2 * System-dependent procedures for pppd under Solaris 2.
4 * Parts re-written by Adi Masputra <adi.masputra@sun.com>, based on
5 * the original sys-svr4.c
7 * Copyright (c) 2000 by Sun Microsystems, Inc.
10 * Permission to use, copy, modify, and distribute this software and its
11 * documentation is hereby granted, provided that the above copyright
12 * notice appears in all copies.
14 * SUN MAKES NO REPRESENTATION OR WARRANTIES ABOUT THE SUITABILITY OF
15 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
16 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
17 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
18 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
19 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES
21 * Copyright (c) 1995-2002 Paul Mackerras. All rights reserved.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
27 * 1. Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
30 * 2. The name(s) of the authors of this software must not be used to
31 * endorse or promote products derived from this software without
32 * prior written permission.
34 * 3. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by Paul Mackerras
37 * <paulus@samba.org>".
39 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
40 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
41 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
42 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
43 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
44 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
45 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
47 * Derived from main.c and pppd.h, which are:
49 * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
51 * Redistribution and use in source and binary forms, with or without
52 * modification, are permitted provided that the following conditions
55 * 1. Redistributions of source code must retain the above copyright
56 * notice, this list of conditions and the following disclaimer.
58 * 2. Redistributions in binary form must reproduce the above copyright
59 * notice, this list of conditions and the following disclaimer in
60 * the documentation and/or other materials provided with the
63 * 3. The name "Carnegie Mellon University" must not be used to
64 * endorse or promote products derived from this software without
65 * prior written permission. For permission or any legal
66 * details, please contact
67 * Office of Technology Transfer
68 * Carnegie Mellon University
70 * Pittsburgh, PA 15213-3890
71 * (412) 268-4387, fax: (412) 268-7395
72 * tech-transfer@andrew.cmu.edu
74 * 4. Redistributions of any form whatsoever must retain the following
76 * "This product includes software developed by Computing Services
77 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
79 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
80 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
81 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
82 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
83 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
84 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
85 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
88 #define RCSID "$Id: sys-svr4.c,v 1.46 2004/11/04 10:02:26 paulus Exp $"
100 #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>
116 #include <net/if_arp.h>
117 #include <net/route.h>
118 #include <net/ppp_defs.h>
119 #include <net/pppio.h>
120 #include <netinet/in.h>
122 #include <sys/tihdr.h>
123 #include <sys/tiuser.h>
124 #include <inet/common.h>
125 #include <inet/mib2.h>
126 #include <sys/ethernet.h>
135 #if !defined(PPP_DEV_NAME)
136 #define PPP_DEV_NAME "/dev/ppp"
137 #endif /* !defined(PPP_DEV_NAME) */
139 #if !defined(AHDLC_MOD_NAME)
140 #define AHDLC_MOD_NAME "ppp_ahdl"
141 #endif /* !defined(AHDLC_MOD_NAME) */
143 #if !defined(COMP_MOD_NAME)
144 #define COMP_MOD_NAME "ppp_comp"
145 #endif /* !defined(COMP_MOD_NAME) */
147 #if !defined(IP_DEV_NAME)
148 #define IP_DEV_NAME "/dev/ip"
149 #endif /* !defined(IP_DEV_NAME) */
151 #if !defined(IP_MOD_NAME)
152 #define IP_MOD_NAME "ip"
153 #endif /* !defined(IP_MOD_NAME) */
155 #if !defined(UDP_DEV_NAME) && defined(SOL2)
156 #define UDP_DEV_NAME "/dev/udp"
157 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
159 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
160 #define UDP6_DEV_NAME "/dev/udp6"
161 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
163 static const char rcsid[] = RCSID;
167 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
168 * under. It is used in place of "/dev/ip" since STREAMS will not let
169 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
170 * driver at the bottom of the tunneling interfaces stream.
172 static char *mux_dev_name = UDP_DEV_NAME;
174 static char *mux_dev_name = IP_DEV_NAME;
177 static int fdmuxid = -1;
179 static int ipmuxid = -1;
181 #if defined(INET6) && defined(SOL2)
182 static int ip6fd; /* IP file descriptor */
183 static int ip6muxid = -1; /* Multiplexer file descriptor */
184 static int if6_is_up = 0; /* IPv6 interface has been marked up */
186 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
187 s->sin6_addr.s6_addr32[0] = htonl(as); \
188 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
189 s->sin6_family = AF_INET6; \
190 l.lifr_addr.ss_family = AF_INET6; \
191 l.lifr_addrlen = 10; \
192 l.lifr_addr = laddr; \
195 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
196 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
198 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
199 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
201 #endif /* defined(INET6) && defined(SOL2) */
203 #if defined(INET6) && defined(SOL2)
204 static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */
206 static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */
207 #define MAXIFS 256 /* Max # of interfaces */
208 #endif /* defined(INET6) && defined(SOL2) */
210 static int restore_term;
211 static struct termios inittermios;
213 static struct termiox inittermiox;
214 static int termiox_ok;
216 static struct winsize wsinfo; /* Initial window size info */
217 static pid_t tty_sid; /* original session ID for terminal */
219 extern u_char inpacket_buf[]; /* borrowed from main.c */
221 #define MAX_POLLFDS 32
222 static struct pollfd pollfds[MAX_POLLFDS];
223 static int n_pollfds;
225 static int link_mtu, link_mru;
228 static int tty_nmodules;
229 static char tty_modules[NMODULES][FMNAMESZ+1];
230 static int tty_npushed;
232 static int if_is_up; /* Interface has been marked up */
233 static u_int32_t remote_addr; /* IP address of peer */
234 static u_int32_t default_route_gateway; /* Gateway for default route added */
235 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
237 /* Prototypes for procedures local to this file. */
238 static int translate_speed __P((int));
239 static int baud_rate_of __P((int));
240 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
241 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
242 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
243 static int dlpi_attach __P((int, int));
244 static int dlpi_info_req __P((int));
245 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
246 static int strioctl __P((int, int, void *, int, int));
250 * sifppa - Sets interface ppa
252 * without setting the ppa, ip module will return EINVAL upon setting the
253 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
254 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
255 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
256 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
257 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
258 * is required because the ppp DLPI provider advertises itself as
259 * a DLPI style 2 type, which requires a point of attachment to be
260 * specified. The only way the user can specify a point of attachment
261 * is via SIOCSLIFNAME or IF_UNITSEL.
