diff options
Diffstat (limited to 'mdk-stage1/ppp/pppd/sys-solaris.c')
| -rw-r--r-- | mdk-stage1/ppp/pppd/sys-solaris.c | 2737 |
1 files changed, 0 insertions, 2737 deletions
diff --git a/mdk-stage1/ppp/pppd/sys-solaris.c b/mdk-stage1/ppp/pppd/sys-solaris.c deleted file mode 100644 index da5f9c45a..000000000 --- a/mdk-stage1/ppp/pppd/sys-solaris.c +++ /dev/null @@ -1,2737 +0,0 @@ -/* - * System-dependent procedures for pppd under Solaris 2. - * - * Parts re-written by Adi Masputra <adi.masputra@sun.com>, based on - * the original sys-svr4.c - * - * Copyright (c) 2000 by Sun Microsystems, Inc. - * All rights reserved. - * - * Permission to use, copy, modify, and distribute this software and its - * documentation is hereby granted, provided that the above copyright - * notice appears in all copies. - * - * SUN MAKES NO REPRESENTATION OR WARRANTIES ABOUT THE SUITABILITY OF - * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED - * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A - * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR - * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR - * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES - * - * Copyright (c) 1994 The Australian National University. - * All rights reserved. - * - * Permission to use, copy, modify, and distribute this software and its - * documentation is hereby granted, provided that the above copyright - * notice appears in all copies. This software is provided without any - * warranty, express or implied. The Australian National University - * makes no representations about the suitability of this software for - * any purpose. - * - * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY - * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF - * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS - * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO - * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, - * OR MODIFICATIONS. - */ - -#define RCSID "$Id$" - -#include <limits.h> -#include <stdio.h> -#include <stddef.h> -#include <stdlib.h> -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <unistd.h> -#include <termios.h> -#ifndef CRTSCTS -#include <sys/termiox.h> -#endif -#include <signal.h> -#include <utmpx.h> -#include <sys/types.h> -#include <sys/ioccom.h> -#include <sys/stream.h> -#include <sys/stropts.h> -#include <sys/socket.h> -#include <sys/sockio.h> -#include <sys/sysmacros.h> -#include <sys/systeminfo.h> -#include <sys/dlpi.h> -#include <sys/stat.h> -#include <sys/mkdev.h> -#include <net/if.h> -#include <net/if_arp.h> -#include <net/route.h> -#include <net/ppp_defs.h> -#include <net/pppio.h> -#include <netinet/in.h> -#ifdef SOL2 -#include <sys/tihdr.h> -#include <sys/tiuser.h> -#include <inet/common.h> -#include <inet/mib2.h> -#include <sys/ethernet.h> -#endif - -#include "pppd.h" -#include "fsm.h" -#include "lcp.h" -#include "ipcp.h" -#include "ccp.h" - -#if !defined(PPP_DRV_NAME) -#define PPP_DRV_NAME "ppp" -#endif /* !defined(PPP_DRV_NAME) */ - -#if !defined(PPP_DEV_NAME) -#define PPP_DEV_NAME "/dev/" PPP_DRV_NAME -#endif /* !defined(PPP_DEV_NAME) */ - -#if !defined(AHDLC_MOD_NAME) -#define AHDLC_MOD_NAME "ppp_ahdl" -#endif /* !defined(AHDLC_MOD_NAME) */ - -#if !defined(COMP_MOD_NAME) -#define COMP_MOD_NAME "ppp_comp" -#endif /* !defined(COMP_MOD_NAME) */ - -#if !defined(IP_DEV_NAME) -#define IP_DEV_NAME "/dev/ip" -#endif /* !defined(IP_DEV_NAME) */ - -#if !defined(IP_MOD_NAME) -#define IP_MOD_NAME "ip" -#endif /* !defined(IP_MOD_NAME) */ - -#if !defined(UDP_DEV_NAME) && defined(SOL2) -#define UDP_DEV_NAME "/dev/udp" -#endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */ - -#if !defined(UDP6_DEV_NAME) && defined(SOL2) -#define UDP6_DEV_NAME "/dev/udp6" -#endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */ - -static const char rcsid[] = RCSID; - -#if defined(SOL2) -/* - * "/dev/udp" is used as a multiplexor to PLINK the interface stream - * under. It is used in place of "/dev/ip" since STREAMS will not let - * a driver be PLINK'ed under itself, and "/dev/ip" is typically the - * driver at the bottom of the tunneling interfaces stream. - */ -static char *mux_dev_name = UDP_DEV_NAME; -#else -static char *mux_dev_name = IP_DEV_NAME; -#endif -static int pppfd; -static int fdmuxid = -1; -static int ipfd; -static int ipmuxid = -1; - -#if defined(INET6) && defined(SOL2) -static int ip6fd; /* IP file descriptor */ -static int ip6muxid = -1; /* Multiplexer file descriptor */ -static int if6_is_up = 0; /* IPv6 interface has been marked up */ - -#define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \ - s->sin6_addr.s6_addr32[0] = htonl(as); \ - eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \ - s->sin6_family = AF_INET6; \ - l.lifr_addr.ss_family = AF_INET6; \ - l.lifr_addrlen = 10; \ - l.lifr_addr = laddr; \ - } while (0) - -#define IN6_LLADDR_FROM_EUI64(l, s, eui64) \ - _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000) - -#define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \ - _IN6_LLX_FROM_EUI64(l, s, eui64, 0) - -#endif /* defined(INET6) && defined(SOL2) */ - -#if defined(INET6) && defined(SOL2) -static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */ -#else -static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */ -#define MAXIFS 256 /* Max # of interfaces */ -#endif /* defined(INET6) && defined(SOL2) */ - -static int restore_term; -static struct termios inittermios; -#ifndef CRTSCTS -static struct termiox inittermiox; -static int termiox_ok; -#endif -static struct winsize wsinfo; /* Initial window size info */ -static pid_t tty_sid; /* original session ID for terminal */ - -extern u_char inpacket_buf[]; /* borrowed from main.c */ - -#define MAX_POLLFDS 32 -static struct pollfd pollfds[MAX_POLLFDS]; -static int n_pollfds; - -static int link_mtu, link_mru; - -#define NMODULES 32 -static int tty_nmodules; -static char tty_modules[NMODULES][FMNAMESZ+1]; -static int tty_npushed; - -static int if_is_up; /* Interface has been marked up */ -static u_int32_t remote_addr; /* IP address of peer */ -static u_int32_t default_route_gateway; /* Gateway for default route added */ -static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */ - -/* Prototypes for procedures local to this file. */ -static int translate_speed __P((int)); -static int baud_rate_of __P((int)); -static int get_ether_addr __P((u_int32_t, struct sockaddr *)); -static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *)); -static int get_hw_addr_dlpi __P((char *, struct sockaddr *)); -static int dlpi_attach __P((int, int)); -static int dlpi_info_req __P((int)); -static int dlpi_get_reply __P((int, union DL_primitives *, int, int)); -static int strioctl __P((int, int, void *, int, int)); - -#ifdef SOL2 -/* - * sifppa - Sets interface ppa - * - * without setting the ppa, ip module will return EINVAL upon setting the - * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects - * two DLPI_INFO_REQ to be sent down to the driver (below ip) before - * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to - * be sent down, and the second DLPI_INFO_REQ is sent upon receiving - * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa - * is required because the ppp DLPI provider advertises itself as - * a DLPI style 2 type, which requires a point of attachment to be - * specified. The only way the user can specify a point of attachment - * is via SIOCSLIFNAME or IF_UNITSEL. - * - * Such changes in the behavior of ip module was made to meet new or - * evolving standards requirements. - * - */ -static int -sifppa(fd, ppa) - int fd; - int ppa; -{ - return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa); -} -#endif /* SOL2 */ - -#if defined(SOL2) && defined(INET6) -/* - * get_first_ethernet - returns the first Ethernet interface name found in - * the system, or NULL if none is found - * - * NOTE: This is the lifreq version (Solaris 8 and above) - */ -char * -get_first_ethernet() -{ - struct lifnum lifn; - struct lifconf lifc; - struct lifreq *plifreq; - struct lifreq lifr; - int fd, num_ifs, i, found; - uint_t fl, req_size; - char *req; - - fd = socket(AF_INET, SOCK_DGRAM, 0); - if (fd < 0) { - return 0; - } - - /* - * Find out how many interfaces are running - */ - lifn.lifn_family = AF_UNSPEC; - lifn.lifn_flags = LIFC_NOXMIT; - if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) { - close(fd); - error("could not determine number of interfaces: %m"); - return 0; - } - - num_ifs = lifn.lifn_count; - req_size = num_ifs * sizeof(struct lifreq); - req = malloc(req_size); - if (req == NULL) { - close(fd); - error("out of memory"); - return 0; - } - - /* - * Get interface configuration info for all interfaces - */ - lifc.lifc_family = AF_UNSPEC; - lifc.lifc_flags = LIFC_NOXMIT; - lifc.lifc_len = req_size; - lifc.lifc_buf = req; - if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) { - close(fd); - free(req); - error("SIOCGLIFCONF: %m"); - return 0; - } - - /* - * And traverse each interface to look specifically for the first - * occurence of an Ethernet interface which has been marked up - */ - plifreq = lifc.lifc_req; - found = 0; - for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) { - - if (strchr(plifreq->lifr_name, ':') != NULL) - continue; - - memset(&lifr, 0, sizeof(lifr)); - strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name)); - if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) { - close(fd); - free(req); - error("SIOCGLIFFLAGS: %m"); - return 0; - } - fl = lifr.lifr_flags; - - if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP)) - != (IFF_UP | IFF_BROADCAST)) - continue; - - found = 1; - break; - } - free(req); - close(fd); - - if (found) { - strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name)); - return (char *)first_ether_name; - } else - return NULL; -} -#else -/* - * get_first_ethernet - returns the first Ethernet interface name found in - * the system, or NULL if none is found - * - * NOTE: This is the ifreq version (before Solaris 8). - */ -char * -get_first_ethernet() -{ - struct ifconf ifc; - struct ifreq *pifreq; - struct ifreq ifr; - int fd, num_ifs, i, found; - uint_t fl, req_size; - char *req; - - fd = socket(AF_INET, SOCK_DGRAM, 0); - if (fd < 0) { - return 0; - } - - /* - * Find out how many interfaces are running - */ - if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) { - num_ifs = MAXIFS; - } - - req_size = num_ifs * sizeof(struct ifreq); - req = malloc(req_size); - if (req == NULL) { - close(fd); - error("out of memory"); - return 0; - } - - /* - * Get interface configuration info for all interfaces - */ - ifc.ifc_len = req_size; - ifc.ifc_buf = req; - if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) { - close(fd); - free(req); - error("SIOCGIFCONF: %m"); - return 0; - } - - /* - * And traverse each interface to look specifically for the first - * occurence of an Ethernet interface which has been marked up - */ - pifreq = ifc.ifc_req; - found = 0; - for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) { - - if (strchr(pifreq->ifr_name, ':') != NULL) - continue; - - memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name)); - if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) { - close(fd); - free(req); - error("SIOCGIFFLAGS: %m"); - return 0; - } - fl = ifr.ifr_flags; - - if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP)) - != (IFF_UP | IFF_BROADCAST)) - continue; - - found = 1; - break; - } - free(req); - close(fd); - - if (found) { - strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name)); - return (char *)first_ether_name; - } else - return NULL; -} -#endif /* defined(SOL2) && defined(INET6) */ - -#if defined(SOL2) -/* - * get_if_hwaddr - get the hardware address for the specified - * network interface device. - */ -int -get_if_hwaddr(u_char *addr, char *if_name) -{ - struct sockaddr s_eth_addr; - struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data; - - if (if_name == NULL) - return -1; - - /* - * Send DL_INFO_REQ to the driver to solicit its MAC address - */ - if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) { - error("could not obtain hardware address for %s", if_name); - return -1; - } - - memcpy(addr, eth_addr->ether_addr_octet, 6); - return 1; -} -#endif /* SOL2 */ - -#if defined(SOL2) && defined(INET6) -/* - * slifname - Sets interface ppa and flags - * - * in addition to the comments stated in sifppa(), IFF_IPV6 bit must - * be set in order to declare this as an IPv6 interface - */ -static int -slifname(fd, ppa) - int fd; - int ppa; -{ - struct lifreq lifr; - int ret; - - memset(&lifr, 0, sizeof(lifr)); - ret = ioctl(fd, SIOCGLIFFLAGS, &lifr); - if (ret < 0) - goto slifname_done; - - lifr.lifr_flags |= IFF_IPV6; - lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4); - lifr.lifr_ppa = ppa; - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - - ret = ioctl(fd, SIOCSLIFNAME, &lifr); - -slifname_done: - return ret; - - -} - - -/* - * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI - * - * walks the list of valid ethernet interfaces, and convert the first - * found 48-bit MAC address into EUI 64. caller also assumes that - * the system has a properly configured Ethernet interface for this - * function to return non-zero. - */ -int -ether_to_eui64(eui64_t *p_eui64) -{ - struct sockaddr s_eth_addr; - struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data; - char *if_name; - - if ((if_name = get_first_ethernet()) == NULL) { - error("no persistent id can be found"); - return 0; - } - - /* - * Send DL_INFO_REQ to the driver to solicit its MAC address - */ - if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) { - error("could not obtain hardware address for %s", if_name); - return 0; - } - - /* - * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1] - */ - p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02; - p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF); - p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF); - p_eui64->e8[3] = 0xFF; - p_eui64->e8[4] = 0xFE; - p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF); - p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF); - p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF); - - return 1; -} -#endif /* defined(SOL2) && defined(INET6) */ - -/* - * sys_init - System-dependent initialization. - */ -void -sys_init() -{ - int ifd, x; - struct ifreq ifr; -#if defined(INET6) && defined(SOL2) - int i6fd; - struct lifreq lifr; -#endif /* defined(INET6) && defined(SOL2) */ -#if !defined(SOL2) - struct { - union DL_primitives prim; - char space[64]; - } reply; -#endif /* !defined(SOL2) */ - - ipfd = open(mux_dev_name, O_RDWR, 0); - if (ipfd < 0) - fatal("Couldn't open IP device: %m"); - -#if defined(INET6) && defined(SOL2) - ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0); - if (ip6fd < 0) - fatal("Couldn't open IP device (2): %m"); -#endif /* defined(INET6) && defined(SOL2) */ - - if (default_device && !notty) - tty_sid = getsid((pid_t)0); - - pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0); - if (pppfd < 0) - fatal("Can't open %s: %m", PPP_DEV_NAME); - if (kdebugflag & 1) { - x = PPPDBG_LOG + PPPDBG_DRIVER; - strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0); - } - - /* Assign a new PPA and get its unit number. */ - if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0) - fatal("Can't create new PPP interface: %m"); - -#if defined(SOL2) - /* - * Since sys_init() is called prior to ifname being set in main(), - * we need to get the ifname now, otherwise slifname(), and others, - * will fail, or maybe, I should move them to a later point ? - * <adi.masputra@sun.com> - */ - sprintf(ifname, PPP_DRV_NAME "%d", ifunit); -#endif /* defined(SOL2) */ - /* - * Open the ppp device again and link it under the ip multiplexor. - * IP will assign a unit number which hopefully is the same as