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 static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */
224 static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */
225 #define MAXIFS 256 /* Max # of interfaces */
226 #endif /* defined(INET6) && defined(SOL2) */
228 static int restore_term;
229 static struct termios inittermios;
231 static struct termiox inittermiox;
232 static int termiox_ok;
234 static struct winsize wsinfo; /* Initial window size info */
235 static pid_t tty_sid; /* original session ID for terminal */
237 extern u_char inpacket_buf[]; /* borrowed from main.c */
239 #define MAX_POLLFDS 32
240 static struct pollfd pollfds[MAX_POLLFDS];
241 static int n_pollfds;
243 static int link_mtu, link_mru;
246 static int tty_nmodules;
247 static char tty_modules[NMODULES][FMNAMESZ+1];
248 static int tty_npushed;
250 static int if_is_up; /* Interface has been marked up */
251 static u_int32_t remote_addr; /* IP address of peer */
252 static u_int32_t default_route_gateway; /* Gateway for default route added */
253 static eui64_t default_route_gateway6; /* Gateway for default IPv6 route added */
254 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
256 /* Prototypes for procedures local to this file. */
257 static int translate_speed(int);
258 static int baud_rate_of(int);
259 static int get_ether_addr(u_int32_t, struct sockaddr *);
260 static int get_hw_addr(char *, u_int32_t, struct sockaddr *);
261 static int get_hw_addr_dlpi(char *, struct sockaddr *);
262 static int dlpi_attach(int, int);
263 static int dlpi_info_req(int);
264 static int dlpi_get_reply(int, union DL_primitives *, int, int);
265 static int strioctl(int, int, void *, int, int);
269 * sifppa - Sets interface ppa
271 * without setting the ppa, ip module will return EINVAL upon setting the
272 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
273 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
274 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
275 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
276 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
277 * is required because the ppp DLPI provider advertises itself as
278 * a DLPI style 2 type, which requires a point of attachment to be
279 * specified. The only way the user can specify a point of attachment
280 * is via SIOCSLIFNAME or IF_UNITSEL.
282 * Such changes in the behavior of ip module was made to meet new or
283 * evolving standards requirements.
291 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
295 #if defined(SOL2) && defined(INET6)
297 * get_first_ethernet - returns the first Ethernet interface name found in
298 * the system, or NULL if none is found
300 * NOTE: This is the lifreq version (Solaris 8 and above)
303 get_first_ethernet(void)
307 struct lifreq *plifreq;
309 int fd, num_ifs, i, found;
313 fd = socket(AF_INET, SOCK_DGRAM, 0);
319 * Find out how many interfaces are running
321 lifn.lifn_family = AF_UNSPEC;
322 lifn.lifn_flags = LIFC_NOXMIT;
323 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
325 error("could not determine number of interfaces: %m");
329 num_ifs = lifn.lifn_count;
330 req_size = num_ifs * sizeof(struct lifreq);
331 req = malloc(req_size);
334 error("out of memory");
339 * Get interface configuration info for all interfaces
341 lifc.lifc_family = AF_UNSPEC;
342 lifc.lifc_flags = LIFC_NOXMIT;
343 lifc.lifc_len = req_size;
345 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
348 error("SIOCGLIFCONF: %m");
353 * And traverse each interface to look specifically for the first
354 * occurence of an Ethernet interface which has been marked up
356 plifreq = lifc.lifc_req;
358 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
360 if (strchr(plifreq->lifr_name, ':') != NULL)
363 memset(&lifr, 0, sizeof(lifr));
364 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
365 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
368 error("SIOCGLIFFLAGS: %m");
371 fl = lifr.lifr_flags;
373 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
374 != (IFF_UP | IFF_BROADCAST))
384 strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
385 return (char *)first_ether_name;
391 * get_first_ethernet - returns the first Ethernet interface name found in
392 * the system, or NULL if none is found
394 * NOTE: This is the ifreq version (before Solaris 8).
397 get_first_ethernet(void)
400 struct ifreq *pifreq;
402 int fd, num_ifs, i, found;
406 fd = socket(AF_INET, SOCK_DGRAM, 0);
412 * Find out how many interfaces are running
414 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
418 req_size = num_ifs * sizeof(struct ifreq);
419 req = malloc(req_size);
422 error("out of memory");
427 * Get interface configuration info for all interfaces
429 ifc.ifc_len = req_size;
431 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
434 error("SIOCGIFCONF: %m");
439 * And traverse each interface to look specifically for the first
440 * occurence of an Ethernet interface which has been marked up
442 pifreq = ifc.ifc_req;
444 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
446 if (strchr(pifreq->ifr_name, ':') != NULL)
449 memset(&ifr, 0, sizeof(ifr));
450 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
451 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
454 error("SIOCGIFFLAGS: %m");
459 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
460 != (IFF_UP | IFF_BROADCAST))
470 strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name));
471 return (char *)first_ether_name;
475 #endif /* defined(SOL2) && defined(INET6) */
479 * get_if_hwaddr - get the hardware address for the specified
480 * network interface device.
483 get_if_hwaddr(u_char *addr, char *if_name)
485 struct sockaddr s_eth_addr;
486 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
492 * Send DL_INFO_REQ to the driver to solicit its MAC address
494 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
495 error("could not obtain hardware address for %s", if_name);
499 memcpy(addr, eth_addr->ether_addr_octet, 6);
504 #if defined(SOL2) && defined(INET6)
506 * slifname - Sets interface ppa and flags
508 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
509 * be set in order to declare this as an IPv6 interface
512 slifname(int fd, int ppa)
517 memset(&lifr, 0, sizeof(lifr));
518 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
522 lifr.lifr_flags |= IFF_IPV6;
523 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
525 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
527 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
534 #endif /* defined(SOL2) && defined(INET6) */
537 * sys_init - System-dependent initialization.