263 * Such changes in the behavior of ip module was made to meet new or
264 * evolving standards requirements.
272 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
276 #if defined(SOL2) && defined(INET6)
278 * get_first_ethernet - returns the first Ethernet interface name found in
279 * the system, or NULL if none is found
281 * NOTE: This is the lifreq version (Solaris 8 and above)
288 struct lifreq *plifreq;
290 int fd, num_ifs, i, found;
294 fd = socket(AF_INET, SOCK_DGRAM, 0);
300 * Find out how many interfaces are running
302 lifn.lifn_family = AF_UNSPEC;
303 lifn.lifn_flags = LIFC_NOXMIT;
304 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
306 error("could not determine number of interfaces: %m");
310 num_ifs = lifn.lifn_count;
311 req_size = num_ifs * sizeof(struct lifreq);
312 req = malloc(req_size);
315 error("out of memory");
320 * Get interface configuration info for all interfaces
322 lifc.lifc_family = AF_UNSPEC;
323 lifc.lifc_flags = LIFC_NOXMIT;
324 lifc.lifc_len = req_size;
326 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
329 error("SIOCGLIFCONF: %m");
334 * And traverse each interface to look specifically for the first
335 * occurence of an Ethernet interface which has been marked up
337 plifreq = lifc.lifc_req;
339 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
341 if (strchr(plifreq->lifr_name, ':') != NULL)
344 memset(&lifr, 0, sizeof(lifr));
345 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
346 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
349 error("SIOCGLIFFLAGS: %m");
352 fl = lifr.lifr_flags;
354 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
355 != (IFF_UP | IFF_BROADCAST))
365 strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
366 return (char *)first_ether_name;
372 * get_first_ethernet - returns the first Ethernet interface name found in
373 * the system, or NULL if none is found
375 * NOTE: This is the ifreq version (before Solaris 8).
381 struct ifreq *pifreq;
383 int fd, num_ifs, i, found;
387 fd = socket(AF_INET, SOCK_DGRAM, 0);
393 * Find out how many interfaces are running
395 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
399 req_size = num_ifs * sizeof(struct ifreq);
400 req = malloc(req_size);
403 error("out of memory");
408 * Get interface configuration info for all interfaces
410 ifc.ifc_len = req_size;
412 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
415 error("SIOCGIFCONF: %m");
420 * And traverse each interface to look specifically for the first
421 * occurence of an Ethernet interface which has been marked up
423 pifreq = ifc.ifc_req;
425 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
427 if (strchr(pifreq->ifr_name, ':') != NULL)
430 memset(&ifr, 0, sizeof(ifr));
431 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
432 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
435 error("SIOCGIFFLAGS: %m");
440 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
441 != (IFF_UP | IFF_BROADCAST))
451 strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name));
452 return (char *)first_ether_name;
456 #endif /* defined(SOL2) && defined(INET6) */
460 * get_if_hwaddr - get the hardware address for the specified
461 * network interface device.
464 get_if_hwaddr(u_char *addr, char *if_name)
466 struct sockaddr s_eth_addr;
467 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
473 * Send DL_INFO_REQ to the driver to solicit its MAC address
475 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
476 error("could not obtain hardware address for %s", if_name);
480 memcpy(addr, eth_addr->ether_addr_octet, 6);
485 #if defined(SOL2) && defined(INET6)
487 * slifname - Sets interface ppa and flags
489 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
490 * be set in order to declare this as an IPv6 interface
500 memset(&lifr, 0, sizeof(lifr));
501 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
505 lifr.lifr_flags |= IFF_IPV6;
506 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
508 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
510 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
520 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
522 * walks the list of valid ethernet interfaces, and convert the first
523 * found 48-bit MAC address into EUI 64. caller also assumes that
524 * the system has a properly configured Ethernet interface for this
525 * function to return non-zero.
528 ether_to_eui64(eui64_t *p_eui64)
530 struct sockaddr s_eth_addr;
531 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
534 if ((if_name = get_first_ethernet()) == NULL) {
535 error("no persistent id can be found");
540 * Send DL_INFO_REQ to the driver to solicit its MAC address
542 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
543 error("could not obtain hardware address for %s", if_name);
548 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
550 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
551 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
552 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
553 p_eui64->e8[3] = 0xFF;
554 p_eui64->e8[4] = 0xFE;
555 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
556 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
557 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
561 #endif /* defined(SOL2) && defined(INET6) */
564 * sys_init - System-dependent initialization.
571 #if defined(INET6) && defined(SOL2)
574 #endif /* defined(INET6) && defined(SOL2) */
577 union DL_primitives prim;
580 #endif /* !defined(SOL2) */
582 ipfd = open(mux_dev_name, O_RDWR, 0);
584 fatal("Couldn't open IP device: %m");
586 #if defined(INET6) && defined(SOL2)
587 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
589 fatal("Couldn't open IP device (2): %m");
590 #endif /* defined(INET6) && defined(SOL2) */
592 if (default_device && !notty)
593 tty_sid = getsid((pid_t)0);
595 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
597 fatal("Can't open %s: %m", PPP_DEV_NAME);
598 if (kdebugflag & 1) {
599 x = PPPDBG_LOG + PPPDBG_DRIVER;
600 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
603 /* Assign a new PPA and get its unit number. */
604 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
605 fatal("Can't create new PPP interface: %m");
609 * Since sys_init() is called prior to ifname being set in main(),
610 * we need to get the ifname now, otherwise slifname(), and others,
611 * will fail, or maybe, I should move them to a later point ?
