1930 lines
58 KiB
C
1930 lines
58 KiB
C
/* dnsmasq is Copyright (c) 2000-2024 Simon Kelley
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 dated June, 1991, or
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(at your option) version 3 dated 29 June, 2007.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define COPYRIGHT "Copyright (c) 2000-2024 Simon Kelley"
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/* We do defines that influence behavior of stdio.h, so complain
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if included too early. */
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#ifdef _STDIO_H
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# error "Header file stdio.h included too early!"
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#endif
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#ifndef NO_LARGEFILE
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/* Ensure we can use files >2GB (log files may grow this big) */
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# define _LARGEFILE_SOURCE 1
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# define _FILE_OFFSET_BITS 64
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#endif
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/* Get linux C library versions and define _GNU_SOURCE for kFreeBSD. */
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#if defined(__linux__) || defined(__GLIBC__)
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# ifndef __ANDROID__
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# define _GNU_SOURCE
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# endif
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# include <features.h>
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#endif
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/* Need these defined early */
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#if defined(__sun) || defined(__sun__)
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# define _XPG4_2
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# define __EXTENSIONS__
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#endif
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#if (defined(__GNUC__) && __GNUC__ >= 3) || defined(__clang__)
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#define ATTRIBUTE_NORETURN __attribute__ ((noreturn))
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#else
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#define ATTRIBUTE_NORETURN
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#endif
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/* get these before config.h for IPv6 stuff... */
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#include <sys/types.h>
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#include <sys/socket.h>
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#ifdef __APPLE__
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/* Define before netinet/in.h to select API. OSX Lion onwards. */
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# define __APPLE_USE_RFC_3542
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#endif
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#include <netinet/in.h>
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/* Also needed before config.h. */
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#include <getopt.h>
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#include "config.h"
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#include "ip6addr.h"
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#include "metrics.h"
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typedef unsigned char u8;
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typedef unsigned short u16;
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typedef unsigned int u32;
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typedef unsigned long long u64;
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#define countof(x) (long)(sizeof(x) / sizeof(x[0]))
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#include "dns-protocol.h"
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#include "dhcp-protocol.h"
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#ifdef HAVE_DHCP6
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#include "dhcp6-protocol.h"
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#include "radv-protocol.h"
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#endif
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#define gettext_noop(S) (S)
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#ifndef LOCALEDIR
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# define _(S) (S)
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#else
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# include <libintl.h>
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# include <locale.h>
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# define _(S) gettext(S)
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#endif
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#include <arpa/inet.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#if defined(HAVE_SOLARIS_NETWORK)
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# include <sys/sockio.h>
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#endif
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#include <poll.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <sys/un.h>
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#include <limits.h>
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#include <net/if.h>
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#if defined(HAVE_SOLARIS_NETWORK) && !defined(ifr_mtu)
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/* Some solaris net/if./h omit this. */
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# define ifr_mtu ifr_ifru.ifru_metric
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#endif
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#include <unistd.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <signal.h>
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#include <stddef.h>
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#include <time.h>
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#include <errno.h>
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#include <pwd.h>
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#include <grp.h>
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#include <stdarg.h>
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#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun__) || defined (__sun) || defined (__ANDROID__)
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# include <netinet/if_ether.h>
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#else
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# include <net/ethernet.h>
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#endif
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#include <net/if_arp.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#include <netinet/ip_icmp.h>
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#include <netinet/tcp.h>
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#include <sys/uio.h>
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#include <syslog.h>
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#include <dirent.h>
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#include <netdb.h>
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#ifndef HAVE_LINUX_NETWORK
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# include <net/if_dl.h>
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#endif
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#if defined(HAVE_LINUX_NETWORK)
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#include <linux/version.h>
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#include <linux/sockios.h>
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#include <linux/capability.h>
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/* There doesn't seem to be a universally-available
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userspace header for these. */
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extern int capset(cap_user_header_t header, cap_user_data_t data);
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extern int capget(cap_user_header_t header, cap_user_data_t data);
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#define LINUX_CAPABILITY_VERSION_1 0x19980330
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#define LINUX_CAPABILITY_VERSION_2 0x20071026
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#define LINUX_CAPABILITY_VERSION_3 0x20080522
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#include <sys/prctl.h>