544 #if defined(INET6) && defined(SOL2)
547 #endif /* defined(INET6) && defined(SOL2) */
550 union DL_primitives prim;
553 #endif /* !defined(SOL2) */
555 ipfd = open(mux_dev_name, O_RDWR, 0);
557 fatal("Couldn't open IP device: %m");
559 #if defined(INET6) && defined(SOL2)
560 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
562 fatal("Couldn't open IP device (2): %m");
563 #endif /* defined(INET6) && defined(SOL2) */
565 if (default_device && !notty)
566 tty_sid = getsid((pid_t)0);
568 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
570 fatal("Can't open %s: %m", PPP_DEV_NAME);
571 if (kdebugflag & 1) {
572 x = PPPDBG_LOG + PPPDBG_DRIVER;
573 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
576 /* Assign a new PPA and get its unit number. */
577 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
578 fatal("Can't create new PPP interface: %m");
582 * Since sys_init() is called prior to ifname being set in main(),
583 * we need to get the ifname now, otherwise slifname(), and others,
584 * will fail, or maybe, I should move them to a later point ?
585 * <adi.masputra@sun.com>
587 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
588 #endif /* defined(SOL2) */
590 * Open the ppp device again and link it under the ip multiplexor.
591 * IP will assign a unit number which hopefully is the same as ifunit.
592 * I don't know any way to be certain they will be the same. :-(
594 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
596 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
597 if (kdebugflag & 1) {
598 x = PPPDBG_LOG + PPPDBG_DRIVER;
599 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
602 #if defined(INET6) && defined(SOL2)
603 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
606 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
608 if (kdebugflag & 1) {
609 x = PPPDBG_LOG + PPPDBG_DRIVER;
610 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
612 #endif /* defined(INET6) && defined(SOL2) */
615 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
619 #endif /* defined(INET6) */
620 fatal("Can't push IP module: %m");
624 * Assign ppa according to the unit number returned by ppp device
625 * after plumbing is completed above.
627 if (sifppa(ifd, ifunit) < 0) {
631 #endif /* defined(INET6) */
632 fatal("Can't set ppa for unit %d: %m", ifunit);
637 * An IPv6 interface is created anyway, even when the user does not
638 * explicitly enable it. Note that the interface will be marked
639 * IPv6 during slifname().
641 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
644 fatal("Can't push IP module (2): %m");
648 * Assign ppa according to the unit number returned by ppp device
649 * after plumbing is completed above. In addition, mark the interface
650 * as an IPv6 interface.
652 if (slifname(i6fd, ifunit) < 0) {
655 fatal("Can't set ifname for unit %d: %m", ifunit);
657 #endif /* defined(INET6) */
659 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
664 #endif /* defined(INET6) */
665 fatal("Can't I_PLINK PPP device to IP: %m");
668 memset(&ifr, 0, sizeof(ifr));
669 sprintf(ifr.ifr_name, "%s", ifname);
670 ifr.ifr_ip_muxid = ipmuxid;
673 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
674 * This is so that an arbitrary module can be inserted, or deleted,
675 * between ip module and the device driver without tearing down the
676 * existing stream. Such feature requires the mux ids, which is set
677 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
679 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
680 ioctl(ipfd, I_PUNLINK, ipmuxid);
683 #endif /* defined(INET6) */
684 fatal("SIOCSIFMUXID: %m");
687 #else /* else if !defined(SOL2) */
689 if (dlpi_attach(ifd, ifunit) < 0 ||
690 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
692 fatal("Can't attach to ppp%d: %m", ifunit);
695 ipmuxid = ioctl(ipfd, I_LINK, ifd);
698 fatal("Can't link PPP device to IP: %m");
699 #endif /* defined(SOL2) */
701 #if defined(INET6) && defined(SOL2)
702 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
705 ioctl(ipfd, I_PUNLINK, ipmuxid);
706 fatal("Can't I_PLINK PPP device to IP (2): %m");
709 memset(&lifr, 0, sizeof(lifr));
710 sprintf(lifr.lifr_name, "%s", ifname);
711 lifr.lifr_ip_muxid = ip6muxid;
714 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
716 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
717 ioctl(ipfd, I_PUNLINK, ipmuxid);
718 ioctl(ip6fd, I_PUNLINK, ip6muxid);
719 fatal("Can't link PPP device to IP (2): %m");
721 #endif /* defined(INET6) && defined(SOL2) */
724 /* Set the interface name for the link. */
725 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
726 ifr.ifr_metric = ipmuxid;
727 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
728 fatal("Can't set interface name %s: %m", ifr.ifr_name);
729 #endif /* !defined(SOL2) */
735 * sys_cleanup - restore any system state we modified before exiting:
736 * mark the interface down, delete default route and/or proxy arp entry.
737 * This should call die() because it's called from die().
746 #endif /* defined(INET6) */
747 #endif /* defined(SOL2) */
749 #if defined(SOL2) && defined(INET6)
752 #endif /* defined(SOL2) && defined(INET6) */
755 if (default_route_gateway)
756 cifdefaultroute(0, default_route_gateway, default_route_gateway);
757 if (default_route_gateway6.e32[0] != 0 || default_route_gateway6.e32[1] != 0)
758 cif6defaultroute(0, default_route_gateway6, default_route_gateway6);
760 cifproxyarp(0, proxy_arp_addr);
763 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
764 * unlink and re-link the modules, causing the muxid to change.
766 memset(&ifr, 0, sizeof(ifr));
767 sprintf(ifr.ifr_name, "%s", ifname);
768 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
769 error("SIOCGIFFLAGS: %m");
773 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
774 error("SIOCGIFMUXID: %m");
778 ipmuxid = ifr.ifr_ip_muxid;
780 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
781 error("Can't I_PUNLINK PPP from IP: %m");
786 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
787 * unlink and re-link the modules, causing the muxid to change.