612 * <adi.masputra@sun.com>
614 sprintf(ifname, "ppp%d", ifunit);
615 #endif /* defined(SOL2) */
617 * Open the ppp device again and link it under the ip multiplexor.
618 * IP will assign a unit number which hopefully is the same as ifunit.
619 * I don't know any way to be certain they will be the same. :-(
621 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
623 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
624 if (kdebugflag & 1) {
625 x = PPPDBG_LOG + PPPDBG_DRIVER;
626 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
629 #if defined(INET6) && defined(SOL2)
630 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
633 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
635 if (kdebugflag & 1) {
636 x = PPPDBG_LOG + PPPDBG_DRIVER;
637 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
639 #endif /* defined(INET6) && defined(SOL2) */
642 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
646 #endif /* defined(INET6) */
647 fatal("Can't push IP module: %m");
651 * Assign ppa according to the unit number returned by ppp device
652 * after plumbing is completed above.
654 if (sifppa(ifd, ifunit) < 0) {
658 #endif /* defined(INET6) */
659 fatal("Can't set ppa for unit %d: %m", ifunit);
664 * An IPv6 interface is created anyway, even when the user does not
665 * explicitly enable it. Note that the interface will be marked
666 * IPv6 during slifname().
668 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
671 fatal("Can't push IP module (2): %m");
675 * Assign ppa according to the unit number returned by ppp device
676 * after plumbing is completed above. In addition, mark the interface
677 * as an IPv6 interface.
679 if (slifname(i6fd, ifunit) < 0) {
682 fatal("Can't set ifname for unit %d: %m", ifunit);
684 #endif /* defined(INET6) */
686 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
691 #endif /* defined(INET6) */
692 fatal("Can't I_PLINK PPP device to IP: %m");
695 memset(&ifr, 0, sizeof(ifr));
696 sprintf(ifr.ifr_name, "%s", ifname);
697 ifr.ifr_ip_muxid = ipmuxid;
700 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
701 * This is so that an arbitrary module can be inserted, or deleted,
702 * between ip module and the device driver without tearing down the
703 * existing stream. Such feature requires the mux ids, which is set
704 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
706 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
707 ioctl(ipfd, I_PUNLINK, ipmuxid);
710 #endif /* defined(INET6) */
711 fatal("SIOCSIFMUXID: %m");
714 #else /* else if !defined(SOL2) */
716 if (dlpi_attach(ifd, ifunit) < 0 ||
717 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
719 fatal("Can't attach to ppp%d: %m", ifunit);
722 ipmuxid = ioctl(ipfd, I_LINK, ifd);
725 fatal("Can't link PPP device to IP: %m");
726 #endif /* defined(SOL2) */
728 #if defined(INET6) && defined(SOL2)
729 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
732 ioctl(ipfd, I_PUNLINK, ipmuxid);
733 fatal("Can't I_PLINK PPP device to IP (2): %m");
736 memset(&lifr, 0, sizeof(lifr));
737 sprintf(lifr.lifr_name, "%s", ifname);
738 lifr.lifr_ip_muxid = ip6muxid;
741 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
743 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
744 ioctl(ipfd, I_PUNLINK, ipmuxid);
745 ioctl(ip6fd, I_PUNLINK, ip6muxid);
746 fatal("Can't link PPP device to IP (2): %m");
748 #endif /* defined(INET6) && defined(SOL2) */
751 /* Set the interface name for the link. */
752 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "ppp%d", ifunit);
753 ifr.ifr_metric = ipmuxid;
754 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
755 fatal("Can't set interface name %s: %m", ifr.ifr_name);
756 #endif /* !defined(SOL2) */
762 * sys_cleanup - restore any system state we modified before exiting:
763 * mark the interface down, delete default route and/or proxy arp entry.
764 * This should call die() because it's called from die().
773 #endif /* defined(INET6) */
774 #endif /* defined(SOL2) */
776 #if defined(SOL2) && defined(INET6)
779 #endif /* defined(SOL2) && defined(INET6) */
782 if (default_route_gateway)
783 cifdefaultroute(0, default_route_gateway, default_route_gateway);
785 cifproxyarp(0, proxy_arp_addr);
788 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
789 * unlink and re-link the modules, causing the muxid to change.
791 memset(&ifr, 0, sizeof(ifr));
792 sprintf(ifr.ifr_name, "%s", ifname);
793 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
794 error("SIOCGIFFLAGS: %m");
798 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
799 error("SIOCGIFMUXID: %m");
803 ipmuxid = ifr.ifr_ip_muxid;
805 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
806 error("Can't I_PUNLINK PPP from IP: %m");
811 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
812 * unlink and re-link the modules, causing the muxid to change.
814 memset(&lifr, 0, sizeof(lifr));
815 sprintf(lifr.lifr_name, "%s", ifname);
816 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
817 error("SIOCGLIFFLAGS: %m");
821 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
822 error("SIOCGLIFMUXID: %m");
826 ip6muxid = lifr.lifr_ip_muxid;
828 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
829 error("Can't I_PUNLINK PPP from IP (2): %m");
831 #endif /* defined(INET6) */
832 #endif /* defined(SOL2) */
836 * sys_close - Clean up in a child process before execing.
842 #if defined(INET6) && defined(SOL2)
844 #endif /* defined(INET6) && defined(SOL2) */
850 * sys_check_options - check the options that the user specified
860 * daemon - Detach us from controlling terminal session.
863 daemon(nochdir, noclose)
864 int nochdir, noclose;
868 if ((pid = fork()) < 0)
871 exit(0); /* parent dies */
876 fclose(stdin); /* don't need stdin, stdout, stderr */
885 * ppp_available - check whether the system has any ppp interfaces
892 return stat(PPP_DEV_NAME, &buf) >= 0;
896 * any_compressions - see if compression is enabled or not
898 * In the STREAMS implementation of kernel-portion pppd,
899 * the comp STREAMS module performs the ACFC, PFC, as well
900 * CCP and VJ compressions. However, if the user has explicitly
901 * declare to not enable them from the command line, there is
902 * no point of having the comp module be pushed on the stream.
