* sys-linux.c - System-dependent procedures for setting up
* PPP interfaces on Linux systems
*
- * Copyright (c) 1989 Carnegie Mellon University.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Carnegie Mellon University. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Copyright (c) 1994-2004 Paul Mackerras. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. The name(s) of the authors of this software must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission.
+ *
+ * 3. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by Paul Mackerras
+ * <paulus@samba.org>".
+ *
+ * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Derived from main.c and pppd.h, which are:
+ *
+ * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The name "Carnegie Mellon University" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For permission or any legal
+ * details, please contact
+ * Office of Technology Transfer
+ * Carnegie Mellon University
+ * 5000 Forbes Avenue
+ * Pittsburgh, PA 15213-3890
+ * (412) 268-4387, fax: (412) 268-7395
+ * tech-transfer@andrew.cmu.edu
+ *
+ * 4. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by Computing Services
+ * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
+ *
+ * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
+ * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
-#include <sys/errno.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <sys/sysmacros.h>
+#include <errno.h>
+#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>
#include <string.h>
#include <time.h>
#include <memory.h>
+#ifdef HAVE_UTMP_H
#include <utmp.h>
+#endif
#include <mntent.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
-#include <termios.h>
#include <unistd.h>
+#include <limits.h>
/* This is in netdevice.h. However, this compile will fail miserably if
you attempt to include netdevice.h because it has so many references
#define MAX_ADDR_LEN 7
#endif
-#if __GLIBC__ >= 2
+#if !defined(__GLIBC__) || __GLIBC__ >= 2
#include <asm/types.h> /* glibc 2 conflicts with linux/types.h */
#include <net/if.h>
#include <net/if_arp.h>
#include <linux/ppp_defs.h>
#include <linux/if_ppp.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_link.h>
+
+#ifdef INET6
+#include <linux/if_addr.h>
+#endif
+
+/* Attempt at retaining compile-support with older than 4.7 kernels, or kernels
+ * where RTM_NEWSTATS isn't defined for whatever reason.
+ */
+#ifndef RTM_NEWSTATS
+#define RTM_NEWSTATS 92
+#define RTM_GETSTATS 94
+#define IFLA_STATS_LINK_64 1
+#endif
+
+/* glibc versions prior to 2.24 do not define SOL_NETLINK */
+#ifndef SOL_NETLINK
+#define SOL_NETLINK 270
+#endif
+
+/* linux kernel versions prior to 4.3 do not define/support NETLINK_CAP_ACK */
+#ifndef NETLINK_CAP_ACK
+#define NETLINK_CAP_ACK 10
+#endif
+
+/* linux kernel versions prior to 4.7 do not define/support IFLA_PPP_DEV_FD */
+#ifndef IFLA_PPP_MAX
+/* IFLA_PPP_DEV_FD is declared as enum when IFLA_PPP_MAX is defined */
+#define IFLA_PPP_DEV_FD 1
+#endif
+
#include "pppd.h"
#include "fsm.h"
#include "ipcp.h"
-#ifdef IPX_CHANGE
-#include "ipxcp.h"
-#if __GLIBC__ >= 2 && \
- !(defined(__powerpc__) && __GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
-#include <netipx/ipx.h>
-#else
-#include <linux/ipx.h>
-#endif
-#endif /* IPX_CHANGE */
-
#ifdef PPP_FILTER
-#include <net/bpf.h>
+#include <pcap-bpf.h>
#include <linux/filter.h>
#endif /* PPP_FILTER */
#include <sys/locks.h>
#endif
+/*
+ * Instead of system header file <termios.h> use local "termios_linux.h" header
+ * file as it provides additional support for arbitrary baud rates via BOTHER.
+ */
+#include "termios_linux.h"
+
#ifdef INET6
#ifndef _LINUX_IN6_H
/*
#endif
#define IN6_LLADDR_FROM_EUI64(sin6, eui64) do { \
- memset(&sin6.s6_addr, 0, sizeof(struct in6_addr)); \
- sin6.s6_addr16[0] = htons(0xfe80); \
- eui64_copy(eui64, sin6.s6_addr32[2]); \
+ memset(&(sin6).s6_addr, 0, sizeof(struct in6_addr)); \
+ (sin6).s6_addr16[0] = htons(0xfe80); \
+ eui64_copy(eui64, (sin6).s6_addr32[2]); \
} while (0)
+static const eui64_t nulleui64;
#endif /* INET6 */
/* We can get an EIO error on an ioctl if the modem has hung up */
static int initfdflags = -1; /* Initial file descriptor flags for fd */
static int ppp_fd = -1; /* fd which is set to PPP discipline */
static int sock_fd = -1; /* socket for doing interface ioctls */
-static int slave_fd = -1;
-static int master_fd = -1;
+static int slave_fd = -1; /* pty for old-style demand mode, slave */
+static int master_fd = -1; /* pty for old-style demand mode, master */
#ifdef INET6
static int sock6_fd = -1;
#endif /* INET6 */
-int ppp_dev_fd = -1; /* fd for /dev/ppp (new style driver) */
+
+/*
+ * For the old-style kernel driver, this is the same as ppp_fd.
+ * For the new-style driver, it is the fd of an instance of /dev/ppp
+ * which is attached to the ppp unit and is used for controlling it.
+ */
+int ppp_dev_fd = -1; /* fd for /dev/ppp (new style driver) */
+
static int chindex; /* channel index (new style driver) */
static fd_set in_fds; /* set of fds that wait_input waits for */
static unsigned char inbuf[512]; /* buffer for chars read from loopback */
static int if_is_up; /* Interface has been marked up */
-static u_int32_t default_route_gateway; /* Gateway for default route added */
+static int if6_is_up; /* Interface has been marked up for IPv6, to help differentiate */
+static int have_default_route; /* Gateway for default route added */
+static int have_default_route6; /* Gateway for default IPv6 route added */
+static struct rtentry old_def_rt; /* Old default route */
+static int default_rt_repl_rest; /* replace and restore old default rt */
static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
static char proxy_arp_dev[16]; /* Device for proxy arp entry */
static u_int32_t our_old_addr; /* for detecting address changes */
#define SIN_ADDR(x) (((struct sockaddr_in *) (&(x)))->sin_addr.s_addr)
/* Prototypes for procedures local to this file. */
-static int get_flags (int fd);
-static void set_flags (int fd, int flags);
+static int modify_flags(int fd, int clear_bits, int set_bits);
static int translate_speed (int bps);
static int baud_rate_of (int speed);
static void close_route_table (void);
static int open_route_table (void);
static int read_route_table (struct rtentry *rt);
-static int defaultroute_exists (struct rtentry *rt);
+static int defaultroute_exists (struct rtentry *rt, int metric);
+static int defaultroute6_exists (struct in6_rtmsg *rt, int metric);
static int get_ether_addr (u_int32_t ipaddr, struct sockaddr *hwaddr,
char *name, int namelen);
static void decode_version (char *buf, int *version, int *mod, int *patch);
static int set_kdebugflag(int level);
static int ppp_registered(void);
static int make_ppp_unit(void);
+static int setifstate (int u, int state);
extern u_char inpacket_buf[]; /* borrowed from main.c */
+extern int dfl_route_metric;
+
/*
* SET_SA_FAMILY - set the sa_family field of a struct sockaddr,
* if it exists.
/* new_fd is the fd of a tty */
static void set_ppp_fd (int new_fd)
{
- SYSDEBUG ((LOG_DEBUG, "setting ppp_fd to %d\n", new_fd));
ppp_fd = new_fd;
if (!new_style_driver)
ppp_dev_fd = new_fd;
return 0;
}
-/********************************************************************
- *
- * Functions to read and set the flags value in the device driver
+/*
+ * modify_flags - set and clear flag bits controlling the kernel
+ * PPP driver.
*/
-
-static int get_flags (int fd)
+static int modify_flags(int fd, int clear_bits, int set_bits)
{
- int flags;
-
- if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &flags) < 0) {
- if ( ok_error (errno) )
- flags = 0;
- else
- fatal("ioctl(PPPIOCGFLAGS): %m (line %d)", __LINE__);
- }
-
- SYSDEBUG ((LOG_DEBUG, "get flags = %x\n", flags));
- return flags;
-}
+ int flags;
-/********************************************************************/
+ if (ioctl(fd, PPPIOCGFLAGS, &flags) == -1)
+ goto err;
+ flags = (flags & ~clear_bits) | set_bits;
+ if (ioctl(fd, PPPIOCSFLAGS, &flags) == -1)
+ goto err;
-static void set_flags (int fd, int flags)
-{
- SYSDEBUG ((LOG_DEBUG, "set flags = %x\n", flags));
+ return 0;
- if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &flags) < 0) {
- if (! ok_error (errno) )
- fatal("ioctl(PPPIOCSFLAGS, %x): %m (line %d)", flags, errno, __LINE__);
- }
+ err:
+ if (errno != EIO)
+ error("Failed to set PPP kernel option flags: %m");
+ return -1;
}
/********************************************************************
void sys_init(void)
{
- int flags;
-
- if (new_style_driver) {
- ppp_dev_fd = open("/dev/ppp", O_RDWR);
- if (ppp_dev_fd < 0)
- fatal("Couldn't open /dev/ppp: %m");
- flags = fcntl(ppp_dev_fd, F_GETFL);
- if (flags == -1
- || fcntl(ppp_dev_fd, F_SETFL, flags | O_NONBLOCK) == -1)
- warn("Couldn't set /dev/ppp to nonblock: %m");
- }
-
/* Get an internet socket for doing socket ioctls. */
sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
if (sock_fd < 0)
if_is_up = 0;
sifdown(0);
}
+ if (if6_is_up)
+ sif6down(0);
+
/*
* Delete any routes through the device.
*/
- if (default_route_gateway != 0)
- cifdefaultroute(0, 0, default_route_gateway);
+ if (have_default_route)
+ cifdefaultroute(0, 0, 0);
+#ifdef INET6
+ if (have_default_route6)
+ cif6defaultroute(0, nulleui64, nulleui64);
+#endif
if (has_proxy_arp)
cifproxyarp(0, proxy_arp_addr);
void
sys_close(void)
{
- if (new_style_driver)
+ if (new_style_driver && ppp_dev_fd >= 0)
close(ppp_dev_fd);
if (sock_fd >= 0)
close(sock_fd);
+#ifdef INET6
+ if (sock6_fd >= 0)
+ close(sock6_fd);
+#endif
if (slave_fd >= 0)
close(slave_fd);
if (master_fd >= 0)
close(master_fd);
- closelog();
}
/********************************************************************
static int set_kdebugflag (int requested_level)
{
- if (new_style_driver && ifunit < 0)
+ if (ppp_dev_fd < 0)
return 1;
if (ioctl(ppp_dev_fd, PPPIOCSDEBUG, &requested_level) < 0) {
if ( ! ok_error (errno) )
error("ioctl(PPPIOCSDEBUG): %m (line %d)", __LINE__);
return (0);
}
- SYSDEBUG ((LOG_INFO, "set kernel debugging level to %d",
- requested_level));
return (1);
}
| SC_LOG_FLUSH)
if (ret_fd >= 0) {
- set_flags(ppp_fd, ((get_flags(ppp_fd) & ~(SC_RCVB | SC_LOGB))
- | ((kdebugflag * SC_DEBUG) & SC_LOGB)));
+ modify_flags(ppp_fd, SC_RCVB | SC_LOGB,
+ (kdebugflag * SC_DEBUG) & SC_LOGB);
} else {
if (ioctl(tty_fd, TIOCSETD, &tty_disc) < 0 && !ok_error(errno))
warn("Couldn't reset tty to normal line discipline: %m");
int x;
if (new_style_driver) {
- /* Open another instance of /dev/ppp and connect the channel to it */
int flags;
+ /* If a ppp_fd is already open, close it first */
+ if (ppp_fd >= 0) {
+ close(ppp_fd);
+ remove_fd(ppp_fd);
+ ppp_fd = -1;
+ }
+
+ /* Open an instance of /dev/ppp and connect the channel to it */
if (ioctl(fd, PPPIOCGCHAN, &chindex) == -1) {
error("Couldn't get channel number: %m");
goto err;
error("Couldn't reopen /dev/ppp: %m");
goto err;
}
+ (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
if (ioctl(fd, PPPIOCATTCHAN, &chindex) < 0) {
error("Couldn't attach to channel %d: %m", chindex);
goto err_close;
}
if (looped)
- set_flags(ppp_dev_fd, get_flags(ppp_dev_fd) & ~SC_LOOP_TRAFFIC);
+ modify_flags(ppp_dev_fd, SC_LOOP_TRAFFIC, 0);
if (!multilink) {
add_fd(ppp_dev_fd);
}
}
- looped = 0;
-
/*
* Enable debug in the driver if requested.