ifunit. - * I don't know any way to be certain they will be the same. :-( - */ - ifd = open(PPP_DEV_NAME, O_RDWR, 0); - if (ifd < 0) - fatal("Can't open %s (2): %m", PPP_DEV_NAME); - if (kdebugflag & 1) { - x = PPPDBG_LOG + PPPDBG_DRIVER; - strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0); - } - -#if defined(INET6) && defined(SOL2) - i6fd = open(PPP_DEV_NAME, O_RDWR, 0); - if (i6fd < 0) { - close(ifd); - fatal("Can't open %s (3): %m", PPP_DEV_NAME); - } - if (kdebugflag & 1) { - x = PPPDBG_LOG + PPPDBG_DRIVER; - strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0); - } -#endif /* defined(INET6) && defined(SOL2) */ - -#if defined(SOL2) - if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) { - close(ifd); -#if defined(INET6) - close(i6fd); -#endif /* defined(INET6) */ - fatal("Can't push IP module: %m"); - } - - /* - * Assign ppa according to the unit number returned by ppp device - * after plumbing is completed above. - */ - if (sifppa(ifd, ifunit) < 0) { - close (ifd); -#if defined(INET6) - close(i6fd); -#endif /* defined(INET6) */ - fatal("Can't set ppa for unit %d: %m", ifunit); - } - -#if defined(INET6) - /* - * An IPv6 interface is created anyway, even when the user does not - * explicitly enable it. Note that the interface will be marked - * IPv6 during slifname(). - */ - if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) { - close(ifd); - close(i6fd); - fatal("Can't push IP module (2): %m"); - } - - /* - * Assign ppa according to the unit number returned by ppp device - * after plumbing is completed above. In addition, mark the interface - * as an IPv6 interface. - */ - if (slifname(i6fd, ifunit) < 0) { - close(ifd); - close(i6fd); - fatal("Can't set ifname for unit %d: %m", ifunit); - } -#endif /* defined(INET6) */ - - ipmuxid = ioctl(ipfd, I_PLINK, ifd); - close(ifd); - if (ipmuxid < 0) { -#if defined(INET6) - close(i6fd); -#endif /* defined(INET6) */ - fatal("Can't I_PLINK PPP device to IP: %m"); - } - - memset(&ifr, 0, sizeof(ifr)); - sprintf(ifr.ifr_name, "%s", ifname); - ifr.ifr_ip_muxid = ipmuxid; - - /* - * In Sol 8 and later, STREAMS dynamic module plumbing feature exists. - * This is so that an arbitrary module can be inserted, or deleted, - * between ip module and the device driver without tearing down the - * existing stream. Such feature requires the mux ids, which is set - * by SIOCSIFMUXID (or SIOCLSIFMUXID). - */ - if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) { - ioctl(ipfd, I_PUNLINK, ipmuxid); -#if defined(INET6) - close(i6fd); -#endif /* defined(INET6) */ - fatal("SIOCSIFMUXID: %m"); - } - -#else /* else if !defined(SOL2) */ - - if (dlpi_attach(ifd, ifunit) < 0 || - dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) { - close(ifd); - fatal("Can't attach to ppp%d: %m", ifunit); - } - - ipmuxid = ioctl(ipfd, I_LINK, ifd); - close(ifd); - if (ipmuxid < 0) - fatal("Can't link PPP device to IP: %m"); -#endif /* defined(SOL2) */ - -#if defined(INET6) && defined(SOL2) - ip6muxid = ioctl(ip6fd, I_PLINK, i6fd); - close(i6fd); - if (ip6muxid < 0) { - ioctl(ipfd, I_PUNLINK, ipmuxid); - fatal("Can't I_PLINK PPP device to IP (2): %m"); - } - - memset(&lifr, 0, sizeof(lifr)); - sprintf(lifr.lifr_name, "%s", ifname); - lifr.lifr_ip_muxid = ip6muxid; - - /* - * Let IP know of the mux id [see comment for SIOCSIFMUXID above] - */ - if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) { - ioctl(ipfd, I_PUNLINK, ipmuxid); - ioctl(ip6fd, I_PUNLINK, ip6muxid); - fatal("Can't link PPP device to IP (2): %m"); - } -#endif /* defined(INET6) && defined(SOL2) */ - -#if !defined(SOL2) - /* Set the interface name for the link. */ - slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit); - ifr.ifr_metric = ipmuxid; - if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0) - fatal("Can't set interface name %s: %m", ifr.ifr_name); -#endif /* !defined(SOL2) */ - - n_pollfds = 0; -} - -/* - * sys_cleanup - restore any system state we modified before exiting: - * mark the interface down, delete default route and/or proxy arp entry. - * This should call die() because it's called from die(). - */ -void -sys_cleanup() -{ -#if defined(SOL2) - struct ifreq ifr; -#if defined(INET6) - struct lifreq lifr; -#endif /* defined(INET6) */ -#endif /* defined(SOL2) */ - -#if defined(SOL2) && defined(INET6) - if (if6_is_up) - sif6down(0); -#endif /* defined(SOL2) && defined(INET6) */ - if (if_is_up) - sifdown(0); - if (default_route_gateway) - cifdefaultroute(0, default_route_gateway, default_route_gateway); - if (proxy_arp_addr) - cifproxyarp(0, proxy_arp_addr); -#if defined(SOL2) - /* - * Make sure we ask ip what the muxid, because 'ifconfig modlist' will - * unlink and re-link the modules, causing the muxid to change. - */ - memset(&ifr, 0, sizeof(ifr)); - sprintf(ifr.ifr_name, "%s", ifname); - if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) { - error("SIOCGIFFLAGS: %m"); - return; - } - - if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) { - error("SIOCGIFMUXID: %m"); - return; - } - - ipmuxid = ifr.ifr_ip_muxid; - - if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) { - error("Can't I_PUNLINK PPP from IP: %m"); - return; - } -#if defined(INET6) - /* - * Make sure we ask ip what the muxid, because 'ifconfig modlist' will - * unlink and re-link the modules, causing the muxid to change. - */ - memset(&lifr, 0, sizeof(lifr)); - sprintf(lifr.lifr_name, "%s", ifname); - if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) { - error("SIOCGLIFFLAGS: %m"); - return; - } - - if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) { - error("SIOCGLIFMUXID: %m"); - return; - } - - ip6muxid = lifr.lifr_ip_muxid; - - if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) { - error("Can't I_PUNLINK PPP from IP (2): %m"); - } -#endif /* defined(INET6) */ -#endif /* defined(SOL2) */ -} - -/* - * sys_close - Clean up in a child process before execing. - */ -void -sys_close() -{ - close(ipfd); -#if defined(INET6) && defined(SOL2) - close(ip6fd); -#endif /* defined(INET6) && defined(SOL2) */ - if (pppfd >= 0) - close(pppfd); -} - -/* - * sys_check_options - check the options that the user specified - */ -int -sys_check_options() -{ - return 1; -} - -#if 0 -/* - * daemon - Detach us from controlling terminal session. - */ -int -daemon(nochdir, noclose) - int nochdir, noclose; -{ - int pid; - - if ((pid = fork()) < 0) - return -1; - if (pid != 0) - exit(0); /* parent dies */ - setsid(); - if (!nochdir) - chdir("/"); - if (!noclose) { - fclose(stdin); /* don't need stdin, stdout, stderr */ - fclose(stdout); - fclose(stderr); - } - return 0; -} -#endif - -/* - * ppp_available - check whether the system has any ppp interfaces - */ -int -ppp_available() -{ - struct stat buf; - - return stat(PPP_DEV_NAME, &buf) >= 0; -} - -/* - * any_compressions - see if compression is enabled or not - * - * In the STREAMS implementation of kernel-portion pppd, - * the comp STREAMS module performs the ACFC, PFC, as well - * CCP and VJ compressions. However, if the user has explicitly - * declare to not enable them from the command line, there is - * no point of having the comp module be pushed on the stream. - */ -static int -any_compressions() -{ - if ((!lcp_wantoptions[0].neg_accompression) && - (!lcp_wantoptions[0].neg_pcompression) && - (!ccp_protent.enabled_flag) && - (!ipcp_wantoptions[0].neg_vj)) { - return 0; - } - return 1; -} - -/* - * tty_establish_ppp - Turn the serial port into a ppp interface. - */ -int -tty_establish_ppp(fd) - int fd; -{ - int i; - - /* Pop any existing modules off the tty stream. */ - for (i = 0;; ++i) - if (ioctl(fd, I_LOOK, tty_modules[i]) < 0 - || strcmp(tty_modules[i], "ptem") == 0 - || ioctl(fd, I_POP, 0) < 0) - break; - tty_nmodules = i; - - /* Push the async hdlc module and the compressor module. */ - tty_npushed = 0; - - if(!sync_serial) { - if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) { - error("Couldn't push PPP Async