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#elif defined(HAVE_SOLARIS_NETWORK)
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#include <priv.h>
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#endif
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/* Backwards compat with 2.83 */
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#if defined(HAVE_NETTLEHASH)
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# define HAVE_CRYPTOHASH
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#endif
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#if defined(HAVE_DNSSEC) || defined(HAVE_CRYPTOHASH)
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# include <nettle/nettle-meta.h>
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#endif
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/* daemon is function in the C library.... */
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#define daemon dnsmasq_daemon
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#define ADDRSTRLEN INET6_ADDRSTRLEN
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/* Async event queue */
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struct event_desc {
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int event, data, msg_sz;
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};
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#define EVENT_RELOAD 1
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#define EVENT_DUMP 2
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#define EVENT_ALARM 3
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#define EVENT_TERM 4
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#define EVENT_CHILD 5
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#define EVENT_REOPEN 6
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#define EVENT_EXITED 7
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#define EVENT_KILLED 8
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#define EVENT_EXEC_ERR 9
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#define EVENT_PIPE_ERR 10
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#define EVENT_USER_ERR 11
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#define EVENT_CAP_ERR 12
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#define EVENT_PIDFILE 13
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#define EVENT_HUSER_ERR 14
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#define EVENT_GROUP_ERR 15
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#define EVENT_DIE 16
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#define EVENT_LOG_ERR 17
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#define EVENT_FORK_ERR 18
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#define EVENT_LUA_ERR 19
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#define EVENT_TFTP_ERR 20
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#define EVENT_INIT 21
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#define EVENT_NEWADDR 22
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#define EVENT_NEWROUTE 23
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#define EVENT_TIME_ERR 24
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#define EVENT_SCRIPT_LOG 25
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#define EVENT_TIME 26
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/* Exit codes. */
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#define EC_GOOD 0
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#define EC_BADCONF 1
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#define EC_BADNET 2
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#define EC_FILE 3
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#define EC_NOMEM 4
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#define EC_MISC 5
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#define EC_INIT_OFFSET 10
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#define OPT_BOGUSPRIV 0
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#define OPT_FILTER 1
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#define OPT_LOG 2
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#define OPT_SELFMX 3
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#define OPT_NO_HOSTS 4
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#define OPT_NO_POLL 5
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#define OPT_DEBUG 6
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#define OPT_ORDER 7
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#define OPT_NO_RESOLV 8
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#define OPT_EXPAND 9
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#define OPT_LOCALMX 10
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#define OPT_NO_NEG 11
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#define OPT_NODOTS_LOCAL 12
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#define OPT_NOWILD 13
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#define OPT_ETHERS 14
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#define OPT_RESOLV_DOMAIN 15
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#define OPT_NO_FORK 16
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#define OPT_AUTHORITATIVE 17
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#define OPT_LOCALISE 18
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#define OPT_DBUS 19
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#define OPT_DHCP_FQDN 20
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#define OPT_NO_PING 21
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#define OPT_LEASE_RO 22
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#define OPT_ALL_SERVERS 23
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#define OPT_RELOAD 24
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#define OPT_LOCAL_REBIND 25
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#define OPT_TFTP_SECURE 26
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#define OPT_TFTP_NOBLOCK 27
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#define OPT_LOG_OPTS 28
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#define OPT_TFTP_APREF_IP 29
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#define OPT_NO_OVERRIDE 30
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#define OPT_NO_REBIND 31
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#define OPT_ADD_MAC 32
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#define OPT_DNSSEC_PROXY 33
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#define OPT_CONSEC_ADDR 34
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#define OPT_CONNTRACK 35
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#define OPT_FQDN_UPDATE 36
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#define OPT_RA 37
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#define OPT_TFTP_LC 38
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#define OPT_CLEVERBIND 39
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#define OPT_TFTP 40
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#define OPT_CLIENT_SUBNET 41
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#define OPT_QUIET_DHCP 42
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#define OPT_QUIET_DHCP6 43
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#define OPT_QUIET_RA 44
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#define OPT_DNSSEC_VALID 45
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#define OPT_DNSSEC_TIME 46
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#define OPT_DNSSEC_DEBUG 47
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#define OPT_DNSSEC_IGN_NS 48
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#define OPT_LOCAL_SERVICE 49
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#define OPT_LOOP_DETECT 50
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#define OPT_EXTRALOG 51
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#define OPT_TFTP_NO_FAIL 52
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#define OPT_SCRIPT_ARP 53
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#define OPT_MAC_B64 54
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#define OPT_MAC_HEX 55
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#define OPT_TFTP_APREF_MAC 56
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#define OPT_RAPID_COMMIT 57
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#define OPT_UBUS 58
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#define OPT_IGNORE_CLID 59
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#define OPT_SINGLE_PORT 60
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#define OPT_LEASE_RENEW 61
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#define OPT_LOG_DEBUG 62
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#define OPT_UMBRELLA 63