*/
if (!looped)
set_kdebugflag (kdebugflag);
- SYSDEBUG ((LOG_NOTICE, "Using version %d.%d.%d of PPP driver",
- driver_version, driver_modification, driver_patch));
+ looped = 0;
return ppp_fd;
* Flush the tty output buffer so that the TIOCSETD doesn't hang.
*/
if (tcflush(tty_fd, TCIOFLUSH) < 0)
+ {
warn("tcflush failed: %m");
+ goto flushfailed;
+ }
/*
* Restore the previous line discipline
*/
warn("Couldn't restore device fd flags: %m");
}
}
+flushfailed:
initfdflags = -1;
generic_disestablish_ppp(tty_fd);
close(ppp_fd);
ppp_fd = -1;
if (demand) {
- set_flags(ppp_dev_fd, get_flags(ppp_dev_fd) | SC_LOOP_TRAFFIC);
+ modify_flags(ppp_dev_fd, 0, SC_LOOP_TRAFFIC);
looped = 1;
- } else if (ifunit >= 0 && ioctl(ppp_dev_fd, PPPIOCDETACH) < 0)
- error("Couldn't release PPP unit: %m");
- if (!multilink)
+ } else if (!doing_multilink && ppp_dev_fd >= 0) {
+ close(ppp_dev_fd);
remove_fd(ppp_dev_fd);
+ ppp_dev_fd = -1;
+ }
} else {
/* old-style driver */
if (demand)
set_ppp_fd(slave_fd);
+ else
+ ppp_dev_fd = -1;
+ }
+}
+
+/*
+ * make_ppp_unit_rtnetlink - register a new ppp network interface for ppp_dev_fd
+ * with specified req_ifname via rtnetlink. Interface name req_ifname must not
+ * be empty. Custom ppp unit id req_unit is ignored and kernel choose some free.
+ */
+static int make_ppp_unit_rtnetlink(void)
+{
+ struct {
+ struct nlmsghdr nlh;
+ struct ifinfomsg ifm;
+ struct {
+ struct rtattr rta;
+ char ifname[IFNAMSIZ];
+ } ifn;
+ struct {
+ struct rtattr rta;
+ struct {
+ struct rtattr rta;
+ char ifkind[sizeof("ppp")];
+ } ifik;
+ struct {
+ struct rtattr rta;
+ struct {
+ struct rtattr rta;
+ union {
+ int ppp_dev_fd;
+ } ppp;
+ } ifdata[1];
+ } ifid;
+ } ifli;
+ } nlreq;
+ struct {
+ struct nlmsghdr nlh;
+ struct nlmsgerr nlerr;
+ } nlresp;
+ struct sockaddr_nl nladdr;
+ struct iovec iov;
+ struct msghdr msg;
+ ssize_t nlresplen;
+ int one;
+ int fd;
+
+ fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (fd < 0) {
+ error("make_ppp_unit_rtnetlink: socket(NETLINK_ROUTE): %m (line %d)", __LINE__);
+ return 0;
+ }
+
+ /* Tell kernel to not send to us payload of acknowledgment error message. */
+ one = 1;
+ setsockopt(fd, SOL_NETLINK, NETLINK_CAP_ACK, &one, sizeof(one));
+
+ memset(&nladdr, 0, sizeof(nladdr));
+ nladdr.nl_family = AF_NETLINK;
+
+ if (bind(fd, (struct sockaddr *)&nladdr, sizeof(nladdr)) < 0) {
+ error("make_ppp_unit_rtnetlink: bind(AF_NETLINK): %m (line %d)", __LINE__);
+ close(fd);
+ return 0;
+ }
+
+ memset(&nlreq, 0, sizeof(nlreq));
+ nlreq.nlh.nlmsg_len = sizeof(nlreq);
+ nlreq.nlh.nlmsg_type = RTM_NEWLINK;
+ nlreq.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+ nlreq.ifm.ifi_family = AF_UNSPEC;
+ nlreq.ifm.ifi_type = ARPHRD_NETROM;
+ nlreq.ifn.rta.rta_len = sizeof(nlreq.ifn);
+ nlreq.ifn.rta.rta_type = IFLA_IFNAME;
+ strlcpy(nlreq.ifn.ifname, req_ifname, sizeof(nlreq.ifn.ifname));
+ nlreq.ifli.rta.rta_len = sizeof(nlreq.ifli);
+ nlreq.ifli.rta.rta_type = IFLA_LINKINFO;
+ nlreq.ifli.ifik.rta.rta_len = sizeof(nlreq.ifli.ifik);
+ nlreq.ifli.ifik.rta.rta_type = IFLA_INFO_KIND;
+ strcpy(nlreq.ifli.ifik.ifkind, "ppp");
+ nlreq.ifli.ifid.rta.rta_len = sizeof(nlreq.ifli.ifid);
+ nlreq.ifli.ifid.rta.rta_type = IFLA_INFO_DATA;
+ nlreq.ifli.ifid.ifdata[0].rta.rta_len = sizeof(nlreq.ifli.ifid.ifdata[0]);
+ nlreq.ifli.ifid.ifdata[0].rta.rta_type = IFLA_PPP_DEV_FD;
+ nlreq.ifli.ifid.ifdata[0].ppp.ppp_dev_fd = ppp_dev_fd;
+
+ memset(&nladdr, 0, sizeof(nladdr));
+ nladdr.nl_family = AF_NETLINK;
+
+ memset(&iov, 0, sizeof(iov));
+ iov.iov_base = &nlreq;
+ iov.iov_len = sizeof(nlreq);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_name = &nladdr;
+ msg.msg_namelen = sizeof(nladdr);
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ if (sendmsg(fd, &msg, 0) < 0) {
+ error("make_ppp_unit_rtnetlink: sendmsg(RTM_NEWLINK/NLM_F_CREATE): %m (line %d)", __LINE__);
+ close(fd);
+ return 0;
+ }
+
+ memset(&iov, 0, sizeof(iov));
+ iov.iov_base = &nlresp;
+ iov.iov_len = sizeof(nlresp);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_name = &nladdr;
+ msg.msg_namelen = sizeof(nladdr);
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ nlresplen = recvmsg(fd, &msg, 0);
+
+ if (nlresplen < 0) {
+ error("make_ppp_unit_rtnetlink: recvmsg(NLM_F_ACK): %m (line %d)", __LINE__);
+ close(fd);
+ return 0;
+ }
+
+ close(fd);
+
+ if (nladdr.nl_family != AF_NETLINK) {
+ error("make_ppp_unit_rtnetlink: recvmsg(NLM_F_ACK): Not a netlink packet (line %d)", __LINE__);
+ return 0;
+ }
+
+ if ((size_t)nlresplen < sizeof(nlresp) || nlresp.nlh.nlmsg_len < sizeof(nlresp)) {
+ error("make_ppp_unit_rtnetlink: recvmsg(NLM_F_ACK): Acknowledgment netlink packet too short (line %d)", __LINE__);
+ return 0;
+ }
+
+ /* acknowledgment packet for NLM_F_ACK is NLMSG_ERROR */
+ if (nlresp.nlh.nlmsg_type != NLMSG_ERROR) {
+ error("make_ppp_unit_rtnetlink: recvmsg(NLM_F_ACK): Not an acknowledgment netlink packet (line %d)", __LINE__);
+ return 0;
+ }
+
+ /* error == 0 indicates success, negative value is errno code */
+ if (nlresp.nlerr.error != 0) {
+ /*
+ * Linux kernel versions prior to 4.7 do not support creating ppp
+ * interfaces via rtnetlink API and therefore error response is
+ * expected. On older kernel versions do not show this error message.
+ * When error is different than EEXIST then pppd tries to fallback to
+ * the old ioctl method.
+ */
+ errno = (nlresp.nlerr.error < 0) ? -nlresp.nlerr.error : EINVAL;
+ if (kernel_version >= KVERSION(4,7,0))
+ error("Couldn't create ppp interface %s: %m", req_ifname);
+ return 0;
}
+
+ return 1;
}
/*
* make_ppp_unit - make a new ppp unit for ppp_dev_fd.
* Assumes new_style_driver.
*/
-static int make_ppp_unit()
+static int make_ppp_unit(void)
{
- int x;
+ int x, flags;
+
+ if (ppp_dev_fd >= 0) {
+ dbglog("in make_ppp_unit, already had /dev/ppp open?");
+ close(ppp_dev_fd);
+ }
+ ppp_dev_fd = open("/dev/ppp", O_RDWR);
+ if (ppp_dev_fd < 0)
+ fatal("Couldn't open /dev/ppp: %m");
+ flags = fcntl(ppp_dev_fd, F_GETFL);
+ if (flags == -1
+ || fcntl(ppp_dev_fd, F_SETFL, flags | O_NONBLOCK) == -1)
+ warn("Couldn't set /dev/ppp to nonblock: %m");
+
+ /*
+ * Via rtnetlink it is possible to create ppp network interface with
+ * custom ifname atomically. But it is not possible to specify custom
+ * ppp unit id.
+ *
+ * Tools like systemd, udev or NetworkManager are trying to query
+ * interface attributes based on interface name immediately when new
+ * network interface is created. And therefore immediate interface
+ * renaming is causing issues.
+ *
+ * So use rtnetlink API only when user requested custom ifname. It will
+ * avoid system issues with interface renaming.
+ */
+ if (req_unit == -1 && req_ifname[0] != '\0' && kernel_version >= KVERSION(2,1,16)) {
+ if (make_ppp_unit_rtnetlink()) {
+ if (ioctl(ppp_dev_fd, PPPIOCGUNIT, &ifunit))
+ fatal("Couldn't retrieve PPP unit id: %m");
+ return 0;
+ }
+ /*
+ * If interface with requested name already exist return error
+ * otherwise fallback to old ioctl method.
