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conf.c
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conf.c
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/*
* Copyright (c) 2002-2009 Chris Cappuccio <chris@nmedia.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, 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.
*/
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <pwd.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/param.h>
#include <sys/sockio.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/limits.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#include <netinet6/in6_var.h>
#include <net/if_vlan_var.h>
#include <net/route.h>
#include <net/pfvar.h>
#include <netmpls/mpls.h>
#include <netinet/ip_ipsp.h>
#include <net/if_pfsync.h>
#include <net/if_pflow.h>
#include <netdb.h>
#include <ifaddrs.h>
#include <arpa/inet.h>
#include <limits.h>
#include "stringlist.h"
#include "externs.h"
#include "bridge.h"
#include "ctl.h"
#include "sysctl.h"
#define IPSIZ 256 /*
* max theoretical size of ipv4 or ipv6
* text representation
*/
#define TMPSIZ 1024 /* size of temp strings */
#define ROUTEMTU 32768 /* common route MTU */
#define MTU_IGNORE ULONG_MAX /* ignore this "default" mtu */
void conf_db_single(FILE *, char *, char *, char *);
void conf_print_rtm(FILE *, struct rt_msghdr *, char *, int);
int conf_ifaddrs(FILE *, char *, int, int);
int conf_ifaddr_dhcp(FILE *, char *, int, int);
void conf_lladdr(FILE *, char *);
void conf_ifflags(FILE *, int, char *, int, u_char);
void conf_vnetid(FILE *, int, char *);
void conf_vnetflowid(FILE *, int, char *);
void conf_parent(FILE *, int, char *);
void conf_patch(FILE *, int, char *);
void conf_brcfg(FILE *, int, struct if_nameindex *, char *);
void conf_ifxflags(FILE *, int, char *);
void conf_rtables(FILE *);
void conf_rtables_rtable(FILE *, int);
void conf_rdomain(FILE *, int, char *);
void conf_tunnel(FILE *, int, char *);
void conf_ifmetrics(FILE *, int, struct if_data, char *);
void conf_pflow(FILE *, int, char *);
void conf_pwe3(FILE *, int, char *);
void conf_ctl(FILE *, char *, char *, int);
void conf_intrtlabel(FILE *, int, char *);
void conf_intgroup(FILE *, int, char *);
void conf_keepalive(FILE *, int, char *);
void conf_rtflags(char *, int, struct rt_msghdr *rtm);
int dhcpleased_has_defaultroute(struct sockaddr_rtlabel *);
int dhcpleased_controls_interface(char *, int);
int default_txprio(char *);
int default_rxprio(char *);
int default_llpriority(char *);
int islateif(char *);
int isdefaultroute(struct sockaddr *, struct sockaddr *);
int scantext(char *, char *);
int ipv6ll_db_compare(struct sockaddr_in6 *, struct sockaddr_in6 *,
char *);
static const struct {
char *name;
u_long mtu;
} defmtus[] = {
{ "gre", 1476 },
{ "wg", 1420 },
{ "gif", 1280 },
{ "enc", 1536 },
{ "pflow", MTU_IGNORE },
{ "pflog", MTU_IGNORE },
{ "pfsync", MTU_IGNORE },
{ "lo", MTU_IGNORE },
};
static const struct {
char *name;
int rxprio;
int txprio;
} defprios[] = {
{ "bpe", IF_HDRPRIO_OUTER, IF_HDRPRIO_PACKET },
{ "nvgre", IF_HDRPRIO_PACKET, 0 },
{ "etherip", IF_HDRPRIO_PACKET, 0 },
{ "gre", IF_HDRPRIO_PACKET, IF_HDRPRIO_PAYLOAD },
{ "mgre", IF_HDRPRIO_PACKET, IF_HDRPRIO_PAYLOAD },
{ "egre", IF_HDRPRIO_PACKET, 0 },
{ "mpe", IF_HDRPRIO_PACKET, 0 },
{ "mpip", IF_HDRPRIO_PACKET, 0 },
{ "mpw", IF_HDRPRIO_PACKET, 0 },
{ "vxlan", IF_HDRPRIO_OUTER, 0 },
{ "vlan", IF_HDRPRIO_OUTER, IF_HDRPRIO_PACKET },
{ "svlan", IF_HDRPRIO_OUTER, IF_HDRPRIO_PACKET },
{ "gif", IF_HDRPRIO_PAYLOAD, IF_HDRPRIO_PAYLOAD },
{ "eoip", IF_HDRPRIO_PACKET, 0 },
};
static const struct {
char *name;
int llpriority;
} defllpriority[] = {
{ "gre", IFQ_TOS2PRIO(IPTOS_PREC_INTERNETCONTROL) },
{ "aggr", IFQ_MAXPRIO },
{ "tpmr", IFQ_MAXPRIO },
};
/*
* these interfaces get started in a specific order
*
* pfsync gets delayed until pf rules are loaded
*
* /etc/netstart says:
*
* The trunk interfaces need to come up first in this list.