789 memset(&lifr, 0, sizeof(lifr));
790 sprintf(lifr.lifr_name, "%s", ifname);
791 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
792 error("SIOCGLIFFLAGS: %m");
796 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
797 error("SIOCGLIFMUXID: %m");
801 ip6muxid = lifr.lifr_ip_muxid;
803 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
804 error("Can't I_PUNLINK PPP from IP (2): %m");
806 #endif /* defined(INET6) */
807 #endif /* defined(SOL2) */
811 * sys_close - Clean up in a child process before execing.
817 #if defined(INET6) && defined(SOL2)
819 #endif /* defined(INET6) && defined(SOL2) */
825 * sys_check_options - check the options that the user specified
828 sys_check_options(void)
835 * daemon - Detach us from controlling terminal session.
838 daemon(int nochdir, int noclose)
842 if ((pid = fork()) < 0)
845 exit(0); /* parent dies */
850 fclose(stdin); /* don't need stdin, stdout, stderr */
859 * ppp_available - check whether the system has any ppp interfaces
866 return stat(PPP_DEV_NAME, &buf) >= 0;
870 * any_compressions - see if compression is enabled or not
872 * In the STREAMS implementation of kernel-portion pppd,
873 * the comp STREAMS module performs the ACFC, PFC, as well
874 * CCP and VJ compressions. However, if the user has explicitly
875 * declare to not enable them from the command line, there is
876 * no point of having the comp module be pushed on the stream.
879 any_compressions(void)
881 if ((!lcp_wantoptions[0].neg_accompression) &&
882 (!lcp_wantoptions[0].neg_pcompression) &&
883 (!ccp_protent.enabled_flag) &&
884 (!ipcp_wantoptions[0].neg_vj)) {
891 * tty_establish_ppp - Turn the serial port into a ppp interface.
894 tty_establish_ppp(int fd)
898 /* Pop any existing modules off the tty stream. */
900 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
901 || strcmp(tty_modules[i], "ptem") == 0
902 || ioctl(fd, I_POP, 0) < 0)
906 /* Push the async hdlc module and the compressor module. */
910 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
911 error("Couldn't push PPP Async HDLC module: %m");
916 if (kdebugflag & 4) {
917 i = PPPDBG_LOG + PPPDBG_AHDLC;
918 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
921 * There's no need to push comp module if we don't intend
922 * to compress anything
924 if (any_compressions()) {
925 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
926 error("Couldn't push PPP compression module: %m");
931 if (kdebugflag & 2) {
933 if (any_compressions())
935 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
938 /* Link the serial port under the PPP multiplexor. */
939 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
940 error("Can't link tty to PPP mux: %m");
948 * tty_disestablish_ppp - Restore the serial port to normal operation.
949 * It attempts to reconstruct the stream with the previously popped
950 * modules. This shouldn't call die() because it's called from die().
953 tty_disestablish_ppp(int fd)
958 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
960 error("Can't unlink tty from PPP mux: %m");
965 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
967 for (i = tty_nmodules - 1; i >= 0; --i)
968 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
969 error("Couldn't restore tty module %s: %m",
972 if (hungup && default_device && tty_sid > 0) {
974 * If we have received a hangup, we need to send a SIGHUP
975 * to the terminal's controlling process. The reason is
976 * that the original stream head for the terminal hasn't
977 * seen the M_HANGUP message (it went up through the ppp
978 * driver to the stream head for our fd to /dev/ppp).
980 kill(tty_sid, SIGHUP);
986 * Check whether the link seems not to be 8-bit clean.
994 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
999 s = "bit 7 set to 1";
1002 s = "bit 7 set to 0";
1012 warn("Serial link is not 8-bit clean:");
1013 warn("All received characters had %s", s);
1018 * List of valid speeds.
1021 int speed_int, speed_val;
1090 { 115200, B115200 },
1093 { 153600, B153600 },
1096 { 230400, B230400 },
1099 { 307200, B307200 },
1102 { 460800, B460800 },
1108 * Translate from bits/second to a speed_t.
1111 translate_speed(int bps)
1113 struct speed *speedp;
1117 for (speedp = speeds; speedp->speed_int; speedp++)
1118 if (bps == speedp->speed_int)
1119 return speedp->speed_val;
1120 warn("speed %d not supported", bps);
1125 * Translate from a speed_t to bits/second.
1128 baud_rate_of(int speed)
1130 struct speed *speedp;
1134 for (speedp = speeds; speedp->speed_int; speedp++)
1135 if (speed == speedp->speed_val)
1136 return speedp->speed_int;
1141 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1142 * at the requested speed, etc. If `local' is true, set CLOCAL
1143 * regardless of whether the modem option was specified.
1146 set_up_tty(int fd, int local)
1149 struct termios tios;
1150 #if !defined (CRTSCTS)
1151 struct termiox tiox;
1154 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1155 fatal("tcgetattr: %m");
1159 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1161 if (errno != ENOTTY)
1162 error("TCGETX: %m");
1166 if (!restore_term) {
1172 ioctl(fd, TIOCGWINSZ, &wsinfo);
1175 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1178 tios.c_cflag |= CRTSCTS;
1179 else if (crtscts < 0)
1180 tios.c_cflag &= ~CRTSCTS;
1182 if (crtscts != 0 && !termiox_ok) {
1183 error("Can't set RTS/CTS flow control");
1184 } else if (crtscts > 0) {
1185 tiox.x_hflag |= RTSXOFF|CTSXON;
1186 } else if (crtscts < 0) {
1187 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1192 tios.c_cflag |= CSTOPB;
1194 tios.c_cflag |= CS8 | CREAD | HUPCL;
1195 if (local || !modem)
1196 tios.c_cflag |= CLOCAL;
1197 tios.c_iflag = IGNBRK | IGNPAR;
1200 tios.c_cc[VMIN] = 1;
1201 tios.c_cc[VTIME] = 0;
1203 if (crtscts == -2) {
1204 tios.c_iflag |= IXON | IXOFF;
1205 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1206 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1209 speed = translate_speed(inspeed);
1211 cfsetospeed(&tios, speed);
1212 cfsetispeed(&tios, speed);
1214 speed = cfgetospeed(&tios);
1216 * We can't proceed if the serial port speed is 0,
1217 * since that implies that the serial port is disabled.