HDLC module: %m"); - return -1; - } - ++tty_npushed; - } - if (kdebugflag & 4) { - i = PPPDBG_LOG + PPPDBG_AHDLC; - strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0); - } - /* - * There's no need to push comp module if we don't intend - * to compress anything - */ - if (any_compressions()) { - if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0) - error("Couldn't push PPP compression module: %m"); - else - ++tty_npushed; - } - - if (kdebugflag & 2) { - i = PPPDBG_LOG; - if (any_compressions()) - i += PPPDBG_COMP; - strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0); - } - - /* Link the serial port under the PPP multiplexor. */ - if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) { - error("Can't link tty to PPP mux: %m"); - return -1; - } - - return pppfd; -} - -/* - * tty_disestablish_ppp - Restore the serial port to normal operation. - * It attempts to reconstruct the stream with the previously popped - * modules. This shouldn't call die() because it's called from die(). - */ -void -tty_disestablish_ppp(fd) - int fd; -{ - int i; - - if (fdmuxid >= 0) { - if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) { - if (!hungup) - error("Can't unlink tty from PPP mux: %m"); - } - fdmuxid = -1; - - if (!hungup) { - while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0) - --tty_npushed; - for (i = tty_nmodules - 1; i >= 0; --i) - if (ioctl(fd, I_PUSH, tty_modules[i]) < 0) - error("Couldn't restore tty module %s: %m", - tty_modules[i]); - } - if (hungup && default_device && tty_sid > 0) { - /* - * If we have received a hangup, we need to send a SIGHUP - * to the terminal's controlling process. The reason is - * that the original stream head for the terminal hasn't - * seen the M_HANGUP message (it went up through the ppp - * driver to the stream head for our fd to /dev/ppp). - */ - kill(tty_sid, SIGHUP); - } - } -} - -/* - * Check whether the link seems not to be 8-bit clean. - */ -void -clean_check() -{ - int x; - char *s; - - if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0) - return; - s = NULL; - switch (~x) { - case RCV_B7_0: - s = "bit 7 set to 1"; - break; - case RCV_B7_1: - s = "bit 7 set to 0"; - break; - case RCV_EVNP: - s = "odd parity"; - break; - case RCV_ODDP: - s = "even parity"; - break; - } - if (s != NULL) { - warn("Serial link is not 8-bit clean:"); - warn("All received characters had %s", s); - } -} - -/* - * List of valid speeds. - */ -struct speed { - int speed_int, speed_val; -} speeds[] = { -#ifdef B50 - { 50, B50 }, -#endif -#ifdef B75 - { 75, B75 }, -#endif -#ifdef B110 - { 110, B110 }, -#endif -#ifdef B134 - { 134, B134 }, -#endif -#ifdef B150 - { 150, B150 }, -#endif -#ifdef B200 - { 200, B200 }, -#endif -#ifdef B300 - { 300, B300 }, -#endif -#ifdef B600 - { 600, B600 }, -#endif -#ifdef B1200 - { 1200, B1200 }, -#endif -#ifdef B1800 - { 1800, B1800 }, -#endif -#ifdef B2000 - { 2000, B2000 }, -#endif -#ifdef B2400 - { 2400, B2400 }, -#endif -#ifdef B3600 - { 3600, B3600 }, -#endif -#ifdef B4800 - { 4800, B4800 }, -#endif -#ifdef B7200 - { 7200, B7200 }, -#endif -#ifdef B9600 - { 9600, B9600 }, -#endif -#ifdef B19200 - { 19200, B19200 }, -#endif -#ifdef B38400 - { 38400, B38400 }, -#endif -#ifdef EXTA - { 19200, EXTA }, -#endif -#ifdef EXTB - { 38400, EXTB }, -#endif -#ifdef B57600 - { 57600, B57600 }, -#endif -#ifdef B76800 - { 76800, B76800 }, -#endif -#ifdef B115200 - { 115200, B115200 }, -#endif -#ifdef B153600 - { 153600, B153600 }, -#endif -#ifdef B230400 - { 230400, B230400 }, -#endif -#ifdef B307200 - { 307200, B307200 }, -#endif -#ifdef B460800 - { 460800, B460800 }, -#endif - { 0, 0 } -}; - -/* - * Translate from bits/second to a speed_t. - */ -static int -translate_speed(bps) - int bps; -{ - struct speed *speedp; - - if (bps == 0) - return 0; - for (speedp = speeds; speedp->speed_int; speedp++) - if (bps == speedp->speed_int) - return speedp->speed_val; - warn("speed %d not supported", bps); - return 0; -} - -/* - * Translate from a speed_t to bits/second. - */ -static int -baud_rate_of(speed) - int speed; -{ - struct speed *speedp; - - if (speed == 0) - return 0; - for (speedp = speeds; speedp->speed_int; speedp++) - if (speed == speedp->speed_val) - return speedp->speed_int; - return 0; -} - -/* - * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity, - * at the requested speed, etc. If `local' is true, set CLOCAL - * regardless of whether the modem option was specified. - */ -void -set_up_tty(fd, local) - int fd, local; -{ - int speed; - struct termios tios; -#if !defined (CRTSCTS) - struct termiox tiox; -#endif - - if (!sync_serial && tcgetattr(fd, &tios) < 0) - fatal("tcgetattr: %m"); - -#ifndef CRTSCTS - termiox_ok = 1; - if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) { - termiox_ok = 0; - if (errno != ENOTTY) - error("TCGETX: %m"); - } -#endif - - if (!restore_term) { - inittermios = tios; -#ifndef CRTSCTS - inittermiox = tiox; -#endif - if (!sync_serial) - ioctl(fd, TIOCGWINSZ, &wsinfo); - } - - tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL); -#ifdef CRTSCTS - if (crtscts > 0) - tios.c_cflag |= CRTSCTS; - else if (crtscts < 0) - tios.c_cflag &= ~CRTSCTS; -#else - if (crtscts != 0 && !termiox_ok) { - error("Can't set RTS/CTS flow control"); - } else if (crtscts > 0) { - tiox.x_hflag |= RTSXOFF|CTSXON; - } else if (crtscts < 0) { - tiox.x_hflag &= ~(RTSXOFF|CTSXON); - } -#endif - - tios.c_cflag |= CS8 | CREAD | HUPCL; - if (local || !modem) - tios.c_cflag |= CLOCAL; - tios.c_iflag = IGNBRK | IGNPAR; - tios.c_oflag = 0; - tios.c_lflag = 0; - tios.c_cc[VMIN] = 1; - tios.c_cc[VTIME] = 0; - - if (crtscts == -2) { - tios.c_iflag |= IXON | IXOFF; - tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */ - tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */ - } - - speed = translate_speed(inspeed); - if (speed) { - cfsetospeed(&tios, speed); - cfsetispeed(&tios, speed); - } else { - speed = cfgetospeed(&tios); - /* - * We can't proceed if the serial port speed is 0, - * since that implies that the serial port is disabled. - */ - if ((speed == B0) && !sync_serial) - fatal("Baud rate for %s is 0; need explicit baud rate", devnam); - } - - if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0) - fatal("tcsetattr: %m"); - -#ifndef CRTSCTS - if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){ - error("TCSETXF: %m"); - } -#endif - - baud_rate = inspeed = baud_rate_of(speed); - if (!sync_serial) - restore_term = 1; -} - -/* - * restore_tty - restore the terminal to the saved settings. - */ -void -restore_tty(fd) - int fd; -{ - if (restore_term) { - if (!default_device) { - /* - * Turn off echoing, because otherwise we can get into - * a loop with the tty and the modem echoing to each other. - * We presume we are the sole user of this tty device, so - * when we close it, it will revert to its defaults anyway. - */ - inittermios.c_lflag &= ~(ECHO | ECHONL); - } - if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0) - if (!hungup && errno != ENXIO) - warn("tcsetattr: %m"); -#ifndef CRTSCTS - if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){ - if (!hungup && errno != ENXIO) - error("TCSETXF: %m"); - } -#endif - if (!sync_serial) - ioctl(fd, TIOCSWINSZ, &wsinfo); - restore_term = 0; - } -} - -/* - * setdtr - control the DTR line on the serial port. - * This is called from die(), so it shouldn't call die(). - */ -void -setdtr(fd, on) -int fd, on; -{ - int modembits = TIOCM_DTR; - - ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits); -} - -/* - * open_loopback - open the device we use for getting packets - * in demand mode. Under Solaris 2, we use our existing fd - * to the ppp driver. - */ -int -open_ppp_loopback() -{ - return pppfd; -} - -/* - * output - Output PPP packet. - */ -void -output(unit, p, len) - int unit; - u_char *p; - int len; -{ - struct strbuf data; - int retries; - struct pollfd pfd; - - if (debug) - dbglog("sent %P", p, len); - - data.len = len; - data.buf = (caddr_t) p; - retries = 4; - while (putmsg(pppfd, NULL, &data, 0) < 0) { - if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) { - if (errno != ENXIO) - error("Couldn't send packet: %m"); - break; - } - pfd.fd = pppfd; - pfd.events = POLLOUT; - poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */ - } -} - - -/* - * wait_input - wait until there is data available, - * for the length of time specified by *timo (indefinite - * if timo is NULL). - */ -void -wait_input(timo) - struct timeval *timo; -{ - int t; - - t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000; - if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR) - fatal("poll: %m"); -} - -/* - * add_fd - add an fd to the set that wait_input waits for. - */ -void add_fd(fd) - int fd; -{ - int n; - - for (n = 0; n < n_pollfds; ++n) - if (pollfds[n].fd == fd) - return; - if (n_pollfds < MAX_POLLFDS) { - pollfds[n_pollfds].fd = fd; - pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP; - ++n_pollfds; - } else - error("Too many inputs!"); -} - -/* - * remove_fd - remove an fd from the set that wait_input waits for. - */ -void remove_fd(fd) - int fd; -{ - int n; - - for (n = 0; n < n_pollfds; ++n) { - if (pollfds[n].fd == fd) { - while (++n < n_pollfds) - pollfds[n-1] = pollfds[n]; - --n_pollfds; - break; - } - } -} - -#if 0 -/* - * wait_loop_output - wait until there is data available on the - * loopback, for the length of time specified by *timo (indefinite - * if timo is NULL). - */ -void -wait_loop_output(timo) - struct timeval *timo; -{ - wait_input(timo); -} - -/* - * wait_time - wait for a given length of time or until a - * signal is received. - */ -void -wait_time(timo) - struct timeval *timo; -{ - int n; - - n = select(0, NULL, NULL, NULL, timo); - if (n < 0 && errno != EINTR) - fatal("select: %m"); -} -#endif - - -/* - * read_packet - get a PPP packet from the serial device. - */ -int -read_packet(buf) - u_char *buf; -{ - struct strbuf ctrl, data; - int flags, len; - unsigned char ctrlbuf[sizeof(union DL_primitives) + 64]; - - for (;;) { - data.maxlen = PPP_MRU + PPP_HDRLEN; - data.buf = (caddr_t) buf; - ctrl.maxlen = sizeof(ctrlbuf); - ctrl.buf = (caddr_t) ctrlbuf; - flags = 0; - len = getmsg(pppfd, &ctrl, &data, &flags); - if (len < 0) { - if (errno == EAGAIN || errno == EINTR) - return -1; - fatal("Error reading packet: %m"); - } - - if (ctrl.len <= 0) - return data.len; - - /* - * Got a M_PROTO or M_PCPROTO message. Interpret it - * as a DLPI primitive?? - */ - if (debug) - dbglog("got dlpi prim 0x%x, len=%d", - ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len); - - } -} - -/* - * get_loop_output - get outgoing packets from the ppp device, - * and detect when we want to bring the real link up. - * Return value is 1 if we need to bring up the link, 0 otherwise. - */ -int -get_loop_output() -{ - int len; - int rv = 0; - - while ((len = read_packet(inpacket_buf)) > 0) { - if (loop_frame(inpacket_buf, len)) - rv = 1; - } - return rv; -} - -/* - * netif_set_mtu - set the MTU on the PPP network interface. - */ -void -netif_set_mtu(unit, mtu) - int unit, mtu; -{ - struct ifreq ifr; -#if defined(INET6) && defined(SOL2) - struct lifreq lifr; - int fd; -#endif /* defined(INET6) && defined(SOL2) */ - - memset(&ifr, 0, sizeof(ifr)); - strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); - ifr.ifr_metric = link_mtu; - if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) { - error("Couldn't set IP MTU (%s): %m", ifr.ifr_name); - } - -#if defined(INET6) && defined(SOL2) - fd = socket(AF_INET6, SOCK_DGRAM, 0); - if (fd < 0) - error("Couldn't open IPv6 socket: %m"); - - memset(&lifr, 0, sizeof(lifr)); - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - lifr.lifr_mtu = link_mtu; - if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) { - close(fd); - error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name); - } - close(fd); -#endif /* defined(INET6) && defined(SOL2) */ -} - -/* - * tty_send_config - configure the transmit characteristics of - * the ppp interface. - */ -void -tty_send_config(mtu, asyncmap, pcomp, accomp) - int mtu; - u_int32_t asyncmap; - int pcomp, accomp; -{ - int cf[2]; - - link_mtu = mtu; - if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) { - if (hungup && errno == ENXIO) - return; - error("Couldn't set MTU: %m"); - } - if (fdmuxid >= 0) { - if (!sync_serial) { - if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0) { - error("Couldn't set transmit ACCM: %m"); - } - } - cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0); - cf[1] = COMP_PROT | COMP_AC; - if (any_compressions() && - strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) { - error("Couldn't set prot/AC compression: %m"); - } - } -} - -/* - * ppp_set_xaccm - set the extended transmit ACCM for the interface. - */ -void -tty_set_xaccm(accm) - ext_accm accm; -{ - if (sync_serial) - return; - - if (fdmuxid >= 0 - && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) { - if (!hungup || errno != ENXIO) - warn("Couldn't set extended ACCM: %m"); - } -} - -/* - * ppp_recv_config - configure the receive-side characteristics of - * the ppp interface. - */ -void -tty_recv_config(mru, asyncmap, pcomp, accomp) - int mru; - u_int32_t asyncmap; - int pcomp, accomp; -{ - int cf[2]; - - link_mru = mru; - if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) { - if (hungup && errno == ENXIO) - return; - error("Couldn't set MRU: %m"); - } - if (fdmuxid >= 0) { - if (!sync_serial) { - if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0) { - error("Couldn't set receive ACCM: %m"); - } - } - cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0); - cf[1] = DECOMP_PROT | DECOMP_AC; - if (any_compressions() && - strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) { - error("Couldn't set prot/AC decompression: %m"); - } - } -} - -/* - * ccp_test - ask kernel whether a given compression method - * is acceptable for use. - */ -int -ccp_test(unit, opt_ptr, opt_len, for_transmit) - int unit, opt_len, for_transmit; - u_char *opt_ptr; -{ - if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP), - opt_ptr, opt_len, 0) >= 0) - return 1; - return (errno == ENOSR)? 0: -1; -} - -/* - * ccp_flags_set - inform kernel about the current state of CCP. - */ -void -ccp_flags_set(unit, isopen, isup) - int unit, isopen, isup; -{ - int cf[2]; - - cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0); - cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR; - if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) { - if (!hungup || errno != ENXIO) - error("Couldn't set kernel CCP state: %m"); - } -} - -/* - * get_idle_time - return how long the link has been idle. - */ -int -get_idle_time(u, ip) - int u; - struct ppp_idle *ip; -{ - return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0; -} - -/* - * get_ppp_stats - return statistics for the link. - */ -int -get_ppp_stats(u, stats) - int u; - struct pppd_stats *stats; -{ - struct ppp_stats s; - - if (!sync_serial && - strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) { - error("Couldn't get link statistics: %m"); - return 0; - } - stats->bytes_in = s.p.ppp_ibytes; - stats->bytes_out = s.p.ppp_obytes; - return 1; -} - -#if 0 -/* - * set_filters - transfer the pass and active filters to the kernel. - */ -int -set_filters(pass, active) - struct bpf_program *pass, *active; -{ - int ret = 1; - - if (pass->bf_len > 0) { - if (strioctl(pppfd, PPPIO_PASSFILT, pass, - sizeof(struct bpf_program), 0) < 0) { - error("Couldn't set pass-filter in kernel: %m"); - ret = 0; - } - } - if (active->bf_len > 0) { - if (strioctl(pppfd, PPPIO_ACTIVEFILT, active, - sizeof(struct bpf_program), 0) < 0) { - error("Couldn't set active-filter in kernel: %m"); - ret = 0; - } - } - return ret; -} -#endif - -/* - * ccp_fatal_error - returns 1 if decompression was disabled as a - * result of an error detected after decompression of a packet, - * 0 