* The (s)vlan interfaces need to come up after trunk.
* Configure all the carp interfaces which we know about before default route.
*
* Configure PPPoE, GIF, GRE and TUN interfaces, delayed because they require
* routes to be set. TUN might depend on PPPoE, and GIF or GRE may depend on
* either of them.
*/
static const struct {
char *name;
} latestartifs[] = {
{ "aggr" },
{ "trunk" },
{ "svlan" },
{ "vlan" },
{ "carp" },
{ "pppoe" },
{ "pfsync" },
{ "tun" },
{ "tap" },
{ "gif" },
{ "etherip" },
{ "gre" },
{ "egre" },
{ "nvgre" },
{ "eoip" },
{ "vxlan" },
{ "pflow" },
{ "wg" },
{ "bridge" },
{ "veb" },
{ "tpmr" }
};
int
conf(FILE *output)
{
char cpass[_PASSWORD_LEN+1];
char hostbuf[MAXHOSTNAMELEN];
off_t offset;
fprintf(output, "!\n");
gethostname (hostbuf, sizeof(hostbuf));
fprintf(output, "hostname %s\n", hostbuf);
if (read_pass(cpass, sizeof(cpass))) {
fprintf(output, "enable secret blowfish %s\n", cpass);
} else {
if (errno != ENOENT)
printf("%% Unable to read run-time crypt repository:"
" %s\n", strerror(errno));
}
fprintf(output, "!\n");
conf_ctl(output, "", "motd", 0);
/*
* start all intefaces not listed in 'latestartifs'
*/
conf_interfaces(output, NULL, 0);
/*
* start these interfaces in specific order
*/
conf_interfaces(output, "aggr", 0);
conf_interfaces(output, "trunk", 0);
conf_interfaces(output, "svlan", 0);
conf_interfaces(output, "vlan", 0);
conf_interfaces(output, "carp", 0);
conf_interfaces(output, "pppoe", 0);
fprintf(output, "!\n");
/*
* check out how sysctls are doing these days
*
* Each of these options, like most other things in the config output
* (such as interface flags), must display if the kernel's default
* setting is not currently set.