1219 if ((speed == B0) && !sync_serial)
1220 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1223 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1224 fatal("tcsetattr: %m");
1227 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1228 error("TCSETXF: %m");
1232 baud_rate = inspeed = baud_rate_of(speed);
1238 * restore_tty - restore the terminal to the saved settings.
1244 if (!default_device) {
1246 * Turn off echoing, because otherwise we can get into
1247 * a loop with the tty and the modem echoing to each other.
1248 * We presume we are the sole user of this tty device, so
1249 * when we close it, it will revert to its defaults anyway.
1251 inittermios.c_lflag &= ~(ECHO | ECHONL);
1253 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1254 if (!hungup && errno != ENXIO)
1255 warn("tcsetattr: %m");
1257 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1258 if (!hungup && errno != ENXIO)
1259 error("TCSETXF: %m");
1263 ioctl(fd, TIOCSWINSZ, &wsinfo);
1269 * setdtr - control the DTR line on the serial port.
1270 * This is called from die(), so it shouldn't call die().
1273 setdtr(int fd, int on)
1275 int modembits = TIOCM_DTR;
1277 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1281 * open_loopback - open the device we use for getting packets
1282 * in demand mode. Under Solaris 2, we use our existing fd
1283 * to the ppp driver.
1286 open_ppp_loopback(void)
1292 * output - Output PPP packet.
1295 output(int unit, u_char *p, int len)
1301 dump_packet("sent", p, len);
1302 if (snoop_send_hook) snoop_send_hook(p, len);
1305 data.buf = (caddr_t) p;
1307 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1308 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1310 error("Couldn't send packet: %m");
1314 pfd.events = POLLOUT;
1315 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1321 * wait_input - wait until there is data available,
1322 * for the length of time specified by *timo (indefinite
1326 wait_input(struct timeval *timo)
1330 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1331 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1336 * add_fd - add an fd to the set that wait_input waits for.
1342 for (n = 0; n < n_pollfds; ++n)
1343 if (pollfds[n].fd == fd)
1345 if (n_pollfds < MAX_POLLFDS) {
1346 pollfds[n_pollfds].fd = fd;
1347 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1350 error("Too many inputs!");
1354 * remove_fd - remove an fd from the set that wait_input waits for.
1356 void remove_fd(int fd)
1360 for (n = 0; n < n_pollfds; ++n) {
1361 if (pollfds[n].fd == fd) {
1362 while (++n < n_pollfds)
1363 pollfds[n-1] = pollfds[n];
1372 * wait_loop_output - wait until there is data available on the
1373 * loopback, for the length of time specified by *timo (indefinite
1377 wait_loop_output(struct timeval *timo)
1383 * wait_time - wait for a given length of time or until a
1384 * signal is received.
1387 wait_time(struct timeval *timo)
1391 n = select(0, NULL, NULL, NULL, timo);
1392 if (n < 0 && errno != EINTR)
1393 fatal("select: %m");
1399 * read_packet - get a PPP packet from the serial device.
1402 read_packet(u_char *buf)
1404 struct strbuf ctrl, data;
1406 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1409 data.maxlen = PPP_MRU + PPP_HDRLEN;
1410 data.buf = (caddr_t) buf;
1411 ctrl.maxlen = sizeof(ctrlbuf);
1412 ctrl.buf = (caddr_t) ctrlbuf;
1414 len = getmsg(pppfd, &ctrl, &data, &flags);
1416 if (errno == EAGAIN || errno == EINTR)
1418 fatal("Error reading packet: %m");
1425 * Got a M_PROTO or M_PCPROTO message. Interpret it
1426 * as a DLPI primitive??
1429 dbglog("got dlpi prim 0x%x, len=%d",
1430 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1436 * get_loop_output - get outgoing packets from the ppp device,
1437 * and detect when we want to bring the real link up.
1438 * Return value is 1 if we need to bring up the link, 0 otherwise.
1441 get_loop_output(void)
1446 while ((len = read_packet(inpacket_buf)) > 0) {
1447 if (loop_frame(inpacket_buf, len))
1454 * netif_set_mtu - set the MTU on the PPP network interface.
1457 netif_set_mtu(int unit, int mtu)
1460 #if defined(INET6) && defined(SOL2)
1463 #endif /* defined(INET6) && defined(SOL2) */
1465 memset(&ifr, 0, sizeof(ifr));
1466 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1467 ifr.ifr_metric = mtu;
1468 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1469 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1472 #if defined(INET6) && defined(SOL2)
1473 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1475 error("Couldn't open IPv6 socket: %m");
1477 memset(&lifr, 0, sizeof(lifr));
1478 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1479 lifr.lifr_mtu = mtu;
1480 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1482 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1485 #endif /* defined(INET6) && defined(SOL2) */
1491 * netif_get_mtu - get the MTU on the PPP network interface.
1494 netif_get_mtu(int unit)
1498 memset (&ifr, '\0', sizeof (ifr));
1499 strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
1501 if (ioctl(ipfd, SIOCGIFMTU, (caddr_t) &ifr) < 0) {
1502 error("ioctl(SIOCGIFMTU): %m (line %d)", __LINE__);
1509 * tty_send_config - configure the transmit characteristics of
1510 * the ppp interface.