otherwise. This is necessary because of patent nonsense. - */ -int -ccp_fatal_error(unit) - int unit; -{ - int cf[2]; - - cf[0] = cf[1] = 0; - if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) { - if (errno != ENXIO && errno != EINVAL) - error("Couldn't get compression flags: %m"); - return 0; - } - return cf[0] & CCP_FATALERROR; -} - -/* - * sifvjcomp - config tcp header compression - */ -int -sifvjcomp(u, vjcomp, xcidcomp, xmaxcid) - int u, vjcomp, xcidcomp, xmaxcid; -{ - int cf[2]; - char maxcid[2]; - - if (vjcomp) { - maxcid[0] = xcidcomp; - maxcid[1] = 15; /* XXX should be rmaxcid */ - if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) { - error("Couldn't initialize VJ compression: %m"); - } - } - - cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */ - + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0); - cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID; - if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) { - if (vjcomp) - error("Couldn't enable VJ compression: %m"); - } - - return 1; -} - -/* - * sifup - Config the interface up and enable IP packets to pass. - */ -int -sifup(u) - int u; -{ - struct ifreq ifr; - - strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); - if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) { - error("Couldn't mark interface up (get): %m"); - return 0; - } - ifr.ifr_flags |= IFF_UP; - if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) { - error("Couldn't mark interface up (set): %m"); - return 0; - } - if_is_up = 1; - return 1; -} - -/* - * sifdown - Config the interface down and disable IP. - */ -int -sifdown(u) - int u; -{ - struct ifreq ifr; - - if (ipmuxid < 0) - return 1; - strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); - if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) { - error("Couldn't mark interface down (get): %m"); - return 0; - } - ifr.ifr_flags &= ~IFF_UP; - if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) { - error("Couldn't mark interface down (set): %m"); - return 0; - } - if_is_up = 0; - return 1; -} - -/* - * sifnpmode - Set the mode for handling packets for a given NP. - */ -int -sifnpmode(u, proto, mode) - int u; - int proto; - enum NPmode mode; -{ - int npi[2]; - - npi[0] = proto; - npi[1] = (int) mode; - if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) { - error("ioctl(set NP %d mode to %d): %m", proto, mode); - return 0; - } - return 1; -} - -#if defined(SOL2) && defined(INET6) -/* - * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass. - */ -int -sif6up(u) - int u; -{ - struct lifreq lifr; - int fd; - - fd = socket(AF_INET6, SOCK_DGRAM, 0); - if (fd < 0) { - return 0; - } - - memset(&lifr, 0, sizeof(lifr)); - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) { - close(fd); - return 0; - } - - lifr.lifr_flags |= IFF_UP; - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) { - close(fd); - return 0; - } - - if6_is_up = 1; - close(fd); - return 1; -} - -/* - * sifdown - Config the IPv6 interface down and disable IPv6. - */ -int -sif6down(u) - int u; -{ - struct lifreq lifr; - int fd; - - fd = socket(AF_INET6, SOCK_DGRAM, 0); - if (fd < 0) - return 0; - - memset(&lifr, 0, sizeof(lifr)); - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) { - close(fd); - return 0; - } - - lifr.lifr_flags &= ~IFF_UP; - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) { - close(fd); - return 0; - } - - if6_is_up = 0; - close(fd); - return 1; -} - -/* - * sif6addr - Config the interface with an IPv6 link-local address - */ -int -sif6addr(u, o, h) - int u; - eui64_t o, h; -{ - struct lifreq lifr; - struct sockaddr_storage laddr; - struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr; - int fd; - - fd = socket(AF_INET6, SOCK_DGRAM, 0); - if (fd < 0) - return 0; - - memset(&lifr, 0, sizeof(lifr)); - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - - /* - * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with - * zero values, hence the interface token came to be zero too, - * and without this, in.ndpd will complain - */ - IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o); - if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) { - close(fd); - return 0; - } - - /* - * Set the interface address and destination address - */ - IN6_LLADDR_FROM_EUI64(lifr, sin6, o); - if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) { - close(fd); - return 0; - } - - memset(&lifr, 0, sizeof(lifr)); - strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name)); - IN6_LLADDR_FROM_EUI64(lifr, sin6, h); - if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) { - close(fd); - return 0; - } - - return 1; -} - -/* - * cif6addr - Remove the IPv6 address from interface - */ -int -cif6addr(u, o, h) - int u; - eui64_t o, h; -{ - return 1; -} - -#endif /* defined(SOL2) && defined(INET6) */ - - -#define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr) - -/* - * sifaddr - Config the interface IP addresses and netmask. - */ -int -sifaddr(u, o, h, m) - int u; - u_int32_t o, h, m; -{ - struct ifreq ifr; - int ret = 1; - - memset(&ifr, 0, sizeof(ifr)); - strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); - ifr.ifr_addr.sa_family = AF_INET; - INET_ADDR(ifr.ifr_addr) = m; - if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) { - error("Couldn't set IP netmask: %m"); - ret = 0; - } - ifr.ifr_addr.sa_family = AF_INET; - INET_ADDR(ifr.ifr_addr) = o; - if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) { - error("Couldn't set local IP address: %m"); - ret = 0; - } - - /* - * On some systems, we have to explicitly set the point-to-point - * flag bit before we can set a destination address. - */ - if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0 - && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) { - ifr.ifr_flags |= IFF_POINTOPOINT; - if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) { - error("Couldn't mark interface pt-to-pt: %m"); - ret = 0; - } - } - ifr.ifr_dstaddr.sa_family = AF_INET; - INET_ADDR(ifr.ifr_dstaddr) = h; - if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) { - error("Couldn't set remote IP address: %m"); - ret = 0; - } -#if 0 /* now done in ppp_send_config */ - ifr.ifr_metric = link_mtu; - if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) { - error("Couldn't set IP MTU: %m"); - } -#endif - - remote_addr = h; - return ret; -} - -/* - * cifaddr - Clear the interface IP addresses, and delete routes - * through the interface if possible. - */ -int -cifaddr(u, o, h) - int u; - u_int32_t o, h; -{ -#if defined(__USLC__) /* was: #if 0 */ - cifroute(unit, ouraddr, hisaddr); - if (ipmuxid >= 0) { - notice("Removing ppp interface unit"); - if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) { - error("Can't remove ppp interface unit: %m"); - return 0; - } - ipmuxid = -1; - } -#endif - remote_addr = 0; - return 1; -} - -/* - * sifdefaultroute - assign a default route through the address given. - */ -int -sifdefaultroute(u, l, g) - int u; - u_int32_t l, g; -{ - struct rtentry rt; - -#if defined(__USLC__) - g = l; /* use the local address as gateway */ -#endif - memset(&rt, 0, sizeof(rt)); - rt.rt_dst.sa_family = AF_INET; - INET_ADDR(rt.rt_dst) = 0; - rt.rt_gateway.sa_family = AF_INET; - INET_ADDR(rt.rt_gateway) = g; - rt.rt_flags = RTF_GATEWAY; - - if (ioctl(ipfd, SIOCADDRT, &rt) < 0) { - error("Can't add default route: %m"); - return 0; - } - - default_route_gateway = g; - return 1; -} - -/* - * cifdefaultroute - delete a default route through the address given. - */ -int -cifdefaultroute(u, l, g) - int u; - u_int32_t l, g; -{ - struct rtentry rt; - -#if defined(__USLC__) - g = l; /* use the local address as gateway */ -#endif - memset(&rt, 0, sizeof(rt)); - rt.rt_dst.sa_family = AF_INET; - INET_ADDR(rt.rt_dst) = 0; - rt.rt_gateway.sa_family = AF_INET; - INET_ADDR(rt.rt_gateway) = g; - rt.rt_flags = RTF_GATEWAY; - - if (ioctl(ipfd, SIOCDELRT, &rt) < 0) { - error("Can't delete