+ */
+ if (errno == EEXIST)
+ return -1;
+ }
ifunit = req_unit;
x = ioctl(ppp_dev_fd, PPPIOCNEWUNIT, &ifunit);
}
if (x < 0)
error("Couldn't create new ppp unit: %m");
+
+ if (x == 0 && req_ifname[0] != '\0') {
+ struct ifreq ifr;
+ char t[IFNAMSIZ];
+ memset(&ifr, 0, sizeof(struct ifreq));
+ slprintf(t, sizeof(t), "%s%d", PPP_DRV_NAME, ifunit);
+ strlcpy(ifr.ifr_name, t, IFNAMSIZ);
+ strlcpy(ifr.ifr_newname, req_ifname, IFNAMSIZ);
+ x = ioctl(sock_fd, SIOCSIFNAME, &ifr);
+ if (x < 0)
+ error("Couldn't rename interface %s to %s: %m", t, req_ifname);
+ else
+ info("Renamed interface %s to %s", t, req_ifname);
+ }
+
return x;
}
*/
void cfg_bundle(int mrru, int mtru, int rssn, int tssn)
{
- int flags;
-
if (!new_style_driver)
return;
/* set the mrru, mtu and flags */
if (ioctl(ppp_dev_fd, PPPIOCSMRRU, &mrru) < 0)
error("Couldn't set MRRU: %m");
- flags = get_flags(ppp_dev_fd);
- flags &= ~(SC_MP_SHORTSEQ | SC_MP_XSHORTSEQ);
- flags |= (rssn? SC_MP_SHORTSEQ: 0) | (tssn? SC_MP_XSHORTSEQ: 0)
- | (mrru? SC_MULTILINK: 0);
- set_flags(ppp_dev_fd, flags);
+ modify_flags(ppp_dev_fd, SC_MP_SHORTSEQ|SC_MP_XSHORTSEQ|SC_MULTILINK,
+ ((rssn? SC_MP_SHORTSEQ: 0) | (tssn? SC_MP_XSHORTSEQ: 0)
+ | (mrru? SC_MULTILINK: 0)));
/* connect up the channel */
if (ioctl(ppp_fd, PPPIOCCONNECT, &ifunit) < 0)
*/
int bundle_attach(int ifnum)
{
+ int master_fd;
+
if (!new_style_driver)
return -1;
- if (ioctl(ppp_dev_fd, PPPIOCATTACH, &ifnum) < 0) {
- if (errno == ENXIO)
+ master_fd = open("/dev/ppp", O_RDWR);
+ if (master_fd < 0)
+ fatal("Couldn't open /dev/ppp: %m");
+ if (ioctl(master_fd, PPPIOCATTACH, &ifnum) < 0) {
+ if (errno == ENXIO) {
+ close(master_fd);
return 0; /* doesn't still exist */
+ }
fatal("Couldn't attach to interface unit %d: %m\n", ifnum);
}
if (ioctl(ppp_fd, PPPIOCCONNECT, &ifnum) < 0)
fatal("Couldn't connect to interface unit %d: %m", ifnum);
- set_flags(ppp_dev_fd, get_flags(ppp_dev_fd) | SC_MULTILINK);
+ modify_flags(master_fd, 0, SC_MULTILINK);
+ close(master_fd);
ifunit = ifnum;
return 1;
}
+/*
+ * destroy_bundle - tell the driver to destroy our bundle.
+ */
+void destroy_bundle(void)
+{
+ if (ppp_dev_fd >= 0) {
+ close(ppp_dev_fd);
+ remove_fd(ppp_dev_fd);
+ ppp_dev_fd = -1;
+ }
+}
+
/********************************************************************
*
* clean_check - Fetch the flags for the device and generate
#ifdef B115200
{ 115200, B115200 },
#endif
+#ifdef B153600
+ { 153600, B153600 },
+#endif
#ifdef EXTA
{ 19200, EXTA },
#endif
#ifdef B230400
{ 230400, B230400 },
#endif
+#ifdef B307200
+ { 307200, B307200 },
+#endif
#ifdef B460800
{ 460800, B460800 },
#endif
+#ifdef B500000
+ { 500000, B500000 },
+#endif
+#ifdef B576000
+ { 576000, B576000 },
+#endif
+#ifdef B614400
+ { 614400, B614400 },
+#endif
#ifdef B921600
{ 921600, B921600 },
+#endif
+#ifdef B1000000
+ { 1000000, B1000000 },
+#endif
+#ifdef B1152000
+ { 1152000, B1152000 },
+#endif
+#ifdef B1500000
+ { 1500000, B1500000 },
+#endif
+#ifdef B2000000
+ { 2000000, B2000000 },
+#endif
+#ifdef B2500000
+ { 2500000, B2500000 },
+#endif
+#ifdef B3000000
+ { 3000000, B3000000 },
+#endif
+#ifdef B3500000
+ { 3500000, B3500000 },
+#endif
+#ifdef B4000000
+ { 4000000, B4000000 },
#endif
{ 0, 0 }
};
if (bps == speedp->speed_int)
return speedp->speed_val;
}
- warn("speed %d not supported", bps);
}
return 0;
}
break;
}
- speed = translate_speed(inspeed);
- if (speed) {
- cfsetospeed (&tios, speed);
- cfsetispeed (&tios, speed);
+ if (stop_bits >= 2)
+ tios.c_cflag |= CSTOPB;
+
+ if (inspeed) {
+ speed = translate_speed(inspeed);
+ if (speed) {
+ cfsetospeed (&tios, speed);
+ cfsetispeed (&tios, speed);
+ speed = cfgetospeed(&tios);
+ baud_rate = baud_rate_of(speed);
+ } else {
+#ifdef BOTHER
+ tios.c_cflag &= ~CBAUD;
+ tios.c_cflag |= BOTHER;
+ tios.c_ospeed = inspeed;
+#ifdef IBSHIFT
+ /* B0 sets input baudrate to the output baudrate */
+ tios.c_cflag &= ~(CBAUD << IBSHIFT);
+ tios.c_cflag |= B0 << IBSHIFT;
+ tios.c_ispeed = inspeed;
+#endif
+ baud_rate = inspeed;
+#else
+ baud_rate = 0;
+#endif
+ }
+ }
+ else {
+ speed = cfgetospeed(&tios);
+ baud_rate = baud_rate_of(speed);
+#ifdef BOTHER
+ if (!baud_rate)
+ baud_rate = tios.c_ospeed;
+#endif
}
+
/*
- * We can't proceed if the serial port speed is B0,
+ * We can't proceed if the serial port baud rate is unknown,
* since that implies that the serial port is disabled.
*/
- else {
- speed = cfgetospeed(&tios);
- if (speed == B0)
+ if (!baud_rate) {
+ if (inspeed)
+ fatal("speed %d not supported", inspeed);
+ else
fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
}
- if (tcsetattr(tty_fd, TCSAFLUSH, &tios) < 0)
- if (!ok_error(errno))
+ while (tcsetattr(tty_fd, TCSAFLUSH, &tios) < 0 && !ok_error(errno))
+ if (errno != EINTR)
fatal("tcsetattr: %m (line %d)", __LINE__);
-
- baud_rate = baud_rate_of(speed);
restore_term = 1;
}
p += 2;
len -= 2;
proto = (p[0] << 8) + p[1];
- if (ifunit >= 0 && !(proto >= 0xc000 || proto == PPP_CCPFRAG))
+ if (ppp_dev_fd >= 0 && !(proto >= 0xc000 || proto == PPP_CCPFRAG))
fd = ppp_dev_fd;
}
if (write(fd, p, len) < 0) {
- if (errno == EWOULDBLOCK || errno == ENOBUFS
+ if (errno == EWOULDBLOCK || errno == EAGAIN || errno == ENOBUFS
|| errno == ENXIO || errno == EIO || errno == EINTR)
warn("write: warning: %m (%d)", errno);
else
*/
void add_fd(int fd)
{
+ if (fd >= FD_SETSIZE)
+ fatal("internal error: file descriptor too large (%d)", fd);
FD_SET(fd, &in_fds);
if (fd > max_in_fd)
max_in_fd = fd;
nr = -1;
if (ppp_fd >= 0) {
nr = read(ppp_fd, buf, len);
- if (nr < 0 && errno != EWOULDBLOCK && errno != EIO && errno != EINTR)
+ if (nr < 0 && errno != EWOULDBLOCK && errno != EAGAIN
+ && errno != EIO && errno != EINTR)
error("read: %m");
if (nr < 0 && errno == ENXIO)
return 0;
}
- if (nr < 0 && new_style_driver && ifunit >= 0) {
+ if (nr < 0 && new_style_driver && ppp_dev_fd >= 0 && !bundle_eof) {
/* N.B. we read ppp_fd first since LCP packets come in there. */
nr = read(ppp_dev_fd, buf, len);
- if (nr < 0 && errno != EWOULDBLOCK && errno != EIO && errno != EINTR)
+ if (nr < 0 && errno != EWOULDBLOCK && errno != EAGAIN
+ && errno != EIO && errno != EINTR)
error("read /dev/ppp: %m");
if (nr < 0 && errno == ENXIO)
- return 0;
+ nr = 0;
+ if (nr == 0 && doing_multilink) {
+ remove_fd(ppp_dev_fd);
+ bundle_eof = 1;
+ }
}
+ if (new_style_driver && ppp_fd < 0 && ppp_dev_fd < 0)
+ nr = 0;
return (new_style_driver && nr > 0)? nr+2: nr;
}
if (n == 0)
fatal("eof on loopback");
- if (errno != EWOULDBLOCK)
+ if (errno != EWOULDBLOCK && errno != EAGAIN)
fatal("read from loopback: %m(%d)", errno);
return rv;
{
struct ifreq ifr;
- SYSDEBUG ((LOG_DEBUG, "netif_set_mtu: mtu = %d\n", mtu));
-
memset (&ifr, '\0', sizeof (ifr));
strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
ifr.ifr_mtu = mtu;
* the ppp interface.
*/
-void tty_send_config (int mtu,u_int32_t asyncmap,int pcomp,int accomp)
+void tty_send_config(int mtu, u_int32_t asyncmap, int pcomp, int accomp)
{
- u_int x;
+ int x;
-/*
- * Set the asyncmap and other parameters for the ppp device
- */
- if (!still_ppp())
- return;
- link_mtu = mtu;
- SYSDEBUG ((LOG_DEBUG, "send_config: asyncmap = %lx\n", asyncmap));
- if (ioctl(ppp_fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) {
- if (!ok_error(errno))
- fatal("ioctl(PPPIOCSASYNCMAP): %m (line %d)", __LINE__);
- return;
- }
+ if (!still_ppp())
+ return;
+ link_mtu = mtu;
+ if (ioctl(ppp_fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) {
+ if (errno != EIO && errno != ENOTTY)
+ error("Couldn't set transmit async character map: %m");
+ ++error_count;
+ return;
+ }
- x = get_flags(ppp_fd);
- x = pcomp ? x | SC_COMP_PROT : x & ~SC_COMP_PROT;
- x = accomp ? x | SC_COMP_AC : x & ~SC_COMP_AC;
- x = sync_serial ? x | SC_SYNC : x & ~SC_SYNC;
- set_flags(ppp_fd, x);
+ x = (pcomp? SC_COMP_PROT: 0) | (accomp? SC_COMP_AC: 0)
+ | (sync_serial? SC_SYNC: 0);
+ modify_flags(ppp_fd, SC_COMP_PROT|SC_COMP_AC|SC_SYNC, x);
}
/********************************************************************
void tty_set_xaccm (ext_accm accm)
{
- SYSDEBUG ((LOG_DEBUG, "set_xaccm: %08lx %08lx %08lx %08lx\n",
- accm[0], accm[1], accm[2], accm[3]));
-
if (!still_ppp())
return;
if (ioctl(ppp_fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY) {
* the ppp interface.
*/
-void tty_recv_config (int mru,u_int32_t asyncmap,int pcomp,int accomp)
+void tty_recv_config(int mru, u_int32_t asyncmap, int pcomp, int accomp)
{
- SYSDEBUG ((LOG_DEBUG, "recv_config: mru = %d\n", mru));
/*
* If we were called because the link has gone down then there is nothing
* which may be done. Just return without incident.