907 if ((!lcp_wantoptions[0].neg_accompression) &&
908 (!lcp_wantoptions[0].neg_pcompression) &&
909 (!ccp_protent.enabled_flag) &&
910 (!ipcp_wantoptions[0].neg_vj)) {
917 * establish_ppp - Turn the serial port into a ppp interface.
925 /* Pop any existing modules off the tty stream. */
927 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
928 || strcmp(tty_modules[i], "ptem") == 0
929 || ioctl(fd, I_POP, 0) < 0)
933 /* Push the async hdlc module and the compressor module. */
937 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
938 error("Couldn't push PPP Async HDLC module: %m");
943 if (kdebugflag & 4) {
944 i = PPPDBG_LOG + PPPDBG_AHDLC;
945 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
948 * There's no need to push comp module if we don't intend
949 * to compress anything
951 if (any_compressions()) {
952 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
953 error("Couldn't push PPP compression module: %m");
958 if (kdebugflag & 2) {
960 if (any_compressions())
962 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
965 /* Link the serial port under the PPP multiplexor. */
966 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
967 error("Can't link tty to PPP mux: %m");
975 * restore_loop - reattach the ppp unit to the loopback.
976 * This doesn't need to do anything because disestablish_ppp does it.
984 * disestablish_ppp - Restore the serial port to normal operation.
985 * It attempts to reconstruct the stream with the previously popped
986 * modules. This shouldn't call die() because it's called from die().
995 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
997 error("Can't unlink tty from PPP mux: %m");
1002 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
1004 for (i = tty_nmodules - 1; i >= 0; --i)
1005 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
1006 error("Couldn't restore tty module %s: %m",
1009 if (hungup && default_device && tty_sid > 0) {
1011 * If we have received a hangup, we need to send a SIGHUP
1012 * to the terminal's controlling process. The reason is
1013 * that the original stream head for the terminal hasn't
1014 * seen the M_HANGUP message (it went up through the ppp
1015 * driver to the stream head for our fd to /dev/ppp).
1017 kill(tty_sid, SIGHUP);
1023 * Check whether the link seems not to be 8-bit clean.
1031 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
1036 s = "bit 7 set to 1";
1039 s = "bit 7 set to 0";
1049 warn("Serial link is not 8-bit clean:");
1050 warn("All received characters had %s", s);
1055 * List of valid speeds.
1058 int speed_int, speed_val;
1127 { 115200, B115200 },
1130 { 153600, B153600 },
1133 { 230400, B230400 },
1136 { 307200, B307200 },
1139 { 460800, B460800 },
1145 * Translate from bits/second to a speed_t.
1148 translate_speed(bps)
1151 struct speed *speedp;
1155 for (speedp = speeds; speedp->speed_int; speedp++)
1156 if (bps == speedp->speed_int)
1157 return speedp->speed_val;
1158 warn("speed %d not supported", bps);
1163 * Translate from a speed_t to bits/second.
1169 struct speed *speedp;
1173 for (speedp = speeds; speedp->speed_int; speedp++)
1174 if (speed == speedp->speed_val)
1175 return speedp->speed_int;
1180 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1181 * at the requested speed, etc. If `local' is true, set CLOCAL
1182 * regardless of whether the modem option was specified.
1185 set_up_tty(fd, local)
1189 struct termios tios;
1190 #if !defined (CRTSCTS)
1191 struct termiox tiox;
1194 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1195 fatal("tcgetattr: %m");
1199 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1201 if (errno != ENOTTY)
1202 error("TCGETX: %m");
1206 if (!restore_term) {
1212 ioctl(fd, TIOCGWINSZ, &wsinfo);
1215 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1218 tios.c_cflag |= CRTSCTS;
1219 else if (crtscts < 0)
1220 tios.c_cflag &= ~CRTSCTS;
1222 if (crtscts != 0 && !termiox_ok) {
1223 error("Can't set RTS/CTS flow control");
1224 } else if (crtscts > 0) {
1225 tiox.x_hflag |= RTSXOFF|CTSXON;
1226 } else if (crtscts < 0) {
1227 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1231 tios.c_cflag |= CS8 | CREAD | HUPCL;
1232 if (local || !modem)
1233 tios.c_cflag |= CLOCAL;
1234 tios.c_iflag = IGNBRK | IGNPAR;
1237 tios.c_cc[VMIN] = 1;
1238 tios.c_cc[VTIME] = 0;
1240 if (crtscts == -2) {
1241 tios.c_iflag |= IXON | IXOFF;
1242 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1243 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1246 speed = translate_speed(inspeed);
1248 cfsetospeed(&tios, speed);
1249 cfsetispeed(&tios, speed);
1251 speed = cfgetospeed(&tios);
1253 * We can't proceed if the serial port speed is 0,
1254 * since that implies that the serial port is disabled.
1256 if ((speed == B0) && !sync_serial)
1257 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1260 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1261 fatal("tcsetattr: %m");
1264 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1265 error("TCSETXF: %m");
1269 baud_rate = inspeed = baud_rate_of(speed);
1275 * restore_tty - restore the terminal to the saved settings.
1282 if (!default_device) {
1284 * Turn off echoing, because otherwise we can get into
1285 * a loop with the tty and the modem echoing to each other.
1286 * We presume we are the sole user of this tty device, so
1287 * when we close it, it will revert to its defaults anyway.
1289 inittermios.c_lflag &= ~(ECHO | ECHONL);
1291 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1292 if (!hungup && errno != ENXIO)
1293 warn("tcsetattr: %m");
1295 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1296 if (!hungup && errno != ENXIO)
1297 error("TCSETXF: %m");
1301 ioctl(fd, TIOCSWINSZ, &wsinfo);
1307 * setdtr - control the DTR line on the serial port.
1308 * This is called from die(), so it shouldn't call die().
1314 int modembits = TIOCM_DTR;
1316 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1320 * open_loopback - open the device we use for getting packets
1321 * in demand mode. Under Solaris 2, we use our existing fd
1322 * to the ppp driver.