1513 tty_send_config(int mtu, u_int32_t asyncmap, int pcomp, int accomp)
1518 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1519 if (hungup && errno == ENXIO) {
1523 error("Couldn't set MTU: %m");
1527 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1528 error("Couldn't set transmit ACCM: %m");
1530 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1531 cf[1] = COMP_PROT | COMP_AC;
1532 if (any_compressions() &&
1533 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1534 error("Couldn't set prot/AC compression: %m");
1539 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1542 tty_set_xaccm(ext_accm accm)
1548 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1549 if (!hungup || errno != ENXIO)
1550 warn("Couldn't set extended ACCM: %m");
1555 * tty_recv_config - configure the receive-side characteristics of
1556 * the ppp interface.
1559 tty_recv_config(int mru, u_int32_t asyncmap, int pcomp, int accomp)
1564 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1565 if (hungup && errno == ENXIO) {
1569 error("Couldn't set MRU: %m");
1573 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1574 error("Couldn't set receive ACCM: %m");
1576 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1577 cf[1] = DECOMP_PROT | DECOMP_AC;
1578 if (any_compressions() &&
1579 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1580 error("Couldn't set prot/AC decompression: %m");
1585 * ccp_test - ask kernel whether a given compression method
1586 * is acceptable for use.
1589 ccp_test(int unit, u_char *opt_ptr, int opt_len, int for_transmit)
1591 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1592 opt_ptr, opt_len, 0) >= 0)
1594 return (errno == ENOSR)? 0: -1;
1598 * ccp_flags_set - inform kernel about the current state of CCP.
1601 ccp_flags_set(int unit, int isopen, int isup)
1605 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1606 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1607 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1608 if (!hungup || errno != ENXIO)
1609 error("Couldn't set kernel CCP state: %m");
1614 * get_idle_time - return how long the link has been idle.
1617 get_idle_time(int u, struct ppp_idle *ip)
1619 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1623 * get_ppp_stats - return statistics for the link.
1626 get_ppp_stats(int u, struct pppd_stats *stats)
1631 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1632 error("Couldn't get link statistics: %m");
1635 stats->bytes_in = s.p.ppp_ibytes;
1636 stats->bytes_out = s.p.ppp_obytes;
1637 stats->pkts_in = s.p.ppp_ipackets;
1638 stats->pkts_out = s.p.ppp_opackets;
1644 * set_filters - transfer the pass and active filters to the kernel.
1647 set_filters(struct bpf_program *pass, struct bpf_program *active)
1651 if (pass->bf_len > 0) {
1652 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1653 sizeof(struct bpf_program), 0) < 0) {
1654 error("Couldn't set pass-filter in kernel: %m");
1658 if (active->bf_len > 0) {
1659 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1660 sizeof(struct bpf_program), 0) < 0) {
1661 error("Couldn't set active-filter in kernel: %m");
1670 * ccp_fatal_error - returns 1 if decompression was disabled as a
1671 * result of an error detected after decompression of a packet,
1672 * 0 otherwise. This is necessary because of patent nonsense.
1675 ccp_fatal_error(int unit)
1680 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1681 if (errno != ENXIO && errno != EINVAL)
1682 error("Couldn't get compression flags: %m");
1685 return cf[0] & CCP_FATALERROR;
1689 * sifvjcomp - config tcp header compression
1692 sifvjcomp(int u, int vjcomp, int xcidcomp, int xmaxcid)
1698 maxcid[0] = xcidcomp;
1699 maxcid[1] = 15; /* XXX should be rmaxcid */
1700 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1701 error("Couldn't initialize VJ compression: %m");
1705 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1706 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1707 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1708 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1710 error("Couldn't enable VJ compression: %m");
1717 * sifup - Config the interface up and enable IP packets to pass.
1724 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1725 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1726 error("Couldn't mark interface up (get): %m");
1729 ifr.ifr_flags |= IFF_UP;
1730 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1731 error("Couldn't mark interface up (set): %m");
1739 * sifdown - Config the interface down and disable IP.
1748 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1749 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1750 error("Couldn't mark interface down (get): %m");
1753 ifr.ifr_flags &= ~IFF_UP;
1754 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1755 error("Couldn't mark interface down (set): %m");
1763 * sifnpmode - Set the mode for handling packets for a given NP.
1766 sifnpmode(int u, int proto, enum NPmode mode)
1771 npi[1] = (int) mode;
1772 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1773 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1779 #if defined(SOL2) && defined(INET6)
1781 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1789 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1794 memset(&lifr, 0, sizeof(lifr));
1795 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1796 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1801 lifr.lifr_flags |= IFF_UP;
1802 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1803 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1814 * sifdown - Config the IPv6 interface down and disable IPv6.
1822 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1826 memset(&lifr, 0, sizeof(lifr));
1827 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1828 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1833 lifr.lifr_flags &= ~IFF_UP;
1834 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1835 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1846 * sif6addr - Config the interface with an IPv6 link-local address
1849 sif6addr(int u, eui64_t o, eui64_t h)
1852 struct sockaddr_storage laddr;
1853 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1856 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1860 memset(&lifr, 0, sizeof(lifr));
1861 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1864 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1865 * zero values, hence the interface token came to be zero too,
1866 * and without this, in.ndpd will complain
1868 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1869 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1875 * Set the interface address and destination address
1877 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1878 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1883 memset(&lifr, 0, sizeof(lifr));
1884 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1885 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1886 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1895 * cif6addr - Remove the IPv6 address from interface
1898 cif6addr(int u, eui64_t o, eui64_t h)
1904 * sif6defaultroute - assign a default route through the address given.