*/
conf_sysctls(output);
fprintf(output, "!\n");
/*
* print static arp and route entries in configuration file format
*/
conf_arp(output, "arp ");
conf_ndp(output, "ndp ");
conf_routes(output, "route ", AF_INET, RTF_STATIC, 0);
conf_routes(output, "route ", AF_INET6, RTF_STATIC, 0);
fprintf(output, "!\n");
/*
* these interfaces must start after routes are set
*/
conf_interfaces(output, "tun", 0);
conf_interfaces(output, "tap", 0);
conf_interfaces(output, "gif", 0);
conf_interfaces(output, "etherip", 0);
conf_interfaces(output, "gre", 0);
conf_interfaces(output, "egre", 0);
conf_interfaces(output, "nvgre", 0);
conf_interfaces(output, "eoip", 0);
conf_interfaces(output, "vxlan", 0);
conf_interfaces(output, "wg", 0);
conf_interfaces(output, "bridge", 0);
conf_interfaces(output, "veb", 0);
conf_interfaces(output, "tpmr", 0);
fprintf(output, "!\n");
conf_ctl(output, "", "pf", 0);
/*
* this interface must start after pf is loaded
*/
conf_interfaces(output, "pfsync", 0);
conf_interfaces(output, "pflow", 0);
conf_ctl(output, "", "snmp", 0);
conf_ctl(output, "", "resolv", 0);
conf_ctl(output, "", "ldp", 0);
conf_ctl(output, "", "rip", 0);
conf_ctl(output, "", "ospf", 0);
conf_ctl(output, "", "ospf6", 0);
conf_ctl(output, "", "bgp", 0);
conf_ctl(output, "", "ifstate", 0);
conf_ctl(output, "", "ipsec", 0);
conf_ctl(output, "", "ike", 0);
conf_ctl(output, "", "rad", 0);
conf_ctl(output, "", "dvmrp", 0);
conf_ctl(output, "", "relay", 0);
conf_ctl(output, "", "sasync", 0);
conf_ctl(output, "", "dhcp", 0);
conf_ctl(output, "", "ntp", 0);
conf_ctl(output, "", "smtp", 0);
conf_ctl(output, "", "ldap", 0);
conf_ctl(output, "", "ftp-proxy", 0);
conf_ctl(output, "", "inet", 0);
conf_ctl(output, "", "sshd", 0);
offset = ftello(output);
conf_ctl(output, "", "crontab", 0);
if (offset != ftello(output)) /* we have custom crontab rules */
fprintf(output, "crontab install\n");
conf_rtables(output);
fprintf(output, "!\n");
conf_nameserver(output);
return(0);
}
void conf_rtables(FILE *output)
{
int i, rtableid;
StringList *rtables;
rtables = sl_init();
if (db_select_rtable_rtables(rtables) < 0) {
printf("%% database failure select rtables rtable\n");
sl_free(rtables, 1);
return;
}
for (i = 0; i < rtables->sl_cur; i++) {
const char *errmsg = NULL;
rtableid = strtonum(rtables->sl_str[i], 0, RT_TABLEID_MAX, &errmsg);
if (rtableid == 0)
continue;
if (errmsg) {
printf("%% Invalid route table (%d) %s: %s\n", i,
rtables->sl_str[i], errmsg);
continue;
}
conf_rtables_rtable(output, rtableid);
}
sl_free(rtables, 1);
}
void conf_rtables_rtable(FILE *output, int rtableid)
{
int i;
StringList *rtable_name, *rtable_daemons;
rtable_name = sl_init();
if (db_select_name_rtable(rtable_name, rtableid) < 0) {
printf("%% database failure select rtables name\n");
sl_free(rtable_name, 1);
return;
} else {
fprintf(output, "rtable %d %s\n", rtableid,
rtable_name->sl_str[0]);
}
sl_free(rtable_name, 1);
/*
* Routes must be printed before we attempt to start daemons,
* else rtables will not be created in the kernel (Unless an
* rdomain is created by specifing one on an interface prior
* to this point. An rdomain creates a new corresponding rtable)
*/
conf_arp(output, " arp ");
conf_ndp(output, " ndp ");
conf_routes(output, " route ", AF_INET, RTF_STATIC, rtableid);
conf_routes(output, " route ", AF_INET6, RTF_STATIC, rtableid);
rtable_daemons = sl_init();
if (db_select_flag_x_ctl_rtable(rtable_daemons, "ctl", rtableid) < 0) {
printf("%% database failure select ctl rtable\n");
sl_free(rtable_daemons, 1);
return;
} else {
for (i = 0; i < rtable_daemons->sl_cur; i++)
conf_ctl(output, " ", rtable_daemons->sl_str[i], rtableid);
}
sl_free(rtable_daemons, 1);
fprintf(output, "!\n");
}
/*
* Figure out whether this particular ctl accepts the standard "enable",
* etc. argument or calls them something else.
* This is done by mapping DB_X_ flags to ctl table entry names.