1331 * output - Output PPP packet.
1334 output(unit, p, len)
1343 dump_packet("sent", p, len);
1344 if (snoop_send_hook) snoop_send_hook(p, len);
1347 data.buf = (caddr_t) p;
1349 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1350 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1352 error("Couldn't send packet: %m");
1356 pfd.events = POLLOUT;
1357 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1363 * wait_input - wait until there is data available,
1364 * for the length of time specified by *timo (indefinite
1369 struct timeval *timo;
1373 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1374 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1379 * add_fd - add an fd to the set that wait_input waits for.
1386 for (n = 0; n < n_pollfds; ++n)
1387 if (pollfds[n].fd == fd)
1389 if (n_pollfds < MAX_POLLFDS) {
1390 pollfds[n_pollfds].fd = fd;
1391 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1394 error("Too many inputs!");
1398 * remove_fd - remove an fd from the set that wait_input waits for.
1405 for (n = 0; n < n_pollfds; ++n) {
1406 if (pollfds[n].fd == fd) {
1407 while (++n < n_pollfds)
1408 pollfds[n-1] = pollfds[n];
1417 * wait_loop_output - wait until there is data available on the
1418 * loopback, for the length of time specified by *timo (indefinite
1422 wait_loop_output(timo)
1423 struct timeval *timo;
1429 * wait_time - wait for a given length of time or until a
1430 * signal is received.
1434 struct timeval *timo;
1438 n = select(0, NULL, NULL, NULL, timo);
1439 if (n < 0 && errno != EINTR)
1440 fatal("select: %m");
1446 * read_packet - get a PPP packet from the serial device.
1452 struct strbuf ctrl, data;
1454 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1457 data.maxlen = PPP_MRU + PPP_HDRLEN;
1458 data.buf = (caddr_t) buf;
1459 ctrl.maxlen = sizeof(ctrlbuf);
1460 ctrl.buf = (caddr_t) ctrlbuf;
1462 len = getmsg(pppfd, &ctrl, &data, &flags);
1464 if (errno == EAGAIN || errno == EINTR)
1466 fatal("Error reading packet: %m");
1473 * Got a M_PROTO or M_PCPROTO message. Interpret it
1474 * as a DLPI primitive??
1477 dbglog("got dlpi prim 0x%x, len=%d",
1478 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1484 * get_loop_output - get outgoing packets from the ppp device,
1485 * and detect when we want to bring the real link up.
1486 * Return value is 1 if we need to bring up the link, 0 otherwise.
1494 while ((len = read_packet(inpacket_buf)) > 0) {
1495 if (loop_frame(inpacket_buf, len))
1502 * ppp_send_config - configure the transmit characteristics of
1503 * the ppp interface.
1506 ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
1513 #if defined(INET6) && defined(SOL2)
1516 #endif /* defined(INET6) && defined(SOL2) */
1519 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1520 if (hungup && errno == ENXIO)
1522 error("Couldn't set MTU: %m");
1526 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
1527 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");
1538 /* set the MTU for IP as well */
1539 memset(&ifr, 0, sizeof(ifr));
1540 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1541 ifr.ifr_metric = link_mtu;
1542 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1543 error("Couldn't set IP MTU: %m");
1546 #if defined(INET6) && defined(SOL2)
1547 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1549 error("Couldn't open IPv6 socket: %m");
1551 memset(&lifr, 0, sizeof(lifr));
1552 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1553 lifr.lifr_mtu = link_mtu;
1554 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1556 error("Couldn't set IPv6 MTU: %m");
1559 #endif /* defined(INET6) && defined(SOL2) */
1563 * ppp_set_xaccm - set the extended transmit ACCM for the interface.
1566 ppp_set_xaccm(unit, accm)
1574 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1575 if (!hungup || errno != ENXIO)
1576 warn("Couldn't set extended ACCM: %m");
1581 * ppp_recv_config - configure the receive-side characteristics of
1582 * the ppp interface.
1585 ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
1593 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1594 if (hungup && errno == ENXIO)
1596 error("Couldn't set MRU: %m");
1600 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
1601 error("Couldn't set receive ACCM: %m");
1604 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1605 cf[1] = DECOMP_PROT | DECOMP_AC;
1606 if (any_compressions() &&
1607 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1608 error("Couldn't set prot/AC decompression: %m");
1614 * ccp_test - ask kernel whether a given compression method
1615 * is acceptable for use.
1618 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1619 int unit, opt_len, for_transmit;
1622 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1623 opt_ptr, opt_len, 0) >= 0)
1625 return (errno == ENOSR)? 0: -1;
1629 * ccp_flags_set - inform kernel about the current state of CCP.
1632 ccp_flags_set(unit, isopen, isup)
1633 int unit, isopen, isup;
1637 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1638 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1639 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1640 if (!hungup || errno != ENXIO)
1641 error("Couldn't set kernel CCP state: %m");
1646 * get_idle_time - return how long the link has been idle.
1649 get_idle_time(u, ip)
1651 struct ppp_idle *ip;
1653 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1657 * get_ppp_stats - return statistics for the link.
1660 get_ppp_stats(u, stats)
1662 struct pppd_stats *stats;
1667 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1668 error("Couldn't get link statistics: %m");
1671 stats->bytes_in = s.p.ppp_ibytes;
1672 stats->bytes_out = s.p.ppp_obytes;
1678 * set_filters - transfer the pass and active filters to the kernel.
1681 set_filters(pass, active)
1682 struct bpf_program *pass, *active;
1686 if (pass->bf_len > 0) {
1687 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1688 sizeof(struct bpf_program), 0) < 0) {
1689 error("Couldn't set pass-filter in kernel: %m");
1693 if (active->bf_len > 0) {
1694 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1695 sizeof(struct bpf_program), 0) < 0) {
1696 error("Couldn't set active-filter in kernel: %m");
1705 * ccp_fatal_error - returns 1 if decompression was disabled as a
1706 * result of an error detected after decompression of a packet,
1707 * 0 otherwise. This is necessary because of patent nonsense.