1907 sif6defaultroute(int u, eui64_t l, eui64_t g)
1910 struct rt_msghdr rtm;
1911 struct sockaddr_in6 dst;
1912 struct sockaddr_in6 gw;
1917 #if defined(__USLC__)
1918 g = l; /* use the local address as gateway */
1920 memset(&rmsg, 0, sizeof(rmsg));
1922 rmsg.rtm.rtm_msglen = sizeof (rmsg);
1923 rmsg.rtm.rtm_version = RTM_VERSION;
1924 rmsg.rtm.rtm_type = RTM_ADD;
1925 rmsg.rtm.rtm_flags = RTF_GATEWAY;
1926 rmsg.rtm.rtm_addrs = RTA_DST | RTA_GATEWAY;
1927 rmsg.rtm.rtm_pid = getpid();
1928 rmsg.rtm.rtm_seq = seq++;
1930 rmsg.dst.sin6_family = AF_INET6;
1932 rmsg.gw.sin6_family = AF_INET6;
1933 IN6_SOCKADDR_FROM_EUI64(&rmsg.gw, g);
1935 rtsock = socket(PF_ROUTE, SOCK_RAW, 0);
1938 error("Can't add default route: %m");
1942 if (write(rtsock, &rmsg, sizeof(rmsg)) < 0)
1943 error("Can't add default route: %m");
1947 default_route_gateway6 = g;
1952 * cif6defaultroute - delete a default route through the address given.
1955 cif6defaultroute(int u, eui64_t l, eui64_t g)
1957 /* No need to do this on Solaris; the kernel deletes the
1958 route when the interface goes down. */
1959 memset(&default_route_gateway6, 0, sizeof(default_route_gateway6));
1963 #endif /* defined(SOL2) && defined(INET6) */
1966 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1969 * sifaddr - Config the interface IP addresses and netmask.
1972 sifaddr(int u, u_int32_t o, u_int32_t h, u_int32_t m)
1977 memset(&ifr, 0, sizeof(ifr));
1978 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1979 ifr.ifr_addr.sa_family = AF_INET;
1980 INET_ADDR(ifr.ifr_addr) = m;
1981 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1982 error("Couldn't set IP netmask: %m");
1985 ifr.ifr_addr.sa_family = AF_INET;
1986 INET_ADDR(ifr.ifr_addr) = o;
1987 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1988 error("Couldn't set local IP address: %m");
1993 * On some systems, we have to explicitly set the point-to-point
1994 * flag bit before we can set a destination address.
1996 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1997 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1998 ifr.ifr_flags |= IFF_POINTOPOINT;
1999 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
2000 error("Couldn't mark interface pt-to-pt: %m");
2004 ifr.ifr_dstaddr.sa_family = AF_INET;
2005 INET_ADDR(ifr.ifr_dstaddr) = h;
2006 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2007 error("Couldn't set remote IP address: %m");
2016 * cifaddr - Clear the interface IP addresses, and delete routes
2017 * through the interface if possible.
2020 cifaddr(int u, u_int32_t o, u_int32_t h)
2022 #if defined(__USLC__) /* was: #if 0 */
2023 cifroute(unit, ouraddr, hisaddr);
2025 notice("Removing ppp interface unit");
2026 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2027 error("Can't remove ppp interface unit: %m");
2038 * sifdefaultroute - assign a default route through the address given.
2041 sifdefaultroute(int u, u_int32_t l, u_int32_t g)
2045 #if defined(__USLC__)
2046 g = l; /* use the local address as gateway */
2048 memset(&rt, 0, sizeof(rt));
2049 rt.rt_dst.sa_family = AF_INET;
2050 INET_ADDR(rt.rt_dst) = 0;
2051 rt.rt_gateway.sa_family = AF_INET;
2052 INET_ADDR(rt.rt_gateway) = g;
2053 rt.rt_flags = RTF_GATEWAY;
2055 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2056 error("Can't add default route: %m");
2060 default_route_gateway = g;
2065 * cifdefaultroute - delete a default route through the address given.
2068 cifdefaultroute(int u, u_int32_t l, u_int32_t g)
2072 #if defined(__USLC__)
2073 g = l; /* use the local address as gateway */
2075 memset(&rt, 0, sizeof(rt));
2076 rt.rt_dst.sa_family = AF_INET;
2077 INET_ADDR(rt.rt_dst) = 0;
2078 rt.rt_gateway.sa_family = AF_INET;
2079 INET_ADDR(rt.rt_gateway) = g;
2080 rt.rt_flags = RTF_GATEWAY;
2082 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2083 error("Can't delete default route: %m");
2087 default_route_gateway = 0;
2092 * sifproxyarp - Make a proxy ARP entry for the peer.
2095 sifproxyarp(int unit, u_int32_t hisaddr)
2097 struct arpreq arpreq;
2099 memset(&arpreq, 0, sizeof(arpreq));
2100 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2103 arpreq.arp_pa.sa_family = AF_INET;
2104 INET_ADDR(arpreq.arp_pa) = hisaddr;
2105 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2106 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2107 error("Couldn't set proxy ARP entry: %m");
2111 proxy_arp_addr = hisaddr;
2116 * cifproxyarp - Delete the proxy ARP entry for the peer.
2119 cifproxyarp(int unit, u_int32_t hisaddr)
2121 struct arpreq arpreq;
2123 memset(&arpreq, 0, sizeof(arpreq));
2124 arpreq.arp_pa.sa_family = AF_INET;
2125 INET_ADDR(arpreq.arp_pa) = hisaddr;
2126 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2127 error("Couldn't delete proxy ARP entry: %m");
2136 * get_ether_addr - get the hardware address of an interface on the
2137 * the same subnet as ipaddr.
2142 get_ether_addr(u_int32_t ipaddr, struct sockaddr *hwaddr)
2144 struct ifreq *ifr, *ifend, ifreq;
2147 u_int32_t ina, mask;
2150 * Scan through the system's network interfaces.
2153 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2156 ifc.ifc_len = nif * sizeof(struct ifreq);
2157 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2158 if (ifc.ifc_buf == 0)
2160 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2161 warn("Couldn't get system interface list: %m");
2165 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2166 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2167 if (ifr->ifr_addr.sa_family != AF_INET)
2170 * Check that the interface is up, and not point-to-point or loopback.