*/
- if (!still_ppp())
- return;
+ if (!still_ppp())
+ return;
/*
* Set the receiver parameters
*/
- if (ioctl(ppp_fd, PPPIOCSMRU, (caddr_t) &mru) < 0) {
- if ( ! ok_error (errno))
- error("ioctl(PPPIOCSMRU): %m (line %d)", __LINE__);
- }
- if (new_style_driver && ifunit >= 0
- && ioctl(ppp_dev_fd, PPPIOCSMRU, (caddr_t) &mru) < 0)
- error("Couldn't set MRU in generic PPP layer: %m");
+ if (ioctl(ppp_fd, PPPIOCSMRU, (caddr_t) &mru) < 0) {
+ if (errno != EIO && errno != ENOTTY)
+ error("Couldn't set channel receive MRU: %m");
+ }
+ if (new_style_driver && ppp_dev_fd >= 0
+ && ioctl(ppp_dev_fd, PPPIOCSMRU, (caddr_t) &mru) < 0)
+ error("Couldn't set MRU in generic PPP layer: %m");
- SYSDEBUG ((LOG_DEBUG, "recv_config: asyncmap = %lx\n", asyncmap));
- if (ioctl(ppp_fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) {
- if (!ok_error(errno))
- error("ioctl(PPPIOCSRASYNCMAP): %m (line %d)", __LINE__);
- }
+ if (ioctl(ppp_fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) {
+ if (errno != EIO && errno != ENOTTY)
+ error("Couldn't set channel receive asyncmap: %m");
+ }
}
/********************************************************************
void ccp_flags_set (int unit, int isopen, int isup)
{
- if (still_ppp() && ifunit >= 0) {
- int x = get_flags(ppp_dev_fd);
- x = isopen? x | SC_CCP_OPEN : x &~ SC_CCP_OPEN;
- x = isup? x | SC_CCP_UP : x &~ SC_CCP_UP;
- set_flags (ppp_dev_fd, x);
- }
+ int x;
+
+ x = (isopen? SC_CCP_OPEN: 0) | (isup? SC_CCP_UP: 0);
+ if (still_ppp() && ppp_dev_fd >= 0)
+ modify_flags(ppp_dev_fd, SC_CCP_OPEN|SC_CCP_UP, x);
}
#ifdef PPP_FILTER
* get_idle_time - return how long the link has been idle.
*/
int
-get_idle_time(u, ip)
- int u;
- struct ppp_idle *ip;
+get_idle_time(int u, struct ppp_idle *ip)
{
return ioctl(ppp_dev_fd, PPPIOCGIDLE, ip) >= 0;
}
/********************************************************************
*
- * get_ppp_stats - return statistics for the link.
+ * get_ppp_stats_iocl - return statistics for the link, using the ioctl() method,
+ * this only supports 32-bit counters, so need to count the wraps.
*/
-int
-get_ppp_stats(u, stats)
- int u;
- struct pppd_stats *stats;
+static int
+get_ppp_stats_ioctl(int u, struct pppd_stats *stats)
{
+ static u_int32_t previbytes = 0;
+ static u_int32_t prevobytes = 0;
+ static u_int32_t iwraps = 0;
+ static u_int32_t owraps = 0;
+
struct ifpppstatsreq req;
memset (&req, 0, sizeof (req));
stats->bytes_out = req.stats.p.ppp_obytes;
stats->pkts_in = req.stats.p.ppp_ipackets;
stats->pkts_out = req.stats.p.ppp_opackets;
- return 1;
-}
-/********************************************************************
- *
- * 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.
- */
+ if (stats->bytes_in < previbytes)
+ ++iwraps;
+ if (stats->bytes_out < prevobytes)
+ ++owraps;
-int ccp_fatal_error (int unit)
-{
- int x = get_flags(ppp_dev_fd);
+ previbytes = stats->bytes_in;
+ prevobytes = stats->bytes_out;
+
+ stats->bytes_in += (uint64_t)iwraps << 32;
+ stats->bytes_out += (uint64_t)owraps << 32;
- return x & SC_DC_FERROR;
+ return 1;
}
/********************************************************************
- *
- * path_to_procfs - find the path to the proc file system mount point
+ * get_ppp_stats_rtnetlink - return statistics for the link, using rtnetlink
+ * This provides native 64-bit counters.
*/
-static char proc_path[MAXPATHLEN];
-static int proc_path_len;
-
-static char *path_to_procfs(const char *tail)
-{
- struct mntent *mntent;
- FILE *fp;
+static int
+get_ppp_stats_rtnetlink(int u, struct pppd_stats *stats)
+{
+ static int rtnl_fd = -1;
+
+ struct sockaddr_nl nladdr;
+ struct {
+ struct nlmsghdr nlh;
+ struct if_stats_msg ifsm;
+ } nlreq;
+ struct nlresp {
+ struct nlmsghdr nlh;
+ union {
+ struct {
+ struct nlmsgerr nlerr;
+ char __end_err[0];
+ };
+ struct {
+ struct rtmsg rth;
+ struct {
+ /* We only case about these first fields from rtnl_link_stats64 */
+ uint64_t rx_packets;
+ uint64_t tx_packets;
+ uint64_t rx_bytes;
+ uint64_t tx_bytes;
+ } stats;
+ char __end_stats[0];
+ };
+ };
+ } nlresp;
+ ssize_t nlresplen;
+ struct iovec iov;
+ struct msghdr msg;
+
+ memset(&nladdr, 0, sizeof(nladdr));
+ nladdr.nl_family = AF_NETLINK;
+
+ if (rtnl_fd < 0) {
+ rtnl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (rtnl_fd < 0) {
+ error("get_ppp_stats_rtnetlink: error creating NETLINK socket: %m (line %d)", __LINE__);
+ return 0;
+ }
- if (proc_path_len == 0) {
- /* Default the mount location of /proc */
- strlcpy (proc_path, "/proc", sizeof(proc_path));
- proc_path_len = 5;
- fp = fopen(MOUNTED, "r");
- if (fp != NULL) {
- while ((mntent = getmntent(fp)) != NULL) {
- if (strcmp(mntent->mnt_type, MNTTYPE_IGNORE) == 0)
- continue;
- if (strcmp(mntent->mnt_type, "proc") == 0) {
- strlcpy(proc_path, mntent->mnt_dir, sizeof(proc_path));
- proc_path_len = strlen(proc_path);
- break;
- }
- }
- fclose (fp);
+ if (bind(rtnl_fd, (struct sockaddr *)&nladdr, sizeof(nladdr)) < 0) {
+ error("get_ppp_stats_rtnetlink: bind(AF_NETLINK): %m (line %d)", __LINE__);
+ goto err;
}
}
- strlcpy(proc_path + proc_path_len, tail,
- sizeof(proc_path) - proc_path_len);
- return proc_path;
-}
+ memset(&nlreq, 0, sizeof(nlreq));
+ nlreq.nlh.nlmsg_len = sizeof(nlreq);
+ nlreq.nlh.nlmsg_type = RTM_GETSTATS;
+ nlreq.nlh.nlmsg_flags = NLM_F_REQUEST;
-/*
- * /proc/net/route parsing stuff.
- */
-#define ROUTE_MAX_COLS 12
-FILE *route_fd = (FILE *) 0;
-static char route_buffer[512];
-static int route_dev_col, route_dest_col, route_gw_col;
-static int route_flags_col, route_mask_col;
-static int route_num_cols;
+ nlreq.ifsm.ifindex = if_nametoindex(ifname);
+ nlreq.ifsm.filter_mask = IFLA_STATS_LINK_64;
-static int open_route_table (void);
-static void close_route_table (void);
-static int read_route_table (struct rtentry *rt);
+ memset(&iov, 0, sizeof(iov));
+ iov.iov_base = &nlreq;
+ iov.iov_len = sizeof(nlreq);
-/********************************************************************
- *
- * close_route_table - close the interface to the route table
- */
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_name = &nladdr;
+ msg.msg_namelen = sizeof(nladdr);
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
-static void close_route_table (void)
-{
- if (route_fd != (FILE *) 0) {
- fclose (route_fd);
- route_fd = (FILE *) 0;
+ if (sendmsg(rtnl_fd, &msg, 0) < 0) {
+ error("get_ppp_stats_rtnetlink: sendmsg(RTM_GETSTATS): %m (line %d)", __LINE__);
+ goto err;
+ }
+
+ /* We just need to repoint to IOV ... everything else stays the same */
+ iov.iov_base = &nlresp;
+ iov.iov_len = sizeof(nlresp);
+
+ nlresplen = recvmsg(rtnl_fd, &msg, 0);
+
+ if (nlresplen < 0) {
+ error("get_ppp_stats_rtnetlink: recvmsg(RTM_GETSTATS): %m (line %d)", __LINE__);
+ goto err;
+ }
+
+ if (nlresplen < sizeof(nlresp.nlh)) {
+ error("get_ppp_stats_rtnetlink: Netlink response message was incomplete (line %d)", __LINE__);
+ goto err;
+ }
+
+ if (nlresp.nlh.nlmsg_type == NLMSG_ERROR) {
+ if (nlresplen < offsetof(struct nlresp, __end_err)) {
+ if (kernel_version >= KVERSION(4,7,0))
+ error("get_ppp_stats_rtnetlink: Netlink responded with error: %s (line %d)", strerror(-nlresp.nlerr.error), __LINE__);
+ } else {
+ error("get_ppp_stats_rtnetlink: Netlink responded with an error message, but the nlmsgerr structure is incomplete (line %d).",
+ __LINE__);
+ }
+ goto err;
+ }
+
+ if (nlresp.nlh.nlmsg_type != RTM_NEWSTATS) {
+ error("get_ppp_stats_rtnetlink: Expected RTM_NEWSTATS response, found something else (mlmsg_type %d, line %d)",
+ nlresp.nlh.nlmsg_type, __LINE__);
+ goto err;
+ }
+
+ if (nlresplen < offsetof(struct nlresp, __end_stats)) {
+ error("get_ppp_stats_rtnetlink: Obtained an insufficiently sized rtnl_link_stats64 struct from the kernel (line %d).", __LINE__);
+ goto err;
+ }
+
+ stats->bytes_in = nlresp.stats.rx_bytes;
+ stats->bytes_out = nlresp.stats.tx_bytes;
+ stats->pkts_in = nlresp.stats.rx_packets;
+ stats->pkts_out = nlresp.stats.tx_packets;
+
+ return 1;
+err:
+ close(rtnl_fd);
+ rtnl_fd = -1;
+ return 0;
+}
+
+/********************************************************************
+ * get_ppp_stats_sysfs - return statistics for the link, using the files in sysfs,
+ * this provides native 64-bit counters.