*
* XXX This currently ignores "disable" arguments; They will always be
* displayed as "disable" even when the table entry with the DB_X_DISABLE
* flag uses a different name...
*/
static void
get_argnames(int flag_x, char *name, int *defenable, char **fenablenm,
char **flocalnm, char **fothernm)
{
switch(flag_x) {
case DB_X_ENABLE_DEFAULT:
*defenable = 1;
/* FALLTHROUGH */
case DB_X_ENABLE:
*fenablenm = name;
break;
case DB_X_LOCAL:
*flocalnm = name;
break;
case DB_X_OTHER:
*fothernm = name;
break;
case DB_X_DISABLE:
case DB_X_REMOVE:
case DB_X_DISABLE_ALWAYS:
case 0:
break;
default:
printf("%% conf_ctl: flag_x %d unknown\n", flag_x);
}
}
void conf_ctl(FILE *output, char *delim, char *name, int rtableid)
{
FILE *conf;
struct daemons *x;
struct ctl *ctl;
char tmp_str[TMPSIZ], tmpfile[64];
char *fenablenm = NULL, *fothernm = NULL, *flocalnm = NULL;
int defenable = 0, pntdrules = 0, pntdflag = 0, dbflag;
x = (struct daemons *)genget(name, (char **)ctl_daemons,
sizeof(struct daemons));
if (x == NULL || Ambiguous(x)) {
printf("%% conf_ctl: %s: genget internal failure\n",
name);
return;
}
/* print rules if they exist */
snprintf(tmpfile, sizeof(tmpfile), "%s.%d", x->tmpfile, rtableid);
if ((conf = fopen(tmpfile, "r")) != NULL) {
fprintf(output, "%s%s rules\n", delim, name);
for (;;) {
if(fgets(tmp_str, TMPSIZ, conf) == NULL)
break;
if(tmp_str[0] == 0)
break;
fprintf(output, "%s %s", delim, tmp_str);
}
fclose(conf);
fprintf(output, "%s!\n", delim);
pntdrules = 1;
} else if (errno != ENOENT || (errno == ENOENT && verbose))
printf("%% conf_ctl: %s: %s\n", tmpfile, strerror(errno));
/* fill in argument names from table */
for (ctl = x->table; ctl != NULL && ctl->name != NULL; ctl++) {
get_argnames(ctl->flag_x, ctl->name, &defenable, &fenablenm,
&flocalnm, &fothernm);
}
/* print rules as currently enabled in running time database */
if ((dbflag = db_select_flag_x_dbflag_rtable("ctl", x->name, rtableid))
< 0) {
printf("%% database ctl select failure (%s, %d)\n", x->name,
rtableid);
return;
}
switch(dbflag) {
case DB_X_ENABLE:
fprintf(output, "%s%s %s\n", delim, x->name, fenablenm ?
fenablenm : "enable");
pntdflag = 1;
break;
case DB_X_LOCAL:
fprintf(output, "%s%s %s\n", delim, x->name, flocalnm ?
flocalnm : "local");
pntdflag = 1;
break;
case DB_X_OTHER:
fprintf(output, "%s%s %s\n", delim, x->name, fothernm ?
fothernm : "other");
pntdflag = 1;
break;
case DB_X_DISABLE_ALWAYS:
fprintf(output, "%s%s disable\n", delim, x->name);
pntdflag = 1;
/* FALLTHROUGH */
case DB_X_DISABLE:
defenable = 0;
break;
case DB_X_REMOVE:
case DB_X_ENABLE_DEFAULT:
case 0:
break;
default:
printf("%% conf_ctl: dbflag %d unknown\n", dbflag);
}
if (defenable) {
fprintf(output, "%s%s %s\n", delim, x->name, fenablenm ?
