 struct T_optmgmt_req req;
2603 struct T_optmgmt_ack ack;
2604 unsigned char space[64];
2607 struct strbuf cbuf, dbuf;
2609 mib2_ipRouteEntry_t routes[8];
2610 mib2_ipRouteEntry_t *rp;
2612 fd = open(mux_dev_name, O_RDWR);
2614 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2618 req.req.PRIM_type = T_OPTMGMT_REQ;
2619 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2620 req.req.OPT_length = sizeof(req.hdr);
2621 req.req.MGMT_flags = T_CURRENT;
2623 req.hdr.level = MIB2_IP;
2627 cbuf.buf = (char *) &req;
2628 cbuf.len = sizeof(req);
2630 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2631 warn("have_route_to: putmsg: %m");
2637 cbuf.buf = (char *) &ack;
2638 cbuf.maxlen = sizeof(ack);
2639 dbuf.buf = (char *) routes;
2640 dbuf.maxlen = sizeof(routes);
2642 r = getmsg(fd, &cbuf, &dbuf, &flags);
2644 warn("have_route_to: getmsg: %m");
2649 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2650 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2651 || ack.ack.MGMT_flags != T_SUCCESS
2652 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2653 dbglog("have_route_to: bad message len=%d prim=%d",
2654 cbuf.len, ack.ack.PRIM_type);
2659 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2660 if (rh->level == 0 && rh->name == 0)
2662 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2663 while (r == MOREDATA)
2664 r = getmsg(fd, NULL, &dbuf, &flags);
2669 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2670 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2671 if (rp->ipRouteMask != ~0) {
2672 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2673 rp->ipRouteDest, rp->ipRouteNextHop,
2675 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2676 && rp->ipRouteNextHop != remote_addr)
2682 r = getmsg(fd, NULL, &dbuf, &flags);
2693 * get_pty - get a pty master/slave pair and chown the slave side to
2694 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2697 get_pty(int *master_fdp, int *slave_fdp, char *slave_name, int uid)
2702 mfd = open("/dev/ptmx", O_RDWR);
2704 error("Couldn't open pty master: %m");
2708 pty_name = ptsname(mfd);
2709 if (pty_name == NULL) {
2710 error("Couldn't get name of pty slave");
2714 if (chown(pty_name, uid, -1) < 0)
2715 warn("Couldn't change owner of pty slave: %m");
2716 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2717 warn("Couldn't change permissions on pty slave: %m");
2718 if (unlockpt(mfd) < 0)
2719 warn("Couldn't unlock pty slave: %m");
2721 sfd = open(pty_name, O_RDWR);
2723 error("Couldn't open pty slave %s: %m", pty_name);
2727 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2728 warn("Couldn't push ptem module on pty slave: %m");
2730 dbglog("Using %s", pty_name);
2731 strlcpy(slave_name, pty_name, MAXPATHLEN);
2738 /********************************************************************
2740 * get_time - Get current time, monotonic if possible.
2743 get_time(struct timeval *tv)
2745 return gettimeofday(tv, NULL);