+ */
+static int
+get_ppp_stats_sysfs(int u, struct pppd_stats *stats)
+{
+ char fname[PATH_MAX+1];
+ char buf[21], *err; /* 2^64 < 10^20 */
+ int blen, fd, rlen;
+ unsigned long long val;
+
+ struct {
+ const char* fname;
+ void* ptr;
+ unsigned size;
+ } slist[] = {
+#define statfield(fn, field) { .fname = #fn, .ptr = &stats->field, .size = sizeof(stats->field) }
+ statfield(rx_bytes, bytes_in),
+ statfield(tx_bytes, bytes_out),
+ statfield(rx_packets, pkts_in),
+ statfield(tx_packets, pkts_out),
+#undef statfield
+ };
+
+ blen = snprintf(fname, sizeof(fname), "/sys/class/net/%s/statistics/", ifname);
+ if (blen >= sizeof(fname))
+ return 0; /* ifname max 15, so this should be impossible */
+
+ for (int i = 0; i < sizeof(slist) / sizeof(*slist); ++i) {
+ if (snprintf(fname + blen, sizeof(fname) - blen, "%s", slist[i].fname) >= sizeof(fname) - blen) {
+ fname[blen] = 0;
+ error("sysfs stats: filename %s/%s overflowed PATH_MAX", fname, slist[i].fname);
+ return 0;
+ }
+
+ fd = open(fname, O_RDONLY);
+ if (fd < 0) {
+ error("%s: %m", fname);
+ return 0;
+ }
+
+ rlen = read(fd, buf, sizeof(buf) - 1);
+ close(fd);
+ if (rlen < 0) {
+ error("%s: %m", fname);
+ return 0;
+ }
+ /* trim trailing \n if present */
+ while (rlen > 0 && buf[rlen-1] == '\n')
+ rlen--;
+ buf[rlen] = 0;
+
+ errno = 0;
+ val = strtoull(buf, &err, 10);
+ if (*buf < '0' || *buf > '9' || errno != 0 || *err) {
+ error("string to number conversion error converting %s (from %s) for remaining string %s%s%s",
+ buf, fname, err, errno ? ": " : "", errno ? strerror(errno) : "");
+ return 0;
+ }
+ switch (slist[i].size) {
+#define stattype(type) case sizeof(type): *(type*)slist[i].ptr = (type)val; break
+ stattype(uint64_t);
+ stattype(uint32_t);
+ stattype(uint16_t);
+ stattype(uint8_t);
+#undef stattype
+ default:
+ error("Don't know how to store stats for %s of size %u", slist[i].fname, slist[i].size);
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+/********************************************************************
+ * Periodic timer function to be used to keep stats up to date in case of ioctl
+ * polling.
+ *
+ * Given the 25s interval this should be fine up to data rates of 1.37Gbps.
+ * If you do change the timer, remember to also bring the get_ppp_stats (which
+ * sets up the initial trigger) as well.
+ */
+static void
+ppp_stats_poller(void* u)
+{
+ struct pppd_stats dummy;
+ get_ppp_stats_ioctl((long)u, &dummy);
+ TIMEOUT(ppp_stats_poller, u, 25);
+}
+
+/********************************************************************
+ * get_ppp_stats - return statistics for the link.
+ */
+int get_ppp_stats(int u, struct pppd_stats *stats)
+{
+ static int (*func)(int, struct pppd_stats*) = NULL;
+
+ if (!func) {
+ if (get_ppp_stats_rtnetlink(u, stats)) {
+ func = get_ppp_stats_rtnetlink;
+ return 1;
+ }
+ if (get_ppp_stats_sysfs(u, stats)) {
+ func = get_ppp_stats_sysfs;
+ return 1;
+ }
+ warn("statistics falling back to ioctl which only supports 32-bit counters");
+ func = get_ppp_stats_ioctl;
+ TIMEOUT(ppp_stats_poller, (void*)(long)u, 25);
+ }
+
+ return func(u, stats);
+}
+
+/********************************************************************
+ *
+ * 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 (int unit)
+{
+ int flags;
+
+ if (ioctl(ppp_dev_fd, PPPIOCGFLAGS, &flags) < 0) {
+ error("Couldn't read compression error flags: %m");
+ flags = 0;
+ }
+ return flags & SC_DC_FERROR;
+}
+
+/********************************************************************
+ *
+ * path_to_procfs - find the path to the proc file system mount point
+ */
+static char proc_path[MAXPATHLEN];
+static int proc_path_len;
+
+static char *path_to_procfs(const char *tail)
+{
+ struct mntent *mntent;
+ FILE *fp;
+
+ if (proc_path_len == 0) {
+ /* Default the mount location of /proc */
+ strlcpy (proc_path, "/proc", sizeof(proc_path));
+ proc_path_len = 5;
+ fp = fopen(MOUNTED, "r");
+ if (fp != NULL) {
+ while ((mntent = getmntent(fp)) != NULL) {
+ if (strcmp(mntent->mnt_type, MNTTYPE_IGNORE) == 0)
+ continue;
+ if (strcmp(mntent->mnt_type, "proc") == 0) {
+ strlcpy(proc_path, mntent->mnt_dir, sizeof(proc_path));
+ proc_path_len = strlen(proc_path);
+ break;
+ }
+ }
+ fclose (fp);
+ }
+ }
+
+ strlcpy(proc_path + proc_path_len, tail,
+ sizeof(proc_path) - proc_path_len);
+ return proc_path;
+}
+
+/*
+ * /proc/net/route parsing stuff.
+ */
+#define ROUTE_MAX_COLS 12
+FILE *route_fd = (FILE *) 0;
+static char route_buffer[512];
+static int route_dev_col, route_dest_col, route_gw_col;
+static int route_flags_col, route_metric_col, route_mask_col;
+static int route_num_cols;
+
+static int open_route_table (void);
+static void close_route_table (void);
+static int read_route_table (struct rtentry *rt);
+
+/********************************************************************
+ *
+ * close_route_table - close the interface to the route table
+ */
+
+static void close_route_table (void)
+{
+ if (route_fd != (FILE *) 0) {
+ fclose (route_fd);
+ route_fd = (FILE *) 0;
}
}
route_dest_col = 1;
route_gw_col = 2;
route_flags_col = 3;
+ route_metric_col = 6;
route_mask_col = 7;
route_num_cols = 8;
p = NULL;
}
+ SET_SA_FAMILY (rt->rt_dst, AF_INET);
+ SET_SA_FAMILY (rt->rt_gateway, AF_INET);
+
SIN_ADDR(rt->rt_dst) = strtoul(cols[route_dest_col], NULL, 16);
SIN_ADDR(rt->rt_gateway) = strtoul(cols[route_gw_col], NULL, 16);
SIN_ADDR(rt->rt_genmask) = strtoul(cols[route_mask_col], NULL, 16);
rt->rt_flags = (short) strtoul(cols[route_flags_col], NULL, 16);
+ rt->rt_metric = (short) strtoul(cols[route_metric_col], NULL, 10);
rt->rt_dev = cols[route_dev_col];
return 1;
/********************************************************************
*
* defaultroute_exists - determine if there is a default route
+ * with the given metric (or negative for any)
*/
-static int defaultroute_exists (struct rtentry *rt)
+static int defaultroute_exists (struct rtentry *rt, int metric)
{
int result = 0;
if (kernel_version > KVERSION(2,1,0) && SIN_ADDR(rt->rt_genmask) != 0)
continue;
- if (SIN_ADDR(rt->rt_dst) == 0L) {
+ if (SIN_ADDR(rt->rt_dst) == 0L && (metric < 0
+ || rt->rt_metric == metric)) {
result = 1;
break;
}
/********************************************************************
*
* sifdefaultroute - assign a default route through the address given.
- */
-
-int sifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway)
-{
- struct rtentry rt;
-
- if (defaultroute_exists(&rt) && strcmp(rt.rt_dev, ifname) != 0) {
- u_int32_t old_gateway = SIN_ADDR(rt.rt_gateway);
+ *
+ * If the global default_rt_repl_rest flag is set, then this function
+ * already replaced the original system defaultroute with some other
+ * route and it should just replace the current defaultroute with
+ * another one, without saving the current route. Use: demand mode,
+ * when pppd sets first a defaultroute it it's temporary ppp0 addresses
+ * and then changes the temporary addresses to the addresses for the real
+ * ppp connection when it has come up.
+ */
+
+int sifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway, bool replace)
+{
+ struct rtentry rt, tmp_rt;
+ struct rtentry *del_rt = NULL;
+
+ if (default_rt_repl_rest) {
+ /* We have already replaced the original defaultroute, if we
+ * are called again, we will delete the current default route
+ * and set the new default route in this function.
+ * - this is normally only the case the doing demand: */
+ if (defaultroute_exists(&tmp_rt, -1))
+ del_rt = &tmp_rt;
+ } else if (defaultroute_exists(&old_def_rt, -1 ) &&
+ strcmp( old_def_rt.rt_dev, ifname) != 0) {
+ /*
+ * We did not yet replace an existing default route, let's
+ * check if we should save and replace a default route:
+ */
+ u_int32_t old_gateway = SIN_ADDR(old_def_rt.rt_gateway);
- if (old_gateway != gateway)
- error("not replacing existing default route to %s [%I]",
- rt.rt_dev, old_gateway);
- return 0;
+ if (old_gateway != gateway) {
+ if (!replace) {
+ error("not replacing default route to %s [%I]",
+ old_def_rt.rt_dev, old_gateway);
+ return 0;
+ } else {
+ /* we need to copy rt_dev because we need it permanent too: */
+ char * tmp_dev = malloc(strlen(old_def_rt.rt_dev)+1);
+ strcpy(tmp_dev, old_def_rt.rt_dev);
+ old_def_rt.rt_dev = tmp_dev;
+
+ notice("replacing old default route to %s [%I]",
+ old_def_rt.rt_dev, old_gateway);
+ default_rt_repl_rest = 1;
+ del_rt = &old_def_rt;
+ }
+ }
}
- memset (&rt, '\0', sizeof (rt));
- SET_SA_FAMILY (rt.rt_dst, AF_INET);
- SET_SA_FAMILY (rt.rt_gateway, AF_INET);
+ memset (&rt, 0, sizeof (rt));
+ SET_SA_FAMILY (rt.rt_dst, AF_INET);
rt.rt_dev = ifname;
+ rt.rt_metric = dfl_route_metric + 1; /* +1 for binary compatibility */
if (kernel_version > KVERSION(2,1,0)) {
SET_SA_FAMILY (rt.rt_genmask, AF_INET);
SIN_ADDR(rt.rt_genmask) = 0L;
}
- SIN_ADDR(rt.rt_gateway) = gateway;
-
- rt.rt_flags = RTF_UP | RTF_GATEWAY;
+ rt.rt_flags = RTF_UP;
if (ioctl(sock_fd, SIOCADDRT, &rt) < 0) {
if ( ! ok_error ( errno ))
error("default route ioctl(SIOCADDRT): %m");
return 0;
}
+ if (default_rt_repl_rest && del_rt)
+ if (ioctl(sock_fd, SIOCDELRT, del_rt) < 0) {
+ if ( ! ok_error ( errno ))
+ error("del old default route ioctl(SIOCDELRT): %m(%d)", errno);
+ return 0;
+ }
- default_route_gateway = gateway;
+ have_default_route = 1;
return 1;
}
{
struct rtentry rt;
- default_route_gateway = 0;
+ have_default_route = 0;
memset (&rt, '\0', sizeof (rt));
SET_SA_FAMILY (rt.rt_dst, AF_INET);
SET_SA_FAMILY (rt.rt_gateway, AF_INET);
+ rt.rt_dev = ifname;
+
+ rt.rt_dev = ifname;
+ rt.rt_metric = dfl_route_metric + 1; /* +1 for binary compatibility */
+
if (kernel_version > KVERSION(2,1,0)) {
SET_SA_FAMILY (rt.rt_genmask, AF_INET);
SIN_ADDR(rt.rt_genmask) = 0L;
}
- SIN_ADDR(rt.rt_gateway) = gateway;
-
- rt.rt_flags = RTF_UP | RTF_GATEWAY;
+ rt.rt_flags = RTF_UP;
if (ioctl(sock_fd, SIOCDELRT, &rt) < 0 && errno != ESRCH) {
if (still_ppp()) {
if ( ! ok_error ( errno ))
return 0;
}
}
+ if (default_rt_repl_rest) {
+ notice("restoring old default route to %s [%I]",
+ old_def_rt.rt_dev, SIN_ADDR(old_def_rt.rt_gateway));
+ if (ioctl(sock_fd, SIOCADDRT, &old_def_rt) < 0) {
+ if ( ! ok_error ( errno ))
+ error("restore default route ioctl(SIOCADDRT): %m(%d)", errno);
+ return 0;
+ }
+ default_rt_repl_rest = 0;
+ }
+
+ return 1;
+}
+
+#ifdef INET6
+/*
+ * /proc/net/ipv6_route parsing stuff.