fenablenm : "enable");
pntdflag = 1;
}
if (pntdrules && x->doreload) {
fprintf(output, "%s%s reload\n", delim, x->name);
pntdflag = 1;
}
if (pntdflag)
fprintf(output, "%s!\n", delim);
}
int
dhcpleased_has_defaultroute(struct sockaddr_rtlabel *sr)
{
return (sr != NULL && strcmp(sr->sr_label, "dhcpleased") == 0);
}
/* Check whether IPv4 addresses on an interface are managed by dhcpleased. */
int
dhcpleased_controls_interface(char *ifname, int ifs)
{
int ifxflags;
if (!dhcpleased_is_running())
return 0;
ifxflags = get_ifxflags(ifname, ifs);
return ((ifxflags & IFXF_AUTOCONF4) != 0);
}
/*
* Check whether a specific IPv4 addresses on an interface is
* managed by dhcpleased.
*/
int
dhcpleased_has_address(char *ifname, const char *address,
const char *netmask)
{
char *argv[] = { DHCPLEASECTL, "-l", ifname, NULL };
int address_found = 0;
char ortext[128];
char outpath[PATH_MAX];
int fd = -1, nullfd = -1;
if (!dhcpleased_is_running())
return 0;
snprintf(ortext, sizeof(ortext), "\tinet %s netmask %s\n",
address, netmask);
nullfd = open("/dev/null", O_WRONLY | O_NOFOLLOW | O_CLOEXEC);
if (nullfd == -1) {
printf("%% open /dev/null: %s\n", strerror(errno));
return 0;
}
strlcpy(outpath, "/tmp/nsh-XXXXXX", sizeof(outpath));
fd = mkstemp(outpath);
if (fd == -1) {
printf("%% mkstemp: %s\n", strerror(errno));
close(nullfd);
return 0;
}
if (cmdargs_output(DHCPLEASECTL, argv, fd, nullfd) == 0 &&
scantext(outpath, ortext))
address_found = 1;
unlink(outpath);
close(fd);
close(nullfd);
return (address_found);
}
/* find string in file */
int scantext(char *fname, char *string)
{
FILE *file;
char line[128];
int found = 0;
if ((file = fopen(fname, "r")) == 0) {
printf("%% Unable to open %s: %s\n", fname, strerror(errno));
return(0);
}
for (;;) {
if (fgets(line, sizeof(line), file) == NULL)
break;
if (strcmp(line, string) == 0) {
found = 1;
break;
}
}
fclose(file);
return(found);
}
int islateif(char *ifname)
{
int i;
for (i = 0; i < nitems(latestartifs); i++)
if (isprefix(latestartifs[i].name, ifname))
return(1);
return(0);
}
void
conf_db_single(FILE *output, char *dbname, char *lookup, char *ifname)
{
StringList *dbreturn;
dbreturn = sl_init();
if (db_select_flag_x_ctl(dbreturn, dbname, ifname) < 0) {
printf("%% conf_db_single %s database select failed\n", dbname);
}
if (dbreturn->sl_cur > 0) {
if (lookup == NULL)
fprintf(output, " %s\n", dbname);
else if (strcmp(dbreturn->sl_str[0], lookup) != 0)
fprintf(output, " %s %s\n", dbname, dbreturn->sl_str[0]);
}
sl_free(dbreturn, 1);
}
void conf_interfaces(FILE *output, char *only, int exact_match)
{
int ifs, flags, ippntd, br;
char ifdescr[IFDESCRSIZE];
struct if_nameindex *ifn_list, *ifnp;
struct ifreq ifr, ifrdesc;
struct if_data if_data;
if ((ifn_list = if_nameindex()) == NULL) {
printf("%% conf_interfaces: if_nameindex failed\n");
return;
}
if ((ifs = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
printf("%% conf_interfaces socket: %s\n", strerror(errno));