1710 ccp_fatal_error(unit)
1716 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1717 if (errno != ENXIO && errno != EINVAL)
1718 error("Couldn't get compression flags: %m");
1721 return cf[0] & CCP_FATALERROR;
1725 * sifvjcomp - config tcp header compression
1728 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1729 int u, vjcomp, xcidcomp, xmaxcid;
1735 maxcid[0] = xcidcomp;
1736 maxcid[1] = 15; /* XXX should be rmaxcid */
1737 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1738 error("Couldn't initialize VJ compression: %m");
1742 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1743 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1744 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1745 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1747 error("Couldn't enable VJ compression: %m");
1754 * sifup - Config the interface up and enable IP packets to pass.
1762 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1763 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1764 error("Couldn't mark interface up (get): %m");
1767 ifr.ifr_flags |= IFF_UP;
1768 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1769 error("Couldn't mark interface up (set): %m");
1777 * sifdown - Config the interface down and disable IP.
1787 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1788 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1789 error("Couldn't mark interface down (get): %m");
1792 ifr.ifr_flags &= ~IFF_UP;
1793 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1794 error("Couldn't mark interface down (set): %m");
1802 * sifnpmode - Set the mode for handling packets for a given NP.
1805 sifnpmode(u, proto, mode)
1813 npi[1] = (int) mode;
1814 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1815 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1821 #if defined(SOL2) && defined(INET6)
1823 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1832 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1837 memset(&lifr, 0, sizeof(lifr));
1838 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1839 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1844 lifr.lifr_flags |= IFF_UP;
1845 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1846 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1857 * sifdown - Config the IPv6 interface down and disable IPv6.
1866 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1870 memset(&lifr, 0, sizeof(lifr));
1871 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1872 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1877 lifr.lifr_flags &= ~IFF_UP;
1878 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1879 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1890 * sif6addr - Config the interface with an IPv6 link-local address
1898 struct sockaddr_storage laddr;
1899 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1902 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1906 memset(&lifr, 0, sizeof(lifr));
1907 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1910 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1911 * zero values, hence the interface token came to be zero too,
1912 * and without this, in.ndpd will complain
1914 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1915 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1921 * Set the interface address and destination address
1923 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1924 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1929 memset(&lifr, 0, sizeof(lifr));
1930 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1931 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1932 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1941 * cif6addr - Remove the IPv6 address from interface
1951 #endif /* defined(SOL2) && defined(INET6) */
1954 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1957 * sifaddr - Config the interface IP addresses and netmask.
1967 memset(&ifr, 0, sizeof(ifr));
1968 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1969 ifr.ifr_addr.sa_family = AF_INET;
1970 INET_ADDR(ifr.ifr_addr) = m;
1971 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1972 error("Couldn't set IP netmask: %m");
1975 ifr.ifr_addr.sa_family = AF_INET;
1976 INET_ADDR(ifr.ifr_addr) = o;
1977 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1978 error("Couldn't set local IP address: %m");
1983 * On some systems, we have to explicitly set the point-to-point
1984 * flag bit before we can set a destination address.
1986 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1987 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1988 ifr.ifr_flags |= IFF_POINTOPOINT;
1989 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1990 error("Couldn't mark interface pt-to-pt: %m");
1994 ifr.ifr_dstaddr.sa_family = AF_INET;
1995 INET_ADDR(ifr.ifr_dstaddr) = h;
1996 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
1997 error("Couldn't set remote IP address: %m");
2000 #if 0 /* now done in ppp_send_config */
2001 ifr.ifr_metric = link_mtu;
2002 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
2003 error("Couldn't set IP MTU: %m");
2012 * cifaddr - Clear the interface IP addresses, and delete routes
2013 * through the interface if possible.
2020 #if defined(__USLC__) /* was: #if 0 */
2021 cifroute(unit, ouraddr, hisaddr);
2023 notice("Removing ppp interface unit");
2024 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2025 error("Can't remove ppp interface unit: %m");
2036 * sifdefaultroute - assign a default route through the address given.
2039 sifdefaultroute(u, l, g)
2045 #if defined(__USLC__)
2046 g = l; /* use the local address as gateway */
2048 memset(&rt, 0, sizeof(rt));
2049 rt.rt_dst.sa_family = AF_INET;
2050 INET_ADDR(rt.rt_dst) = 0;
2051 rt.rt_gateway.sa_family = AF_INET;
2052 INET_ADDR(rt.rt_gateway) = g;
2053 rt.rt_flags = RTF_GATEWAY;
2055 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2056 error("Can't add default route: %m");
2060 default_route_gateway = g;
2065 * cifdefaultroute - delete a default route through the address given.
2068 cifdefaultroute(u, l, g)
2074 #if defined(__USLC__)
2075 g = l; /* use the local address as gateway */
2077 memset(&rt, 0, sizeof(rt));
2078 rt.rt_dst.sa_family = AF_INET;
2079 INET_ADDR(rt.rt_dst) = 0;
2080 rt.rt_gateway.sa_family = AF_INET;
2081 INET_ADDR(rt.rt_gateway) = g;
2082 rt.rt_flags = RTF_GATEWAY;
2084 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2085 error("Can't delete default route: %m");
2089 default_route_gateway = 0;
2094 * sifproxyarp - Make a proxy ARP entry for the peer.
2097 sifproxyarp(unit, hisaddr)
2101 struct arpreq arpreq;
2103 memset(&arpreq, 0, sizeof(arpreq));
2104 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2107 arpreq.arp_pa.sa_family = AF_INET;
2108 INET_ADDR(arpreq.arp_pa) = hisaddr;
2109 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2110 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2111 error("Couldn't set proxy ARP entry: %m");
2115 proxy_arp_addr = hisaddr;
2120 * cifproxyarp - Delete the proxy ARP entry for the peer.