+ */
+static int route_dest_plen_col;
+static int open_route6_table (void);
+static int read_route6_table (struct in6_rtmsg *rt);
+
+/********************************************************************
+ *
+ * open_route6_table - open the interface to the route table
+ */
+static int open_route6_table (void)
+{
+ char *path;
+
+ close_route_table();
+
+ path = path_to_procfs("/net/ipv6_route");
+ route_fd = fopen (path, "r");
+ if (route_fd == NULL) {
+ error("can't open routing table %s: %m", path);
+ return 0;
+ }
+
+ /* default to usual columns */
+ route_dest_col = 0;
+ route_dest_plen_col = 1;
+ route_gw_col = 4;
+ route_metric_col = 5;
+ route_flags_col = 8;
+ route_dev_col = 9;
+ route_num_cols = 10;
+
+ return 1;
+}
+
+/********************************************************************
+ *
+ * read_route6_table - read the next entry from the route table
+ */
+
+static void hex_to_in6_addr(struct in6_addr *addr, const char *s)
+{
+ char hex8[9];
+ unsigned i;
+ uint32_t v;
+
+ hex8[8] = 0;
+ for (i = 0; i < 4; i++) {
+ memcpy(hex8, s + 8*i, 8);
+ v = strtoul(hex8, NULL, 16);
+ addr->s6_addr32[i] = v;
+ }
+}
+
+static int read_route6_table(struct in6_rtmsg *rt)
+{
+ char *cols[ROUTE_MAX_COLS], *p;
+ int col;
+
+ memset (rt, '\0', sizeof (struct in6_rtmsg));
+
+ if (fgets (route_buffer, sizeof (route_buffer), route_fd) == (char *) 0)
+ return 0;
+
+ p = route_buffer;
+ for (col = 0; col < route_num_cols; ++col) {
+ cols[col] = strtok(p, route_delims);
+ if (cols[col] == NULL)
+ return 0; /* didn't get enough columns */
+ p = NULL;
+ }
+
+ hex_to_in6_addr(&rt->rtmsg_dst, cols[route_dest_col]);
+ rt->rtmsg_dst_len = strtoul(cols[route_dest_plen_col], NULL, 16);
+ hex_to_in6_addr(&rt->rtmsg_gateway, cols[route_gw_col]);
+
+ rt->rtmsg_metric = strtoul(cols[route_metric_col], NULL, 16);
+ rt->rtmsg_flags = strtoul(cols[route_flags_col], NULL, 16);
+ rt->rtmsg_ifindex = if_nametoindex(cols[route_dev_col]);
return 1;
}
+/********************************************************************
+ *
+ * defaultroute6_exists - determine if there is a default route
+ */
+
+static int defaultroute6_exists (struct in6_rtmsg *rt, int metric)
+{
+ int result = 0;
+
+ if (!open_route6_table())
+ return 0;
+
+ while (read_route6_table(rt) != 0) {
+ if ((rt->rtmsg_flags & RTF_UP) == 0)
+ continue;
+
+ if (rt->rtmsg_dst_len != 0)
+ continue;
+ if (rt->rtmsg_dst.s6_addr32[0] == 0L
+ && rt->rtmsg_dst.s6_addr32[1] == 0L
+ && rt->rtmsg_dst.s6_addr32[2] == 0L
+ && rt->rtmsg_dst.s6_addr32[3] == 0L
+ && (metric < 0 || rt->rtmsg_metric == metric)) {
+ result = 1;
+ break;
+ }
+ }
+
+ close_route_table();
+ return result;
+}
+
+/********************************************************************
+ *
+ * sif6defaultroute - assign a default route through the address given.
+ *
+ * If the global default_rt_repl_rest flag is set, then this function
+ * already replaced the original system defaultroute with some other
+ * route and it should just replace the current defaultroute with
+ * another one, without saving the current route. Use: demand mode,
+ * when pppd sets first a defaultroute it it's temporary ppp0 addresses
+ * and then changes the temporary addresses to the addresses for the real
+ * ppp connection when it has come up.
+ */
+
+int sif6defaultroute (int unit, eui64_t ouraddr, eui64_t gateway)
+{
+ struct in6_rtmsg rt;
+ char buf[IF_NAMESIZE];
+
+ if (defaultroute6_exists(&rt, dfl_route_metric) &&
+ rt.rtmsg_ifindex != if_nametoindex(ifname)) {
+ if (rt.rtmsg_flags & RTF_GATEWAY)
+ error("not replacing existing default route via gateway");
+ else
+ error("not replacing existing default route through %s",
+ if_indextoname(rt.rtmsg_ifindex, buf));
+ return 0;
+ }
+
+ memset (&rt, 0, sizeof (rt));
+
+ rt.rtmsg_ifindex = if_nametoindex(ifname);
+ rt.rtmsg_metric = dfl_route_metric + 1; /* +1 for binary compatibility */
+ rt.rtmsg_dst_len = 0;
+
+ rt.rtmsg_flags = RTF_UP;
+ if (ioctl(sock6_fd, SIOCADDRT, &rt) < 0) {
+ if ( ! ok_error ( errno ))
+ error("default route ioctl(SIOCADDRT): %m");
+ return 0;
+ }
+
+ have_default_route6 = 1;
+ return 1;
+}
+
+/********************************************************************
+ *
+ * cif6defaultroute - delete a default route through the address given.
+ */
+
+int cif6defaultroute (int unit, eui64_t ouraddr, eui64_t gateway)
+{
+ struct in6_rtmsg rt;
+
+ have_default_route6 = 0;
+
+ memset (&rt, '\0', sizeof (rt));
+
+ rt.rtmsg_ifindex = if_nametoindex(ifname);
+ rt.rtmsg_metric = dfl_route_metric + 1; /* +1 for binary compatibility */
+ rt.rtmsg_dst_len = 0;
+
+ rt.rtmsg_flags = RTF_UP;
+ if (ioctl(sock6_fd, SIOCDELRT, &rt) < 0 && errno != ESRCH) {
+ if (still_ppp()) {
+ if ( ! ok_error ( errno ))
+ error("default route ioctl(SIOCDELRT): %m");
+ return 0;
+ }
+ }
+
+ return 1;
+}
+#endif /* INET6 */
+
/********************************************************************
*
* sifproxyarp - Make a proxy ARP entry for the peer.
return 0;
}
- SYSDEBUG ((LOG_DEBUG, "proxy arp: scanning %d interfaces for IP %s",
- ifc.ifc_len / sizeof(struct ifreq), ip_ntoa(ipaddr)));
/*
* Scan through looking for an interface with an Internet
* address on the same subnet as `ipaddr'.
if (ifr->ifr_addr.sa_family == AF_INET) {
ina = SIN_ADDR(ifr->ifr_addr);
strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
- SYSDEBUG ((LOG_DEBUG, "proxy arp: examining interface %s",
- ifreq.ifr_name));
/*
* Check that the interface is up, and not point-to-point
* nor loopback.
continue;
mask = SIN_ADDR(ifreq.ifr_addr);
- SYSDEBUG ((LOG_DEBUG, "proxy arp: interface addr %s mask %lx",
- ip_ntoa(ina), ntohl(mask)));
if (((ipaddr ^ ina) & mask) != 0)
continue; /* no match */
&bestifreq.ifr_hwaddr,
sizeof (struct sockaddr));
- SYSDEBUG ((LOG_DEBUG,
- "proxy arp: found hwaddr %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
- (int) ((unsigned char *) &hwaddr->sa_data)[0],
- (int) ((unsigned char *) &hwaddr->sa_data)[1],
- (int) ((unsigned char *) &hwaddr->sa_data)[2],
- (int) ((unsigned char *) &hwaddr->sa_data)[3],
- (int) ((unsigned char *) &hwaddr->sa_data)[4],
- (int) ((unsigned char *) &hwaddr->sa_data)[5],
- (int) ((unsigned char *) &hwaddr->sa_data)[6],
- (int) ((unsigned char *) &hwaddr->sa_data)[7]));
return 1;
}
sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
if (sock_fd < 0)
- return 0;
+ return -1;
memset(&ifreq.ifr_hwaddr, 0, sizeof(struct sockaddr));
strlcpy(ifreq.ifr_name, name, sizeof(ifreq.ifr_name));
ret = ioctl(sock_fd, SIOCGIFHWADDR, &ifreq);
}
/*
- * get_first_ethernet - return the name of the first ethernet-style
- * interface on this system.
+ * get_first_ether_hwaddr - get the hardware address for the first
+ * ethernet-style interface on this system.
*/
-char *
-get_first_ethernet()
+int
+get_first_ether_hwaddr(u_char *addr)
{
- return "eth0";
+ struct if_nameindex *if_ni, *i;
+ struct ifreq ifreq;
+ int ret, sock_fd;
+
+ sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sock_fd < 0)
+ return -1;
+
+ if_ni = if_nameindex();
+ if (!if_ni) {
+ close(sock_fd);
+ return -1;
+ }
+
+ ret = -1;
+
+ for (i = if_ni; !(i->if_index == 0 && i->if_name == NULL); i++) {
+ memset(&ifreq.ifr_hwaddr, 0, sizeof(struct sockaddr));
+ strlcpy(ifreq.ifr_name, i->if_name, sizeof(ifreq.ifr_name));
+ ret = ioctl(sock_fd, SIOCGIFHWADDR, &ifreq);
+ if (ret >= 0 && ifreq.ifr_hwaddr.sa_family == ARPHRD_ETHER) {
+ memcpy(addr, ifreq.ifr_hwaddr.sa_data, 6);
+ break;
+ }
+ ret = -1;
+ }
+
+ if_freenameindex(if_ni);
+ close(sock_fd);
+
+ return ret;
}
/********************************************************************
int my_version, my_modification, my_patch;
int osmaj, osmin, ospatch;
- no_ppp_msg =
- "This system lacks kernel support for PPP. This could be because\n"
- "the PPP kernel module could not be loaded, or because PPP was not\n"
- "included in the kernel configuration. If PPP was included as a\n"
- "module, try `/sbin/modprobe -v ppp'. If that fails, check that\n"
- "ppp.o exists in /lib/modules/`uname -r`/net.\n"
- "See README.linux file in the ppp distribution for more details.\n";
-
/* get the kernel version now, since we are called before sys_init */
uname(&utsname);
osmaj = osmin = ospatch = 0;
kernel_version = KVERSION(osmaj, osmin, ospatch);
fd = open("/dev/ppp", O_RDWR);
-#if 0
- if (fd < 0 && errno == ENOENT) {
- /* try making it and see if that helps. */
- if (mknod("/dev/ppp", S_IFCHR | S_IRUSR | S_IWUSR,
- makedev(108, 0)) >= 0) {
- fd = open("/dev/ppp", O_RDWR);
- if (fd >= 0)
- info("Created /dev/ppp device node");
- else
- unlink("/dev/ppp"); /* didn't work, undo the mknod */
- } else if (errno == EEXIST) {
- fd = open("/dev/ppp", O_RDWR);
- }
- }
-#endif /* 0 */
if (fd >= 0) {
new_style_driver = 1;
close(fd);
return 1;
}
+
if (kernel_version >= KVERSION(2,3,13)) {
+ error("Couldn't open the /dev/ppp device: %m");
if (errno == ENOENT)
no_ppp_msg =
- "pppd is unable to open the /dev/ppp device.\n"
"You need to create the /dev/ppp device node by\n"
"executing the following command as root:\n"
" mknod /dev/ppp c 108 0\n";
+ else if (errno == ENODEV || errno == ENXIO)
+ no_ppp_msg =
+ "Please load the ppp_generic kernel module.\n";
return 0;
}
+ /* we are running on a really really old kernel */
+ no_ppp_msg =
+ "This system lacks kernel support for PPP. This could be because\n"
+ "the PPP kernel module could not be loaded, or because PPP was not\n"
+ "included in the kernel configuration. If PPP was included as a\n"
+ "module, try `/sbin/modprobe -v ppp'. If that fails, check that\n"
+ "ppp.o exists in /lib/modules/`uname -r`/net.\n"
+ "See README.linux file in the ppp distribution for more details.\n";
+
/*
* Open a socket for doing the ioctl operations.