if_freenameindex(ifn_list);
return;
}
for (ifnp = ifn_list; ifnp->if_name != NULL; ifnp++) {
if (only) {
/* only interfaces which match, or start with ... */
if (exact_match) {
if (strcmp(only, ifnp->if_name) != 0)
continue;
} else if (!isprefix(only, ifnp->if_name))
continue;
}
if (!only && islateif(ifnp->if_name))
/* interface prefixes to exclude on generic run */
continue;
strlcpy(ifr.ifr_name, ifnp->if_name, sizeof(ifr.ifr_name));
if (ioctl(ifs, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
printf("%% conf: SIOCGIFFLAGS: %s\n", strerror(errno));
continue;
}
flags = ifr.ifr_flags;
ifr.ifr_data = (caddr_t)&if_data;
if (ioctl(ifs, SIOCGIFDATA, (caddr_t)&ifr) < 0) {
printf("%% conf: SIOCGIFDATA: %s\n", strerror(errno));
continue;
}
/* The output order is important! */
/* set interface/bridge mode */
if (!(br = is_bridge(ifs, ifnp->if_name)))
br = 0;
fprintf(output, "%s %s\n", br ? "bridge" : "interface",
ifnp->if_name);
/*
* description, if available
* copied straight from ifconfig.c
*/
memset(&ifrdesc, 0, sizeof(ifrdesc));
strlcpy(ifrdesc.ifr_name, ifnp->if_name,
sizeof(ifrdesc.ifr_name));
ifrdesc.ifr_data = (caddr_t)&ifdescr;
if (ioctl(ifs, SIOCGIFDESCR, &ifrdesc) == 0 &&
strlen(ifrdesc.ifr_data))
fprintf(output, " description %s\n", ifrdesc.ifr_data);
conf_lladdr(output, ifnp->if_name);
conf_vnetid(output, ifs, ifnp->if_name);
conf_vnetflowid(output, ifs, ifnp->if_name);
conf_parent(output, ifs, ifnp->if_name);
conf_patch(output, ifs, ifnp->if_name);
conf_rdomain(output, ifs, ifnp->if_name);
conf_intrtlabel(output, ifs, ifnp->if_name);
conf_intgroup(output, ifs, ifnp->if_name);
conf_carp(output, ifs, ifnp->if_name);
conf_tunnel(output, ifs, ifnp->if_name);
conf_ifmetrics(output, ifs, if_data, ifnp->if_name);
ippntd = conf_ifaddr_dhcp(output, ifnp->if_name, ifs, flags);
if (br) {
conf_brcfg(output, ifs, ifn_list, ifnp->if_name);
} else {
char tmp[24];
conf_media_status(output, ifs, ifnp->if_name);
conf_keepalive(output, ifs, ifnp->if_name);
conf_pfsync(output, ifs, ifnp->if_name);
conf_trunk(output, ifs, ifnp->if_name);
conf_pflow(output, ifs, ifnp->if_name);
conf_pwe3(output, ifs, ifnp->if_name);
conf_ifxflags(output, ifs, ifnp->if_name);
if (conf_dhcrelay(ifnp->if_name, tmp, sizeof(tmp))
> 0)
fprintf(output, " dhcrelay %s\n", tmp);
conf_sppp(output, ifs, ifnp->if_name);
conf_pppoe(output, ifs, ifnp->if_name);
conf_wg(output, ifs, ifnp->if_name);
conf_umb(output, ifs, ifnp->if_name);
}
conf_ifflags(output, flags, ifnp->if_name, ippntd,
if_data.ifi_type);
}
close(ifs);
if_freenameindex(ifn_list);
}
void conf_lladdr(FILE *output, char *ifname)
{
StringList *hwdaddr;
char *lladdr;
/* We assume lladdr only useful if interface can get_hwdaddr */
if ((lladdr = get_hwdaddr(ifname)) == NULL)
return;
hwdaddr = sl_init();
if (db_select_flag_x_ctl(hwdaddr, "lladdr", ifname) < 0) {
printf("%% lladdr database select failed\n");
}