2123 cifproxyarp(unit, hisaddr)
2127 struct arpreq arpreq;
2129 memset(&arpreq, 0, sizeof(arpreq));
2130 arpreq.arp_pa.sa_family = AF_INET;
2131 INET_ADDR(arpreq.arp_pa) = hisaddr;
2132 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2133 error("Couldn't delete proxy ARP entry: %m");
2142 * get_ether_addr - get the hardware address of an interface on the
2143 * the same subnet as ipaddr.
2148 get_ether_addr(ipaddr, hwaddr)
2150 struct sockaddr *hwaddr;
2152 struct ifreq *ifr, *ifend, ifreq;
2155 u_int32_t ina, mask;
2158 * Scan through the system's network interfaces.
2161 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2164 ifc.ifc_len = nif * sizeof(struct ifreq);
2165 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2166 if (ifc.ifc_buf == 0)
2168 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2169 warn("Couldn't get system interface list: %m");
2173 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2174 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2175 if (ifr->ifr_addr.sa_family != AF_INET)
2178 * Check that the interface is up, and not point-to-point or loopback.
2180 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2181 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2183 if ((ifreq.ifr_flags &
2184 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2185 != (IFF_UP|IFF_BROADCAST))
2188 * Get its netmask and check that it's on the right subnet.
2190 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2192 ina = INET_ADDR(ifr->ifr_addr);
2193 mask = INET_ADDR(ifreq.ifr_addr);
2194 if ((ipaddr & mask) == (ina & mask))
2199 warn("No suitable interface found for proxy ARP");
2204 info("found interface %s for proxy ARP", ifr->ifr_name);
2205 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2206 error("Couldn't get hardware address for %s", ifr->ifr_name);
2216 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2219 get_hw_addr_dlpi(name, hwaddr)
2221 struct sockaddr *hwaddr;
2224 int unit, iffd, adrlen;
2225 unsigned char *adrp;
2228 union DL_primitives prim;
2233 * We have to open the device and ask it for its hardware address.
2234 * First split apart the device name and unit.
2236 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2237 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2244 * Open the device and do a DLPI attach and phys_addr_req.
2246 iffd = open(ifdev, O_RDWR);
2248 error("Can't open %s: %m", ifdev);
2251 if (dlpi_attach(iffd, unit) < 0
2252 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2253 || dlpi_info_req(iffd) < 0
2254 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2259 adrlen = reply.prim.info_ack.dl_addr_length;
2260 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2262 #if DL_CURRENT_VERSION >= 2
2263 if (reply.prim.info_ack.dl_sap_length < 0)
2264 adrlen += reply.prim.info_ack.dl_sap_length;
2266 adrp += reply.prim.info_ack.dl_sap_length;
2269 hwaddr->sa_family = AF_UNSPEC;
2270 memcpy(hwaddr->sa_data, adrp, adrlen);
2275 * get_hw_addr - obtain the hardware address for a named interface.
2278 get_hw_addr(name, ina, hwaddr)
2281 struct sockaddr *hwaddr;
2283 /* New way - get the address by doing an arp request. */
2287 s = socket(AF_INET, SOCK_DGRAM, 0);
2290 memset(&req, 0, sizeof(req));
2291 req.arp_pa.sa_family = AF_INET;
2292 INET_ADDR(req.arp_pa) = ina;
2293 if (ioctl(s, SIOCGARP, &req) < 0) {
2294 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2297 *hwaddr = req.arp_ha;
2298 hwaddr->sa_family = AF_UNSPEC;
2304 dlpi_attach(fd, ppa)
2307 dl_attach_req_t req;
2310 req.dl_primitive = DL_ATTACH_REQ;
2312 buf.len = sizeof(req);
2313 buf.buf = (void *) &req;
2314 return putmsg(fd, &buf, NULL, RS_HIPRI);
2324 req.dl_primitive = DL_INFO_REQ;
2325 buf.len = sizeof(req);
2326 buf.buf = (void *) &req;
2327 return putmsg(fd, &buf, NULL, RS_HIPRI);
2331 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2332 union DL_primitives *reply;
2333 int fd, expected_prim, maxlen;
2340 * Use poll to wait for a message with a timeout.
2343 pfd.events = POLLIN | POLLPRI;
2345 n = poll(&pfd, 1, 1000);
2346 } while (n == -1 && errno == EINTR);
2353 buf.maxlen = maxlen;
2354 buf.buf = (void *) reply;
2356 if (getmsg(fd, &buf, NULL, &flags) < 0)
2359 if (buf.len < sizeof(ulong)) {
2361 dbglog("dlpi response short (len=%d)\n", buf.len);
2365 if (reply->dl_primitive == expected_prim)
2369 if (reply->dl_primitive == DL_ERROR_ACK) {
2370 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2371 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2372 reply->error_ack.dl_error_primitive);
2374 dbglog("dlpi unexpected response prim %x\n",
2375 reply->dl_primitive);
2383 * Return user specified netmask, modified by any mask we might determine
2384 * for address `addr' (in network byte order).
2385 * Here we scan through the system's list of interfaces, looking for
2386 * any non-point-to-point interfaces which might appear to be on the same
2387 * network as `addr'. If we find any, we OR in their netmask to the
2388 * user-specified netmask.
2394 u_int32_t mask, nmask, ina;
2395 struct ifreq *ifr, *ifend, ifreq;
2400 if (IN_CLASSA(addr)) /* determine network mask for address class */
2401 nmask = IN_CLASSA_NET;
2402 else if (IN_CLASSB(addr))
2403 nmask = IN_CLASSB_NET;
2405 nmask = IN_CLASSC_NET;
2406 /* class D nets are disallowed by bad_ip_adrs */
2407 mask = netmask | htonl(nmask);
2410 * Scan through the system's network interfaces.
2413 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2416 ifc.ifc_len = nif * sizeof(struct ifreq);
2417 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2418 if (ifc.ifc_buf == 0)
2420 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2421 warn("Couldn't get system interface list: %m");
2425 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2426 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2428 * Check the interface's internet address.