2172 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2173 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2175 if ((ifreq.ifr_flags &
2176 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2177 != (IFF_UP|IFF_BROADCAST))
2180 * Get its netmask and check that it's on the right subnet.
2182 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2184 ina = INET_ADDR(ifr->ifr_addr);
2185 mask = INET_ADDR(ifreq.ifr_addr);
2186 if ((ipaddr & mask) == (ina & mask))
2191 warn("No suitable interface found for proxy ARP");
2196 info("found interface %s for proxy ARP", ifr->ifr_name);
2197 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2198 error("Couldn't get hardware address for %s", ifr->ifr_name);
2208 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2211 get_hw_addr_dlpi(char *name, struct sockaddr *hwaddr)
2214 int unit, iffd, adrlen;
2215 unsigned char *adrp;
2218 union DL_primitives prim;
2223 * We have to open the device and ask it for its hardware address.
2224 * First split apart the device name and unit.
2226 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2227 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2234 * Open the device and do a DLPI attach and phys_addr_req.
2236 iffd = open(ifdev, O_RDWR);
2238 error("Can't open %s: %m", ifdev);
2241 if (dlpi_attach(iffd, unit) < 0
2242 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2243 || dlpi_info_req(iffd) < 0
2244 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2249 adrlen = reply.prim.info_ack.dl_addr_length;
2250 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2252 #if DL_CURRENT_VERSION >= 2
2253 if (reply.prim.info_ack.dl_sap_length < 0)
2254 adrlen += reply.prim.info_ack.dl_sap_length;
2256 adrp += reply.prim.info_ack.dl_sap_length;
2259 hwaddr->sa_family = AF_UNSPEC;
2260 memcpy(hwaddr->sa_data, adrp, adrlen);
2265 * get_hw_addr - obtain the hardware address for a named interface.
2268 get_hw_addr(char *name, u_int32_t ina, struct sockaddr *hwaddr)
2270 /* New way - get the address by doing an arp request. */
2274 s = socket(AF_INET, SOCK_DGRAM, 0);
2277 memset(&req, 0, sizeof(req));
2278 req.arp_pa.sa_family = AF_INET;
2279 INET_ADDR(req.arp_pa) = ina;
2280 if (ioctl(s, SIOCGARP, &req) < 0) {
2281 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2284 *hwaddr = req.arp_ha;
2285 hwaddr->sa_family = AF_UNSPEC;
2291 dlpi_attach(int fd, int ppa)
2293 dl_attach_req_t req;
2296 req.dl_primitive = DL_ATTACH_REQ;
2298 buf.len = sizeof(req);
2299 buf.buf = (void *) &req;
2300 return putmsg(fd, &buf, NULL, RS_HIPRI);
2304 dlpi_info_req(int fd)
2309 req.dl_primitive = DL_INFO_REQ;
2310 buf.len = sizeof(req);
2311 buf.buf = (void *) &req;
2312 return putmsg(fd, &buf, NULL, RS_HIPRI);
2316 dlpi_get_reply(int fd, union DL_primitives *reply, int expected_prim, maxlen)
2323 * Use poll to wait for a message with a timeout.
2326 pfd.events = POLLIN | POLLPRI;
2328 n = poll(&pfd, 1, 1000);
2329 } while (n == -1 && errno == EINTR && !got_sigterm);
2336 buf.maxlen = maxlen;
2337 buf.buf = (void *) reply;
2339 if (getmsg(fd, &buf, NULL, &flags) < 0)
2342 if (buf.len < sizeof(ulong)) {
2344 dbglog("dlpi response short (len=%d)\n", buf.len);
2348 if (reply->dl_primitive == expected_prim)
2352 if (reply->dl_primitive == DL_ERROR_ACK) {
2353 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2354 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2355 reply->error_ack.dl_error_primitive);
2357 dbglog("dlpi unexpected response prim %x\n",
2358 reply->dl_primitive);
2366 * Return user specified netmask, modified by any mask we might determine
2367 * for address `addr' (in network byte order).
2368 * Here we scan through the system's list of interfaces, looking for
2369 * any non-point-to-point interfaces which might appear to be on the same
2370 * network as `addr'. If we find any, we OR in their netmask to the
2371 * user-specified netmask.
2374 GetMask(u_int32_t addr)
2376 u_int32_t mask, nmask, ina;
2377 struct ifreq *ifr, *ifend, ifreq;
2382 if (IN_CLASSA(addr)) /* determine network mask for address class */
2383 nmask = IN_CLASSA_NET;
2384 else if (IN_CLASSB(addr))
2385 nmask = IN_CLASSB_NET;
2387 nmask = IN_CLASSC_NET;
2388 /* class D nets are disallowed by bad_ip_adrs */
2389 mask = netmask | htonl(nmask);
2392 * Scan through the system's network interfaces.
2395 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2398 ifc.ifc_len = nif * sizeof(struct ifreq);
2399 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2400 if (ifc.ifc_buf == 0)
2402 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2403 warn("Couldn't get system interface list: %m");
2407 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2408 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2410 * Check the interface's internet address.
2412 if (ifr->ifr_addr.sa_family != AF_INET)
2414 ina = INET_ADDR(ifr->ifr_addr);
2415 if ((ntohl(ina) & nmask) != (addr & nmask))
2418 * Check that the interface is up, and not point-to-point or loopback.
2420 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2421 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2423 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2427 * Get its netmask and OR it into our mask.