if (hwdaddr->sl_cur > 0 && (strcmp(hwdaddr->sl_str[0],
lladdr) != 0))
fprintf(output, " lladdr %s\n", lladdr);
sl_free(hwdaddr, 1);
}
int conf_ifaddr_dhcp(FILE *output, char *ifname, int ifs, int flags)
{
int ippntd;
/* find dhcpleased controlled interfaces */
if (dhcpleased_controls_interface(ifname, ifs)) {
fprintf(output, " autoconf4\n");
/* print all non-autoconf ipv6 addresses */
conf_ifaddrs(output, ifname, flags, AF_INET6);
ippntd = 1;
} else if (is_pppoe(ifname, ifs)) {
int ipaddrmode = pppoe_get_ipaddrmode(ifname);
if (ipaddrmode == NSH_PPPOE_IPADDR_IPCP) {
fprintf(output, " autoconf4\n");
ippntd = 1;
} else if (ipaddrmode == NSH_PPPOE_IPADDR_STATIC) {
fprintf(output, " no autoconf4\n");
/* print all non-autoconf addresses */
ippntd = conf_ifaddrs(output, ifname, flags, 0);
} else
ippntd = 0;
} else {
/* print all non-autoconf addresses */
ippntd = conf_ifaddrs(output, ifname, flags, 0);
}
return ippntd;
}
void conf_vnetid(FILE *output, int ifs, char *ifname)
{
int64_t vnetid;
if (((vnetid = get_vnetid(ifs, ifname)) != 0)) {
if (vnetid < 0)
fprintf(output, " vnetid any\n");
else
fprintf(output, " vnetid %lld\n", vnetid);
}
}
void conf_vnetflowid(FILE *output, int ifs, char *ifname)
{
struct ifreq ifr;
bzero(&ifr, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
if (ioctl(ifs, SIOCGVNETFLOWID, &ifr) == -1)
return;
if (ifr.ifr_vnetid)
fprintf(output, " vnetflowid\n");
}
void conf_patch(FILE *output, int ifs, char *ifname)
{
struct ifreq ifr;
char ifix_buf[IFNAMSIZ];
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
if (ioctl(ifs, SIOCGIFPAIR, &ifr) == 0 && ifr.ifr_index != 0 &&
if_indextoname(ifr.ifr_index, ifix_buf) != NULL)
fprintf(output, " patch %s\n", ifix_buf);
}
void conf_parent(FILE *output, int ifs, char *ifname)
{
struct if_parent ifp;
memset(&ifp, 0, sizeof(ifp));
strlcpy(ifp.ifp_name, ifname, IFNAMSIZ);
if (ioctl(ifs, SIOCGIFPARENT, (caddr_t)&ifp) == -1) {
if (errno != EADDRNOTAVAIL && errno != ENOTTY)
printf("%% SIOCGIFPARENT %s: %s\n", ifname,
strerror(errno));
return;
}
fprintf(output, " parent %s\n", ifp.ifp_parent);
}
void conf_ifflags(FILE *output, int flags, char *ifname, int ippntd, u_char ift)
{
if (flags & IFF_DEBUG)
fprintf(output, " debug\n");
if (flags & (IFF_LINK0|IFF_LINK1|IFF_LINK2)) {
fprintf(output, " link ");
if(flags & IFF_LINK0)
fprintf(output, "0 ");
if(flags & IFF_LINK1)
fprintf(output, "1 ");
if(flags & IFF_LINK2)
fprintf(output, "2");
fprintf(output, "\n");
}
/* wg(4) sets IFF_NOARP by default and this should not be changed. */
if (ift != IFT_WIREGUARD) {
if (flags & IFF_NOARP)
fprintf(output, " no arp\n");
if (flags & IFF_STATICARP)
fprintf(output, " staticarp\n");
}
if (isprefix("pppoe", ifname)) { /* XXX */
fprintf(output, " no shutdown\n");
} else {
/*
* address X/Y turns the interface up (just like 'no shutdown')
* ...but if we never had an ip address set and the interface
* is up, we need to save this state explicitly.