2430 if (ifr->ifr_addr.sa_family != AF_INET)
2432 ina = INET_ADDR(ifr->ifr_addr);
2433 if ((ntohl(ina) & nmask) != (addr & nmask))
2436 * Check that the interface is up, and not point-to-point or loopback.
2438 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2439 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2441 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2445 * Get its netmask and OR it into our mask.
2447 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2449 mask |= INET_ADDR(ifreq.ifr_addr);
2457 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2460 logwtmp(line, name, host)
2461 const char *line, *name, *host;
2463 static struct utmpx utmpx;
2467 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2468 strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id));
2469 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2470 utmpx.ut_pid = getpid();
2471 utmpx.ut_type = USER_PROCESS;
2473 utmpx.ut_type = DEAD_PROCESS;
2475 gettimeofday(&utmpx.ut_tv, NULL);
2476 updwtmpx("/var/adm/wtmpx", &utmpx);
2480 * get_host_seed - return the serial number of this machine.
2487 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2488 error("sysinfo: %m");
2491 return (int) strtoul(buf, NULL, 16);
2495 strioctl(fd, cmd, ptr, ilen, olen)
2496 int fd, cmd, ilen, olen;
2499 struct strioctl str;
2505 if (ioctl(fd, I_STR, &str) == -1)
2507 if (str.ic_len != olen)
2508 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2509 olen, str.ic_len, cmd);
2515 * lock - create a lock file for the named lock device
2518 #define LOCK_PREFIX "/var/spool/locks/LK."
2519 static char lock_file[40]; /* name of lock file created */
2529 if (stat(dev, &sbuf) < 0) {
2530 error("Can't get device number for %s: %m", dev);
2533 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2534 error("Can't lock %s: not a character device", dev);
2537 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2538 LOCK_PREFIX, major(sbuf.st_dev),
2539 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2541 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2543 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2544 /* Read the lock file to find out who has the device locked */
2545 n = read(fd, ascii_pid, 11);
2547 error("Can't read pid from lock file %s", lock_file);
2551 pid = atoi(ascii_pid);
2552 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2553 /* pid no longer exists - remove the lock file */
2554 if (unlink(lock_file) == 0) {
2556 notice("Removed stale lock on %s (pid %d)",
2560 warn("Couldn't remove stale lock on %s",
2563 notice("Device %s is locked by pid %d",
2568 error("Can't create lock file %s: %m", lock_file);
2573 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2574 write(fd, ascii_pid, 11);
2581 * unlock - remove our lockfile
2594 * cifroute - delete a route through the addresses given.
2597 cifroute(u, our, his)
2603 memset(&rt, 0, sizeof(rt));
2604 rt.rt_dst.sa_family = AF_INET;
2605 INET_ADDR(rt.rt_dst) = his;
2606 rt.rt_gateway.sa_family = AF_INET;
2607 INET_ADDR(rt.rt_gateway) = our;
2608 rt.rt_flags = RTF_HOST;
2610 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2611 error("Can't delete route: %m");
2619 * have_route_to - determine if the system has a route to the specified
2620 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2621 * `addr' is in network byte order.
2622 * For demand mode to work properly, we have to ignore routes
2623 * through our own interface.
2625 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2626 #define T_CURRENT MI_T_CURRENT
2634 int fd, r, flags, i;
2636 struct T_optmgmt_req req;
2640 struct T_optmgmt_ack ack;
2641 unsigned char space[64];
2644 struct strbuf cbuf, dbuf;
2646 mib2_ipRouteEntry_t routes[8];
2647 mib2_ipRouteEntry_t *rp;
2649 fd = open(mux_dev_name, O_RDWR);
2651 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2655 req.req.PRIM_type = T_OPTMGMT_REQ;
2656 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2657 req.req.OPT_length = sizeof(req.hdr);
2658 req.req.MGMT_flags = T_CURRENT;
2660 req.hdr.level = MIB2_IP;
2664 cbuf.buf = (char *) &req;
2665 cbuf.len = sizeof(req);
2667 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2668 warn("have_route_to: putmsg: %m");
2674 cbuf.buf = (char *) &ack;
2675 cbuf.maxlen = sizeof(ack);
2676 dbuf.buf = (char *) routes;
2677 dbuf.maxlen = sizeof(routes);
2679 r = getmsg(fd, &cbuf, &dbuf, &flags);
2681 warn("have_route_to: getmsg: %m");
2686 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2687 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2688 || ack.ack.MGMT_flags != T_SUCCESS
2689 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2690 dbglog("have_route_to: bad message len=%d prim=%d",
2691 cbuf.len, ack.ack.PRIM_type);
2696 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2697 if (rh->level == 0 && rh->name == 0)
2699 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2700 while (r == MOREDATA)
2701 r = getmsg(fd, NULL, &dbuf, &flags);
2706 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2707 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2708 if (rp->ipRouteMask != ~0) {
2709 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2710 rp->ipRouteDest, rp->ipRouteNextHop,
2712 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2713 && rp->ipRouteNextHop != remote_addr)
2719 r = getmsg(fd, NULL, &dbuf, &flags);
2730 * get_pty - get a pty master/slave pair and chown the slave side to
2731 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2734 get_pty(master_fdp, slave_fdp, slave_name, uid)
2742 struct termios tios;
2744 mfd = open("/dev/ptmx", O_RDWR);
2746 error("Couldn't open pty master: %m");
2750 pty_name = ptsname(mfd);
2751 if (pty_name == NULL) {
2752 error("Couldn't get name of pty slave");
2756 if (chown(pty_name, uid, -1) < 0)
2757 warn("Couldn't change owner of pty slave: %m");
2758 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2759 warn("Couldn't change permissions on pty slave: %m");
2760 if (unlockpt(mfd) < 0)
2761 warn("Couldn't unlock pty slave: %m");
2763 sfd = open(pty_name, O_RDWR);
2765 error("Couldn't open pty slave %s: %m", pty_name);
2769 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2770 warn("Couldn't push ptem module on pty slave: %m");
2772 dbglog("Using %s", pty_name);
2773 strlcpy(slave_name, pty_name, MAXPATHLEN);