2429 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2431 mask |= INET_ADDR(ifreq.ifr_addr);
2439 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2442 logwtmp(const char *line, const char *name, const char *host)
2444 static struct utmpx utmpx;
2448 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2449 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2450 strncpy(utmpx.ut_host, host, sizeof(utmpx.ut_host));
2451 if (*host != '\0') {
2452 utmpx.ut_syslen = strlen(host) + 1;
2453 if (utmpx.ut_syslen > sizeof(utmpx.ut_host))
2454 utmpx.ut_syslen = sizeof(utmpx.ut_host);
2456 utmpx.ut_pid = getpid();
2457 utmpx.ut_type = USER_PROCESS;
2459 utmpx.ut_type = DEAD_PROCESS;
2461 gettimeofday(&utmpx.ut_tv, NULL);
2462 updwtmpx("/var/adm/wtmpx", &utmpx);
2466 * get_host_seed - return the serial number of this machine.
2473 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2474 error("sysinfo: %m");
2477 return (int) strtoul(buf, NULL, 16);
2481 strioctl(int fd, int cmd, void *ptr, int ilen, int olen)
2483 struct strioctl str;
2489 if (ioctl(fd, I_STR, &str) == -1)
2491 if (str.ic_len != olen)
2492 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2493 olen, str.ic_len, cmd);
2499 * lock - create a lock file for the named lock device
2502 #define LOCK_PREFIX "/var/spool/locks/LK."
2503 static char lock_file[40]; /* name of lock file created */
2512 if (stat(dev, &sbuf) < 0) {
2513 error("Can't get device number for %s: %m", dev);
2516 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2517 error("Can't lock %s: not a character device", dev);
2520 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2521 LOCK_PREFIX, major(sbuf.st_dev),
2522 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2524 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2526 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2527 /* Read the lock file to find out who has the device locked */
2528 n = read(fd, ascii_pid, 11);
2530 error("Can't read pid from lock file %s", lock_file);
2534 pid = atoi(ascii_pid);
2535 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2536 /* pid no longer exists - remove the lock file */
2537 if (unlink(lock_file) == 0) {
2539 notice("Removed stale lock on %s (pid %d)",
2543 warn("Couldn't remove stale lock on %s",
2546 notice("Device %s is locked by pid %d",
2551 error("Can't create lock file %s: %m", lock_file);
2556 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2557 write(fd, ascii_pid, 11);
2564 * unlock - remove our lockfile
2577 * cifroute - delete a route through the addresses given.
2580 cifroute(int u, u_int32_t our, u_int32_t his)
2584 memset(&rt, 0, sizeof(rt));
2585 rt.rt_dst.sa_family = AF_INET;
2586 INET_ADDR(rt.rt_dst) = his;
2587 rt.rt_gateway.sa_family = AF_INET;
2588 INET_ADDR(rt.rt_gateway) = our;
2589 rt.rt_flags = RTF_HOST;
2591 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2592 error("Can't delete route: %m");
2600 * have_route_to - determine if the system has a route to the specified
2601 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2602 * `addr' is in network byte order.
2603 * For demand mode to work properly, we have to ignore routes
2604 * through our own interface.
2606 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2607 #define T_CURRENT MI_T_CURRENT
2611 have_route_to(u_int32_t addr)
2614 int fd, r, flags, i;
2616 struct T_optmgmt_req req;
2620 struct T_optmgmt_ack ack;
2621 unsigned char space[64];
2624 struct strbuf cbuf, dbuf;
2626 mib2_ipRouteEntry_t routes[8];
2627 mib2_ipRouteEntry_t *rp;
2629 fd = open(mux_dev_name, O_RDWR);
2631 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2635 req.req.PRIM_type = T_OPTMGMT_REQ;
2636 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2637 req.req.OPT_length = sizeof(req.hdr);
2638 req.req.MGMT_flags = T_CURRENT;
2640 req.hdr.level = MIB2_IP;
2644 cbuf.buf = (char *) &req;
2645 cbuf.len = sizeof(req);
2647 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2648 warn("have_route_to: putmsg: %m");
2654 cbuf.buf = (char *) &ack;
2655 cbuf.maxlen = sizeof(ack);
2656 dbuf.buf = (char *) routes;
2657 dbuf.maxlen = sizeof(routes);
2659 r = getmsg(fd, &cbuf, &dbuf, &flags);
2661 warn("have_route_to: getmsg: %m");
2666 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2667 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2668 || ack.ack.MGMT_flags != T_SUCCESS
2669 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2670 dbglog("have_route_to: bad message len=%d prim=%d",
2671 cbuf.len, ack.ack.PRIM_type);
2676 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2677 if (rh->level == 0 && rh->name == 0)
2679 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2680 while (r == MOREDATA)
2681 r = getmsg(fd, NULL, &dbuf, &flags);
2686 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2687 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2688 if (rp->ipRouteMask != ~0) {
2689 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2690 rp->ipRouteDest, rp->ipRouteNextHop,
2692 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2693 && rp->ipRouteNextHop != remote_addr)
2699 r = getmsg(fd, NULL, &dbuf, &flags);
2710 * get_pty - get a pty master/slave pair and chown the slave side to
2711 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2714 get_pty(int *master_fdp, int *slave_fdp, char *slave_name, int uid)
2719 mfd = open("/dev/ptmx", O_RDWR);
2721 error("Couldn't open pty master: %m");
2725 pty_name = ptsname(mfd);
2726 if (pty_name == NULL) {
2727 error("Couldn't get name of pty slave");
2731 if (chown(pty_name, uid, -1) < 0)
2732 warn("Couldn't change owner of pty slave: %m");
2733 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2734 warn("Couldn't change permissions on pty slave: %m");
2735 if (unlockpt(mfd) < 0)
2736 warn("Couldn't unlock pty slave: %m");
2738 sfd = open(pty_name, O_RDWR);
2740 error("Couldn't open pty slave %s: %m", pty_name);
2744 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2745 warn("Couldn't push ptem module on pty slave: %m");
2747 dbglog("Using %s", pty_name);
2748 strlcpy(slave_name, pty_name, MAXPATHLEN);
2755 /********************************************************************
2757 * get_time - Get current time, monotonic if possible.
2760 get_time(struct timeval *tv)
2762 return gettimeofday(tv, NULL);