*/
}
}
- close (s);
if (!ok) {
slprintf(route_buffer, sizeof(route_buffer),
"Sorry - PPP driver version %d.%d.%d is out of date\n",
}
}
}
+ close(s);
return ok;
}
+#ifndef HAVE_LOGWTMP
/********************************************************************
*
* Update the wtmp file with the appropriate user name and tty device.
}
#endif
}
-
+#endif /* HAVE_LOGWTMP */
/********************************************************************
*
int sifvjcomp (int u, int vjcomp, int cidcomp, int maxcid)
{
- u_int x = get_flags(ppp_dev_fd);
+ u_int x;
- if (vjcomp) {
- if (ioctl (ppp_dev_fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) {
- if (! ok_error (errno))
- error("ioctl(PPPIOCSMAXCID): %m (line %d)", __LINE__);
- vjcomp = 0;
+ if (vjcomp) {
+ if (ioctl(ppp_dev_fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) {
+ error("Couldn't set up TCP header compression: %m");
+ vjcomp = 0;
+ }
}
- }
- x = vjcomp ? x | SC_COMP_TCP : x &~ SC_COMP_TCP;
- x = cidcomp ? x & ~SC_NO_TCP_CCID : x | SC_NO_TCP_CCID;
- set_flags (ppp_dev_fd, x);
+ x = (vjcomp? SC_COMP_TCP: 0) | (cidcomp? 0: SC_NO_TCP_CCID);
+ modify_flags(ppp_dev_fd, SC_COMP_TCP|SC_NO_TCP_CCID, x);
- return 1;
+ return 1;
}
/********************************************************************
int sifup(int u)
{
- struct ifreq ifr;
+ int ret;
- memset (&ifr, '\0', sizeof (ifr));
- strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
- if (ioctl(sock_fd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
- if (! ok_error (errno))
- error("ioctl (SIOCGIFFLAGS): %m (line %d)", __LINE__);
- return 0;
- }
+ if ((ret = setifstate(u, 1)))
+ if_is_up++;
- ifr.ifr_flags |= (IFF_UP | IFF_POINTOPOINT);
- if (ioctl(sock_fd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
- if (! ok_error (errno))
- error("ioctl(SIOCSIFFLAGS): %m (line %d)", __LINE__);
- return 0;
- }
- if_is_up++;
-
- return 1;
+ return ret;
}
/********************************************************************
int sifdown (int u)
{
- struct ifreq ifr;
-
if (if_is_up && --if_is_up > 0)
return 1;
+#ifdef INET6
+ if (if6_is_up)
+ return 1;
+#endif /* INET6 */
+
+ return setifstate(u, 0);
+}
+
+#ifdef INET6
+/********************************************************************
+ *
+ * sif6up - Config the interface up for IPv6
+ */
+
+int sif6up(int u)
+{
+ int ret;
+
+ if ((ret = setifstate(u, 1)))
+ if6_is_up = 1;
+
+ return ret;
+}
+
+/********************************************************************
+ *
+ * sif6down - Disable the IPv6CP protocol and config the interface
+ * down if there are no remaining protocols.
+ */
+
+int sif6down (int u)
+{
+ if6_is_up = 0;
+
+ if (if_is_up)
+ return 1;
+
+ return setifstate(u, 0);
+}
+#endif /* INET6 */
+
+/********************************************************************
+ *
+ * setifstate - Config the interface up or down
+ */
+
+static int setifstate (int u, int state)
+{
+ struct ifreq ifr;
+
memset (&ifr, '\0', sizeof (ifr));
strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
if (ioctl(sock_fd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
return 0;
}
- ifr.ifr_flags &= ~IFF_UP;
+ if (state)
+ ifr.ifr_flags |= IFF_UP;
+ else
+ ifr.ifr_flags &= ~IFF_UP;
ifr.ifr_flags |= IFF_POINTOPOINT;
if (ioctl(sock_fd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
if (! ok_error (errno))
/*
* Set the gateway address
*/
- SIN_ADDR(ifr.ifr_dstaddr) = his_adr;
- if (ioctl(sock_fd, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) {
- if (! ok_error (errno))
- error("ioctl(SIOCSIFDSTADDR): %m (line %d)", __LINE__);
- return (0);
+ if (his_adr != 0) {
+ SIN_ADDR(ifr.ifr_dstaddr) = his_adr;
+ if (ioctl(sock_fd, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) {
+ if (! ok_error (errno))
+ error("ioctl(SIOCSIFDSTADDR): %m (line %d)", __LINE__);
+ return (0);
+ }
}
/*
* Set the netmask.
}
}
- /* This way it is possible to have an IPX-only or IPv6-only interface */
+ /* This way it is possible to have an IPv6-only interface */
memset(&ifr, 0, sizeof(ifr));
SET_SA_FAMILY(ifr.ifr_addr, AF_INET);
strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
}
#ifdef INET6
+/********************************************************************
+ *
+ * sif6addr_rtnetlink - Config the interface with both IPv6 link-local addresses via rtnetlink
+ */
+static int sif6addr_rtnetlink(unsigned int iface, eui64_t our_eui64, eui64_t his_eui64)
+{
+ struct {
+ struct nlmsghdr nlh;
+ struct ifaddrmsg ifa;
+ struct {
+ struct rtattr rta;
+ struct in6_addr addr;
+ } addrs[2];
+ } nlreq;
+ struct {
+ struct nlmsghdr nlh;
+ struct nlmsgerr nlerr;
+ } nlresp;
+ struct sockaddr_nl nladdr;
+ struct iovec iov;
+ struct msghdr msg;
+ ssize_t nlresplen;
+ int one;
+ int fd;
+
+ fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (fd < 0) {
+ error("sif6addr_rtnetlink: socket(NETLINK_ROUTE): %m (line %d)", __LINE__);
+ return 0;
+ }
+
+ /*
+ * Tell kernel to not send to us payload of acknowledgment error message.
+ * NETLINK_CAP_ACK option is supported since Linux kernel version 4.3 and
+ * older kernel versions always send full payload in acknowledgment netlink
+ * message. We ignore payload of this message as we need only error code,
+ * to check if our set remote peer address request succeeded or failed.
+ * So ignore return value from the following setsockopt() call as setting
+ * option NETLINK_CAP_ACK means for us just a kernel hint / optimization.
+ */
+ one = 1;
+ setsockopt(fd, SOL_NETLINK, NETLINK_CAP_ACK, &one, sizeof(one));
+
+ memset(&nladdr, 0, sizeof(nladdr));
+ nladdr.nl_family = AF_NETLINK;
+
+ if (bind(fd, (struct sockaddr *)&nladdr, sizeof(nladdr)) < 0) {
+ error("sif6addr_rtnetlink: bind(AF_NETLINK): %m (line %d)", __LINE__);
+ close(fd);
+ return 0;
+ }
+
+ memset(&nlreq, 0, sizeof(nlreq));
+ nlreq.nlh.nlmsg_len = sizeof(nlreq);
+ nlreq.nlh.nlmsg_type = RTM_NEWADDR;
+ nlreq.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+ nlreq.ifa.ifa_family = AF_INET6;
+ nlreq.ifa.ifa_prefixlen = 128;
+ nlreq.ifa.ifa_flags = IFA_F_NODAD | IFA_F_PERMANENT;
+ nlreq.ifa.ifa_scope = RT_SCOPE_LINK;
+ nlreq.ifa.ifa_index = iface;
+ nlreq.addrs[0].rta.rta_len = sizeof(nlreq.addrs[0]);
+ nlreq.addrs[0].rta.rta_type = IFA_LOCAL;
+ IN6_LLADDR_FROM_EUI64(nlreq.addrs[0].addr, our_eui64);
+ nlreq.addrs[1].rta.rta_len = sizeof(nlreq.addrs[1]);
+ nlreq.addrs[1].rta.rta_type = IFA_ADDRESS;
+
+ /*
+ * To set only local address, older kernel expects that local address is
+ * in IFA_ADDRESS field (not IFA_LOCAL). New kernels with support for peer
+ * address, ignore IFA_ADDRESS if is same as IFA_LOCAL. So for backward
+ * compatibility when setting only local address, set it via both IFA_LOCAL
+ * and IFA_ADDRESS fields. Same logic is implemented in 'ip address' command
+ * from iproute2 project.
+ */
+ if (!eui64_iszero(his_eui64))
+ IN6_LLADDR_FROM_EUI64(nlreq.addrs[1].addr, his_eui64);
+ else
+ IN6_LLADDR_FROM_EUI64(nlreq.addrs[1].addr, our_eui64);
+
+ memset(&nladdr, 0, sizeof(nladdr));
+ nladdr.nl_family = AF_NETLINK;
+
+ memset(&iov, 0, sizeof(iov));
+ iov.iov_base = &nlreq;
+ iov.iov_len = sizeof(nlreq);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_name = &nladdr;
+ msg.msg_namelen = sizeof(nladdr);
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ if (sendmsg(fd, &msg, 0) < 0) {
+ error("sif6addr_rtnetlink: sendmsg(RTM_NEWADDR/NLM_F_CREATE): %m (line %d)", __LINE__);
+ close(fd);
+ return 0;
+ }
+
+ memset(&iov, 0, sizeof(iov));
+ iov.iov_base = &nlresp;
+ iov.iov_len = sizeof(nlresp);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_name = &nladdr;
+ msg.msg_namelen = sizeof(nladdr);
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ nlresplen = recvmsg(fd, &msg, 0);
+
+ if (nlresplen < 0) {
+ error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): %m (line %d)", __LINE__);
+ close(fd);
+ return 0;
+ }
+
+ close(fd);
+
+ if (nladdr.nl_family != AF_NETLINK) {
+ error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Not a netlink packet (line %d)", __LINE__);
+ return 0;
+ }
+
+ if ((size_t)nlresplen != sizeof(nlresp) || nlresp.nlh.nlmsg_len < sizeof(nlresp)) {
+ error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Acknowledgment netlink packet too short (line %d)", __LINE__);
+ return 0;
+ }
+
+ /* acknowledgment packet for NLM_F_ACK is NLMSG_ERROR */
+ if (nlresp.nlh.nlmsg_type != NLMSG_ERROR) {
+ error("sif6addr_rtnetlink: recvmsg(NLM_F_ACK): Not an acknowledgment netlink packet (line %d)", __LINE__);
+ return 0;
+ }
+
+ /* error == 0 indicates success, negative value is errno code */
+ if (nlresp.nlerr.error != 0) {
+ /*
+ * Linux kernel versions prior 3.11 do not support setting IPv6 peer
+ * addresses and error response is expected. On older kernel versions
+ * do not show this error message. On error pppd tries to fallback to
+ * the old IOCTL method.