*/
if (!ippntd && (flags & IFF_UP))
fprintf(output, " no shutdown\n");
else if (!(flags & IFF_UP))
fprintf(output, " shutdown\n");
}
fprintf(output, "!\n");
}
int conf_dhcrelay(char *ifname, char *server, int serverlen)
{
StringList *data;
int alen;
data = sl_init();
if ((alen = db_select_flag_x_data_ctl_rtable(data, "dhcrelay", ifname, 0))
> 0) {
strlcpy(server, data->sl_str[0], serverlen);
alen = strlen(data->sl_str[0]);
}
sl_free(data, 1);
return(alen);
}
void conf_pflow(FILE *output, int ifs, char *ifname)
{
char sender[INET6_ADDRSTRLEN];
char receiver[INET6_ADDRSTRLEN];
char version[INET6_ADDRSTRLEN];
if (pflow_status(PFLOW_SENDER, ifs, ifname, sender)) {
return;
}
if (pflow_status(PFLOW_RECEIVER, ifs, ifname, receiver)) {
return;
}
if (pflow_status(PFLOW_VERSION, ifs, ifname, version)) {
return;
}
fprintf(output, " pflow sender %s receiver %s version %s\n",
sender, receiver, version);
}
void conf_ifxflags(FILE *output, int ifs, char *ifname)
{
struct ifreq ifr;
bzero(&ifr, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
if (ioctl(ifs, SIOCGIFXFLAGS, (caddr_t)&ifr) != -1) {
/* set mpls mode for eth interfaces */
if (ifr.ifr_flags & IFXF_MPLS)
fprintf(output, " mpls\n");
if (ifr.ifr_flags & IFXF_AUTOCONF6)
fprintf(output, " autoconf6\n");
if (ifr.ifr_flags & IFXF_AUTOCONF6TEMP)
fprintf(output, " temporary\n");
if (ifr.ifr_flags & IFXF_MONITOR)
fprintf(output, " monitor\n");
if (ifr.ifr_flags & IFXF_WOL)
fprintf(output, " wol\n");
}
}
void conf_rdomain(FILE *output, int ifs, char *ifname)
{
int rdomainid;
rdomainid = get_rdomain(ifs, ifname);
if (rdomainid > 0)
fprintf(output, " rdomain %d\n", rdomainid);
}
int get_rdomain(int ifs, char *ifname)
{
struct ifreq ifr;
bzero(&ifr, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
if (ioctl(ifs, SIOCGIFRDOMAIN, (caddr_t)&ifr) != -1)
return ifr.ifr_rdomainid;
return -1;
}
void conf_keepalive(FILE *output, int ifs, char *ifname)
{
struct ifkalivereq ikar;
bzero(&ikar, sizeof(ikar));
strlcpy(ikar.ikar_name, ifname, IFNAMSIZ);
if (ioctl(ifs, SIOCGETKALIVE, &ikar) == 0 &&
(ikar.ikar_timeo != 0 || ikar.ikar_cnt != 0))
fprintf(output, " keepalive %d %d\n",
ikar.ikar_timeo, ikar.ikar_cnt);
}
void conf_pwe3(FILE *output, int ifs, char *ifname)
{
int error, nei = 0, fat = 0, cw = 0;
struct shim_hdr shim;
struct ifreq ifr;
struct if_laddrreq req;
char hbuf[NI_MAXHOST];
struct sockaddr_mpls *smpls;
bzero(&ifr, sizeof(ifr));
bzero(&shim, sizeof(shim));
bzero(&req, sizeof(req));
ifr.ifr_data = (caddr_t)&shim;
strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
strlcpy(req.iflr_name, ifname, sizeof(req.iflr_name));
if (ioctl(ifs, SIOCGETLABEL, (caddr_t) &ifr) >= 0) {
fprintf(output, " mplslabel %u\n", shim.shim_label);
}
if (ioctl(ifs, SIOCGPWE3NEIGHBOR, (caddr_t)&req) >= 0) {
if (req.dstaddr.ss_family == AF_MPLS) {
smpls = (struct sockaddr_mpls *)&req.dstaddr;
error = getnameinfo((struct sockaddr *)&req.addr,
sizeof(req.addr), hbuf, sizeof(hbuf), NULL, 0,
NI_NUMERICHOST);
if (error != 0) {
printf("%% conf_pwe3: getnameinfo: %s\n",
gai_strerror(error));
} else {
nei = 1;
}
}
}