default route: %m"); - return 0; - } - - default_route_gateway = 0; - return 1; -} - -/* - * sifproxyarp - Make a proxy ARP entry for the peer. - */ -int -sifproxyarp(unit, hisaddr) - int unit; - u_int32_t hisaddr; -{ - struct arpreq arpreq; - - memset(&arpreq, 0, sizeof(arpreq)); - if (!get_ether_addr(hisaddr, &arpreq.arp_ha)) - return 0; - - arpreq.arp_pa.sa_family = AF_INET; - INET_ADDR(arpreq.arp_pa) = hisaddr; - arpreq.arp_flags = ATF_PERM | ATF_PUBL; - if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) { - error("Couldn't set proxy ARP entry: %m"); - return 0; - } - - proxy_arp_addr = hisaddr; - return 1; -} - -/* - * cifproxyarp - Delete the proxy ARP entry for the peer. - */ -int -cifproxyarp(unit, hisaddr) - int unit; - u_int32_t hisaddr; -{ - struct arpreq arpreq; - - memset(&arpreq, 0, sizeof(arpreq)); - arpreq.arp_pa.sa_family = AF_INET; - INET_ADDR(arpreq.arp_pa) = hisaddr; - if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) { - error("Couldn't delete proxy ARP entry: %m"); - return 0; - } - - proxy_arp_addr = 0; - return 1; -} - -/* - * get_ether_addr - get the hardware address of an interface on the - * the same subnet as ipaddr. - */ -#define MAX_IFS 32 - -static int -get_ether_addr(ipaddr, hwaddr) - u_int32_t ipaddr; - struct sockaddr *hwaddr; -{ - struct ifreq *ifr, *ifend, ifreq; - int nif; - struct ifconf ifc; - u_int32_t ina, mask; - - /* - * Scan through the system's network interfaces. - */ -#ifdef SIOCGIFNUM - if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0) -#endif - nif = MAX_IFS; - ifc.ifc_len = nif * sizeof(struct ifreq); - ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len); - if (ifc.ifc_buf == 0) - return 0; - if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) { - warn("Couldn't get system interface list: %m"); - free(ifc.ifc_buf); - return 0; - } - ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len); - for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) { - if (ifr->ifr_addr.sa_family != AF_INET) - continue; - /* - * Check that the interface is up, and not point-to-point or loopback. - */ - strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name)); - if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0) - continue; - if ((ifreq.ifr_flags & - (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP)) - != (IFF_UP|IFF_BROADCAST)) - continue; - /* - * Get its netmask and check that it's on the right subnet. - */ - if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0) - continue; - ina = INET_ADDR(ifr->ifr_addr); - mask = INET_ADDR(ifreq.ifr_addr); - if ((ipaddr & mask) == (ina & mask)) - break; - } - - if (ifr >= ifend) { - warn("No suitable interface found for proxy ARP"); - free(ifc.ifc_buf); - return 0; - } - - info("found interface %s for proxy ARP", ifr->ifr_name); - if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) { - error("Couldn't get hardware address for %s", ifr->ifr_name); - free(ifc.ifc_buf); - return 0; - } - - free(ifc.ifc_buf); - return 1; -} - -/* - * get_hw_addr_dlpi - obtain the hardware address using DLPI - */ -static int -get_hw_addr_dlpi(name, hwaddr) - char *name; - struct sockaddr *hwaddr; -{ - char *p, *q; - int unit, iffd, adrlen; - unsigned char *adrp; - char ifdev[24]; - struct { - union DL_primitives prim; - char space[64]; - } reply; - - /* - * We have to open the device and ask it for its hardware address. - * First split apart the device name and unit. - */ - slprintf(ifdev, sizeof(ifdev), "/dev/%s", name); - for (q = ifdev + strlen(ifdev); --q >= ifdev; ) - if (!isdigit(*q)) - break; - unit = atoi(q+1); - q[1] = 0; - - /* - * Open the device and do a DLPI attach and phys_addr_req. - */ - iffd = open(ifdev, O_RDWR); - if (iffd < 0) { - error("Can't open %s: %m", ifdev); - return 0; - } - if (dlpi_attach(iffd, unit) < 0 - || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0 - || dlpi_info_req(iffd) < 0 - || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) { - close(iffd); - return 0; - } - - adrlen = reply.prim.info_ack.dl_addr_length; - adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset; - -#if DL_CURRENT_VERSION >= 2 - if (reply.prim.info_ack.dl_sap_length < 0) - adrlen += reply.prim.info_ack.dl_sap_length; - else - adrp += reply.prim.info_ack.dl_sap_length; -#endif - - hwaddr->sa_family = AF_UNSPEC; - memcpy(hwaddr->sa_data, adrp, adrlen); - - return 1; -} -/* - * get_hw_addr - obtain the hardware address for a named interface. - */ -static int -get_hw_addr(name, ina, hwaddr) - char *name; - u_int32_t ina; - struct sockaddr *hwaddr; -{ - /* New way - get the address by doing an arp request. */ - int s; - struct arpreq req; - - s = socket(AF_INET, SOCK_DGRAM, 0); - if (s < 0) - return 0; - memset(&req, 0, sizeof(req)); - req.arp_pa.sa_family = AF_INET; - INET_ADDR(req.arp_pa) = ina; - if (ioctl(s, SIOCGARP, &req) < 0) { - error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina)); - return 0; - } - *hwaddr = req.arp_ha; - hwaddr->sa_family = AF_UNSPEC; - - return 1; -} - -static int -dlpi_attach(fd, ppa) - int fd, ppa; -{ - dl_attach_req_t req; - struct strbuf buf; - - req.dl_primitive = DL_ATTACH_REQ; - req.dl_ppa = ppa; - buf.len = sizeof(req); - buf.buf = (void *) &req; - return putmsg(fd, &buf, NULL, RS_HIPRI); -} - -static int -dlpi_info_req(fd) - int fd; -{ - dl_info_req_t req; - struct strbuf buf; - - req.dl_primitive = DL_INFO_REQ; - buf.len = sizeof(req); - buf.buf = (void *) &req; - return putmsg(fd, &buf, NULL, RS_HIPRI); -} - -static int -dlpi_get_reply(fd, reply, expected_prim, maxlen) - union DL_primitives *reply; - int fd, expected_prim, maxlen; -{ - struct strbuf buf; - int flags, n; - struct pollfd pfd; - - /* - * Use poll to wait for a message with a timeout. - */ - pfd.fd = fd; - pfd.events = POLLIN | POLLPRI; - do { - n = poll(&pfd, 1, 1000); - } while (n == -1 && errno == EINTR); - if (n <= 0) - return -1; - - /* - * Get the reply. - */ - buf.maxlen = maxlen; - buf.buf = (void *) reply; - flags = 0; - if (getmsg(fd, &buf, NULL, &flags) < 0) - return -1; - - if (buf.len < sizeof(ulong)) { - if (debug) - dbglog("dlpi response short (len=%d)\n", buf.len); - return -1; - } - - if (reply->dl_primitive == expected_prim) - return 0; - - if (debug) { - if (reply->dl_primitive == DL_ERROR_ACK) { - dbglog("dlpi error %d (unix errno %d) for prim %x\n", - reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno, - reply->error_ack.dl_error_primitive); - } else { - dbglog("dlpi unexpected response prim %x\n", - reply->dl_primitive); - } - } - - return -1; -} - -/* - * Return user specified netmask, modified by any mask we might determine - * for address `addr' (in network byte order). - * Here we scan through the system's list of interfaces, looking for - * any non-point-to-point interfaces which might appear to be on the same - * network as `addr'. If we find any, we OR in their netmask to the - * user-specified netmask. - */ -u_int32_t -GetMask(addr) - u_int32_t addr; -{ - u_int32_t mask, nmask, ina; - struct ifreq *ifr, *ifend, ifreq; - int nif; - struct ifconf ifc; - - addr = ntohl(addr); - if (IN_CLASSA(addr)) /* determine network mask for address class */ - nmask = IN_CLASSA_NET; - else if (IN_CLASSB(addr)) - nmask = IN_CLASSB_NET; - else - nmask = IN_CLASSC_NET; - /* class D nets are disallowed by bad_ip_adrs */ - mask = netmask | htonl(nmask); - - /* - * Scan through the system's network interfaces. - */ -#ifdef SIOCGIFNUM - if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0) -#endif - nif = MAX_IFS; - ifc.ifc_len = nif * sizeof(struct ifreq); - ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len); - if (ifc.ifc_buf == 0) - return mask; - if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) { - warn("Couldn't get system interface list: %m"); - free(ifc.ifc_buf); - return mask; - } - ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len); - for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) { - /* - * Check