+ */
+ if (kernel_version >= KVERSION(3,11,0))
+ error("sif6addr_rtnetlink: %s (line %d)", strerror(-nlresp.nlerr.error), __LINE__);
+ return 0;
+ }
+
+ return 1;
+}
+
/********************************************************************
*
* sif6addr - Config the interface with an IPv6 link-local address
struct in6_ifreq ifr6;
struct ifreq ifr;
struct in6_rtmsg rt6;
+ int ret;
if (sock6_fd < 0) {
errno = -sock6_fd;
return 0;
}
- /* Local interface */
- memset(&ifr6, 0, sizeof(ifr6));
- IN6_LLADDR_FROM_EUI64(ifr6.ifr6_addr, our_eui64);
- ifr6.ifr6_ifindex = ifr.ifr_ifindex;
- ifr6.ifr6_prefixlen = 10;
-
- if (ioctl(sock6_fd, SIOCSIFADDR, &ifr6) < 0) {
- error("sif6addr: ioctl(SIOCSIFADDR): %m (line %d)", __LINE__);
- return 0;
+ if (kernel_version >= KVERSION(2,1,16)) {
+ /* Set both local address and remote peer address (with route for it) via rtnetlink */
+ ret = sif6addr_rtnetlink(ifr.ifr_ifindex, our_eui64, his_eui64);
+ } else {
+ ret = 0;
}
- /* Route to remote host */
- memset(&rt6, 0, sizeof(rt6));
- IN6_LLADDR_FROM_EUI64(rt6.rtmsg_dst, his_eui64);
- rt6.rtmsg_flags = RTF_UP;
- rt6.rtmsg_dst_len = 10;
- rt6.rtmsg_ifindex = ifr.ifr_ifindex;
- rt6.rtmsg_metric = 1;
-
- if (ioctl(sock6_fd, SIOCADDRT, &rt6) < 0) {
- error("sif6addr: ioctl(SIOCADDRT): %m (line %d)", __LINE__);
- return 0;
+ /*
+ * Linux kernel versions prior 3.11 do not support setting IPv6 peer address
+ * via rtnetlink. So if sif6addr_rtnetlink() fails then try old IOCTL method.
+ */
+ if (!ret) {
+ /* Local interface */
+ memset(&ifr6, 0, sizeof(ifr6));
+ IN6_LLADDR_FROM_EUI64(ifr6.ifr6_addr, our_eui64);
+ ifr6.ifr6_ifindex = ifr.ifr_ifindex;
+ ifr6.ifr6_prefixlen = 128;
+
+ if (ioctl(sock6_fd, SIOCSIFADDR, &ifr6) < 0) {
+ error("sif6addr: ioctl(SIOCSIFADDR): %m (line %d)", __LINE__);
+ return 0;
+ }
+ }
+
+ if (!ret && !eui64_iszero(his_eui64)) {
+ /*
+ * Linux kernel does not provide AF_INET6 ioctl SIOCSIFDSTADDR for
+ * setting remote peer host address, so set only route to remote host.
+ */
+
+ /* Route to remote host */
+ memset(&rt6, 0, sizeof(rt6));
+ IN6_LLADDR_FROM_EUI64(rt6.rtmsg_dst, his_eui64);
+ rt6.rtmsg_flags = RTF_UP;
+ rt6.rtmsg_dst_len = 128;
+ rt6.rtmsg_ifindex = ifr.ifr_ifindex;
+ rt6.rtmsg_metric = 1;
+
+ if (ioctl(sock6_fd, SIOCADDRT, &rt6) < 0) {
+ error("sif6addr: ioctl(SIOCADDRT): %m (line %d)", __LINE__);
+ return 0;
+ }
}
return 1;
memset(&ifr6, 0, sizeof(ifr6));
IN6_LLADDR_FROM_EUI64(ifr6.ifr6_addr, our_eui64);
ifr6.ifr6_ifindex = ifr.ifr_ifindex;
- ifr6.ifr6_prefixlen = 10;
+ ifr6.ifr6_prefixlen = 128;
if (ioctl(sock6_fd, SIOCDIFADDR, &ifr6) < 0) {
if (errno != EADDRNOTAVAIL) {
* to the uid given. Assumes slave_name points to >= 16 bytes of space.
*/
int
-get_pty(master_fdp, slave_fdp, slave_name, uid)
- int *master_fdp;
- int *slave_fdp;
- char *slave_name;
- int uid;
+get_pty(int *master_fdp, int *slave_fdp, char *slave_name, int uid)
{
- int i, mfd, sfd = -1;
+ int i, mfd, ret, sfd = -1;
char pty_name[16];
struct termios tios;
warn("Couldn't unlock pty slave %s: %m", pty_name);
#endif
if ((sfd = open(pty_name, O_RDWR | O_NOCTTY)) < 0)
+ {
warn("Couldn't open pty slave %s: %m", pty_name);
+ close(mfd);
+ }
}
}
#endif /* TIOCGPTN */
pty_name[5] = 't';
sfd = open(pty_name, O_RDWR | O_NOCTTY, 0);
if (sfd >= 0) {
- fchown(sfd, uid, -1);
- fchmod(sfd, S_IRUSR | S_IWUSR);
+ ret = fchown(sfd, uid, -1);
+ if (ret != 0) {
+ warn("Couldn't change ownership of %s, %m", pty_name);
+ }
+ ret = fchmod(sfd, S_IRUSR | S_IWUSR);
+ if (ret != 0) {
+ warn("Couldn't change permissions of %s, %m", pty_name);
+ }
break;
}
close(mfd);
/* allocate ourselves a ppp unit */
if (make_ppp_unit() < 0)
die(1);
- set_flags(ppp_dev_fd, SC_LOOP_TRAFFIC);
+ modify_flags(ppp_dev_fd, 0, SC_LOOP_TRAFFIC);
set_kdebugflag(kdebugflag);
ppp_fd = -1;
return ppp_dev_fd;
if (!get_pty(&master_fd, &slave_fd, loop_name, 0))
fatal("No free pty for loopback");
- SYSDEBUG(("using %s for loopback", loop_name));
set_ppp_fd(slave_fd);
*/
int
-sifnpmode(u, proto, mode)
- int u;
- int proto;
- enum NPmode mode;
+sifnpmode(int u, int proto, enum NPmode mode)
{
struct npioctl npi;
return 1;
}
-\f
-/********************************************************************
- *
- * sipxfaddr - Config the interface IPX networknumber
- */
-
-int sipxfaddr (int unit, unsigned long int network, unsigned char * node )
-{
- int result = 1;
-
-#ifdef IPX_CHANGE
- int skfd;
- struct ifreq ifr;
- struct sockaddr_ipx *sipx = (struct sockaddr_ipx *) &ifr.ifr_addr;
-
- skfd = socket (AF_IPX, SOCK_DGRAM, 0);
- if (skfd < 0) {
- if (! ok_error (errno))
- dbglog("socket(AF_IPX): %m (line %d)", __LINE__);
- result = 0;
- }
- else {
- memset (&ifr, '\0', sizeof (ifr));
- strlcpy (ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
-
- memcpy (sipx->sipx_node, node, IPX_NODE_LEN);
- sipx->sipx_family = AF_IPX;
- sipx->sipx_port = 0;
- sipx->sipx_network = htonl (network);
- sipx->sipx_type = IPX_FRAME_ETHERII;
- sipx->sipx_action = IPX_CRTITF;
-/*
- * Set the IPX device
- */
- if (ioctl(skfd, SIOCSIFADDR, (caddr_t) &ifr) < 0) {
- result = 0;
- if (errno != EEXIST) {
- if (! ok_error (errno))
- dbglog("ioctl(SIOCSIFADDR, CRTITF): %m (line %d)", __LINE__);
- }
- else {
- warn("ioctl(SIOCSIFADDR, CRTITF): Address already exists");
- }
- }
- close (skfd);
- }
-#endif
- return result;
-}
-
-/********************************************************************
- *
- * cipxfaddr - Clear the information for the IPX network. The IPX routes
- * are removed and the device is no longer able to pass IPX
- * frames.
- */
-
-int cipxfaddr (int unit)
-{
- int result = 1;
-
-#ifdef IPX_CHANGE
- int skfd;
- struct ifreq ifr;
- struct sockaddr_ipx *sipx = (struct sockaddr_ipx *) &ifr.ifr_addr;
-
- skfd = socket (AF_IPX, SOCK_DGRAM, 0);
- if (skfd < 0) {
- if (! ok_error (errno))
- dbglog("socket(AF_IPX): %m (line %d)", __LINE__);
- result = 0;
- }
- else {
- memset (&ifr, '\0', sizeof (ifr));
- strlcpy (ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
-
- sipx->sipx_type = IPX_FRAME_ETHERII;
- sipx->sipx_action = IPX_DLTITF;
- sipx->sipx_family = AF_IPX;
-/*
- * Set the IPX device
- */
- if (ioctl(skfd, SIOCSIFADDR, (caddr_t) &ifr) < 0) {
- if (! ok_error (errno))
- info("ioctl(SIOCSIFADDR, IPX_DLTITF): %m (line %d)", __LINE__);
- result = 0;
- }
- close (skfd);
- }
-#endif
- return result;
-}
-
/*
* Use the hostname as part of the random number seed.
*/
int
-get_host_seed()
+get_host_seed(void)
{
int h;
char *p = hostname;
int
sys_check_options(void)
{
-#ifdef IPX_CHANGE
-/*
- * Disable the IPX protocol if the support is not present in the kernel.
- */
- char *path;
-
- if (ipxcp_protent.enabled_flag) {
- struct stat stat_buf;
- if ((path = path_to_procfs("/net/ipx_interface")) == 0
- || lstat(path, &stat_buf) < 0) {
- error("IPX support is not present in the kernel\n");
- ipxcp_protent.enabled_flag = 0;
- }
- }
-#endif
if (demand && driver_is_old) {
option_error("demand dialling is not supported by kernel driver "
"version %d.%d.%d", driver_version, driver_modification,
}
return 1;
}
+
+/********************************************************************
+ *
+ * get_time - Get current time, monotonic if possible.
+ */
+int
+get_time(struct timeval *tv)
+{
+/* Old glibc (< 2.3.4) does define CLOCK_MONOTONIC, but kernel may have it.
+ * Runtime checking makes it safe. */
+#ifndef CLOCK_MONOTONIC
+#define CLOCK_MONOTONIC 1
+#endif
+ static int monotonic = -1;
+ struct timespec ts;
+ int ret;
+
+ if (monotonic) {
+ ret = clock_gettime(CLOCK_MONOTONIC, &ts);
+ if (ret == 0) {
+ monotonic = 1;
+ if (tv) {
+ tv->tv_sec = ts.tv_sec;
+ tv->tv_usec = ts.tv_nsec / 1000;
+ }
+ return ret;
+ } else if (monotonic > 0)
+ return ret;
+
+ monotonic = 0;
+ warn("Couldn't use monotonic clock source: %m");
+ }
+
+ return gettimeofday(tv, NULL);
+}
projects / ppp.git / blobdiff