the interface's internet address. - */ - if (ifr->ifr_addr.sa_family != AF_INET) - continue; - ina = INET_ADDR(ifr->ifr_addr); - if ((ntohl(ina) & nmask) != (addr & nmask)) - continue; - /* - * Check that the interface is up, and not point-to-point or loopback. - */ - strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name)); - if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0) - continue; - if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK)) - != IFF_UP) - continue; - /* - * Get its netmask and OR it into our mask. - */ - if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0) - continue; - mask |= INET_ADDR(ifreq.ifr_addr); - } - - free(ifc.ifc_buf); - return mask; -} - -/* - * logwtmp - write an accounting record to the /var/adm/wtmp file. - */ -void -logwtmp(line, name, host) - const char *line, *name, *host; -{ - static struct utmpx utmpx; - - if (name[0] != 0) { - /* logging in */ - strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user)); - strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id)); - strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line)); - utmpx.ut_pid = getpid(); - utmpx.ut_type = USER_PROCESS; - } else { - utmpx.ut_type = DEAD_PROCESS; - } - gettimeofday(&utmpx.ut_tv, NULL); - updwtmpx("/var/adm/wtmpx", &utmpx); -} - -/* - * get_host_seed - return the serial number of this machine. - */ -int -get_host_seed() -{ - char buf[32]; - - if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) { - error("sysinfo: %m"); - return 0; - } - return (int) strtoul(buf, NULL, 16); -} - -static int -strioctl(fd, cmd, ptr, ilen, olen) - int fd, cmd, ilen, olen; - void *ptr; -{ - struct strioctl str; - - str.ic_cmd = cmd; - str.ic_timout = 0; - str.ic_len = ilen; - str.ic_dp = ptr; - if (ioctl(fd, I_STR, &str) == -1) - return -1; - if (str.ic_len != olen) - dbglog("strioctl: expected %d bytes, got %d for cmd %x\n", - olen, str.ic_len, cmd); - return 0; -} - -#if 0 -/* - * lock - create a lock file for the named lock device - */ - -#define LOCK_PREFIX "/var/spool/locks/LK." -static char lock_file[40]; /* name of lock file created */ - -int -lock(dev) - char *dev; -{ - int n, fd, pid; - struct stat sbuf; - char ascii_pid[12]; - - if (stat(dev, &sbuf) < 0) { - error("Can't get device number for %s: %m", dev); - return -1; - } - if ((sbuf.st_mode & S_IFMT) != S_IFCHR) { - error("Can't lock %s: not a character device", dev); - return -1; - } - slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d", - LOCK_PREFIX, major(sbuf.st_dev), - major(sbuf.st_rdev), minor(sbuf.st_rdev)); - - while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) { - if (errno == EEXIST - && (fd = open(lock_file, O_RDONLY, 0)) >= 0) { - /* Read the lock file to find out who has the device locked */ - n = read(fd, ascii_pid, 11); - if (n <= 0) { - error("Can't read pid from lock file %s", lock_file); - close(fd); - } else { - ascii_pid[n] = 0; - pid = atoi(ascii_pid); - if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) { - /* pid no longer exists - remove the lock file */ - if (unlink(lock_file) == 0) { - close(fd); - notice("Removed stale lock on %s (pid %d)", - dev, pid); - continue; - } else - warn("Couldn't remove stale lock on %s", - dev); - } else - notice("Device %s is locked by pid %d", - dev, pid); - } - close(fd); - } else - error("Can't create lock file %s: %m", lock_file); - lock_file[0] = 0; - return -1; - } - - slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid()); - write(fd, ascii_pid, 11); - - close(fd); - return 1; -} - -/* - * unlock - remove our lockfile - */ -void -unlock() -{ - if (lock_file[0]) { - unlink(lock_file); - lock_file[0] = 0; - } -} -#endif - -/* - * cifroute - delete a route through the addresses given. - */ -int -cifroute(u, our, his) - int u; - u_int32_t our, his; -{ - struct rtentry rt; - - memset(&rt, 0, sizeof(rt)); - rt.rt_dst.sa_family = AF_INET; - INET_ADDR(rt.rt_dst) = his; - rt.rt_gateway.sa_family = AF_INET; - INET_ADDR(rt.rt_gateway) = our; - rt.rt_flags = RTF_HOST; - - if (ioctl(ipfd, SIOCDELRT, &rt) < 0) { - error("Can't delete route: %m"); - return 0; - } - - return 1; -} - -/* - * have_route_to - determine if the system has a route to the specified - * IP address. Returns 0 if not, 1 if so, -1 if we can't tell. - * `addr' is in network byte order. - * For demand mode to work properly, we have to ignore routes - * through our own interface. - */ -#ifndef T_CURRENT /* needed for Solaris 2.5 */ -#define T_CURRENT MI_T_CURRENT -#endif - -int -have_route_to(addr) - u_int32_t addr; -{ -#ifdef SOL2 - int fd, r, flags, i; - struct { - struct T_optmgmt_req req; - struct opthdr hdr; - } req; - union { - struct T_optmgmt_ack ack; - unsigned char space[64]; - } ack; - struct opthdr *rh; - struct strbuf cbuf, dbuf; - int nroutes; - mib2_ipRouteEntry_t routes[8]; - mib2_ipRouteEntry_t *rp; - - fd = open(mux_dev_name, O_RDWR); - if (fd < 0) { - warn("have_route_to: couldn't open %s: %m", mux_dev_name); - return -1; - } - - req.req.PRIM_type = T_OPTMGMT_REQ; - req.req.OPT_offset = (char *) &req.hdr - (char *) &req; - req.req.OPT_length = sizeof(req.hdr); - req.req.MGMT_flags = T_CURRENT; - - req.hdr.level = MIB2_IP; - req.hdr.name = 0; - req.hdr.len = 0; - - cbuf.buf = (char *) &req; - cbuf.len = sizeof(req); - - if (putmsg(fd, &cbuf, NULL, 0) == -1) { - warn("have_route_to: putmsg: %m"); - close(fd); - return -1; - } - - for (;;) { - cbuf.buf = (char *) &ack; - cbuf.maxlen = sizeof(ack); - dbuf.buf = (char *) routes; - dbuf.maxlen = sizeof(routes); - flags = 0; - r = getmsg(fd, &cbuf, &dbuf, &flags); - if (r == -1) { - warn("have_route_to: getmsg: %m"); - close(fd); - return -1; - } - - if (cbuf.len < sizeof(struct T_optmgmt_ack) - || ack.ack.PRIM_type != T_OPTMGMT_ACK - || ack.ack.MGMT_flags != T_SUCCESS - || ack.ack.OPT_length < sizeof(struct opthdr)) { - dbglog("have_route_to: bad message len=%d prim=%d", - cbuf.len, ack.ack.PRIM_type); - close(fd); - return -1; - } - - rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset); - if (rh->level == 0 && rh->name == 0) - break; - if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) { - while (r == MOREDATA) - r = getmsg(fd, NULL, &dbuf, &flags); - continue; - } - - for (;;) { - nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t); - for (rp = routes, i = 0; i < nroutes; ++i, ++rp) { - if (rp->ipRouteMask != ~0) { - dbglog("have_route_to: dest=%x gw=%x mask=%x\n", - rp->ipRouteDest, rp->ipRouteNextHop, - rp->ipRouteMask); - if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0 - && rp->ipRouteNextHop != remote_addr) - return 1; - } - } - if (r == 0) - break; - r = getmsg(fd, NULL, &dbuf, &flags); - } - } - close(fd); - return 0; -#else - return -1; -#endif /* SOL2 */ -} - -/* - * get_pty - get a pty master/slave pair and chown the slave side to - * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space. - */ -int -get_pty(master_fdp, slave_fdp, slave_name, uid) - int *master_fdp; - int *slave_fdp; - char *slave_name; - int uid; -{ - int mfd, sfd; - char *pty_name; - struct termios tios; - - mfd = open("/dev/ptmx", O_RDWR); - if (mfd < 0) { - error("Couldn't open pty master: %m"); - return 0; - } - - pty_name = ptsname(mfd); - if (pty_name == NULL) { - error("Couldn't get name of pty slave"); - close(mfd); - return 0; - } - if (chown(pty_name, uid, -1) < 0) - warn("Couldn't change owner of pty slave: %m"); - if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0) - warn("Couldn't change permissions on pty slave: %m"); - if (unlockpt(mfd) < 0) - warn("Couldn't unlock pty slave: %m"); - - sfd = open(pty_name, O_RDWR); - if (sfd < 0) { - error("Couldn't open pty slave %s: %m", pty_name); - close(mfd); - return 0; - } - if (ioctl(sfd, I_PUSH, "ptem") < 0) - warn("Couldn't push ptem module on pty slave: %m"); - - dbglog("Using %s", pty_name); - strlcpy(slave_name, pty_name, MAXPATHLEN); - *master_fdp = mfd; - *slave_fdp = sfd; - - return 1; -} |