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#define OPT_UMBRELLA_DEVID 64
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#define OPT_CMARK_ALST_EN 65
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#define OPT_QUIET_TFTP 66
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#define OPT_STRIP_ECS 67
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#define OPT_STRIP_MAC 68
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#define OPT_NORR 69
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#define OPT_NO_IDENT 70
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#define OPT_CACHE_RR 71
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#define OPT_LOCALHOST_SERVICE 72
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#define OPT_LAST 73
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#define OPTION_BITS (sizeof(unsigned int)*8)
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#define OPTION_SIZE ( (OPT_LAST/OPTION_BITS)+((OPT_LAST%OPTION_BITS)!=0) )
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#define option_var(x) (daemon->options[(x) / OPTION_BITS])
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#define option_val(x) ((1u) << ((x) % OPTION_BITS))
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#define option_bool(x) (option_var(x) & option_val(x))
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/* extra flags for my_syslog, we use facilities since they are known
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not to occupy the same bits as priorities, no matter how syslog.h is set up.
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MS_DEBUG messages are suppressed unless --log-debug is set. */
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#define MS_TFTP LOG_USER
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#define MS_DHCP LOG_DAEMON
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#define MS_SCRIPT LOG_MAIL
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#define MS_DEBUG LOG_NEWS
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/* Note that this is used widely as a container for IPv4/IPv6 addresses,
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so for that reason, was well as to avoid wasting memory in almost every
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cache entry, the other variants should not be larger than
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sizeof(struct in6_addr) - 16 bytes.
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*/
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union all_addr {
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struct in_addr addr4;
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struct in6_addr addr6;
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struct {
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union {
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struct crec *cache;
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char *name;
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} target;
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unsigned int uid;
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int is_name_ptr; /* disciminates target union */
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} cname;
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struct {
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struct blockdata *keydata;
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unsigned short keylen, flags, keytag;
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unsigned char algo;
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} key;
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struct {
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struct blockdata *keydata;
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unsigned short keylen, keytag;
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unsigned char algo;
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unsigned char digest;
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} ds;
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/* for log_query */
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struct {
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unsigned short keytag, algo, digest, rcode;
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int ede;
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} log;
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/* for arbitrary RR record stored in block */
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struct {
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unsigned short rrtype;
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unsigned short datalen;
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struct blockdata *rrdata;
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} rrblock;
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/* for arbitrary RR record small enough to go in addr.
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NOTE: rrblock and rrdata are discriminated by the F_KEYTAG bit
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in the cache flags. */
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struct datablock {
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unsigned short rrtype;
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unsigned char datalen; /* also length of SOA in negative records. */
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char data[];
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} rrdata;
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};
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#define RR_IMDATALEN (sizeof(union all_addr) - offsetof(struct datablock, data))
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struct bogus_addr {
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int is6, prefix;
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union all_addr addr;
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struct bogus_addr *next;
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};
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/* dns doctor param */
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struct doctor {
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struct in_addr in, end, out, mask;
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struct doctor *next;
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};
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struct mx_srv_record {
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char *name, *target;
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int issrv, srvport, priority, weight;
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unsigned int offset;
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struct mx_srv_record *next;
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};
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struct naptr {
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char *name, *replace, *regexp, *services, *flags;
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unsigned int order, pref;
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struct naptr *next;
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};
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#ifndef NO_ID
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#define TXT_STAT_CACHESIZE 1
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#define TXT_STAT_INSERTS 2
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#define TXT_STAT_EVICTIONS 3
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#define TXT_STAT_MISSES 4
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#define TXT_STAT_HITS 5
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#define TXT_STAT_AUTH 6
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#define TXT_STAT_SERVERS 7
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/* Pi-hole modification */
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#define TXT_API_DOMAIN 124
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#define TXT_API_LOCAL 125
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/************************/
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#endif
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struct txt_record {
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char *name;
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unsigned char *txt;
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unsigned short class, len;
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int stat;
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struct txt_record *next;
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};
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struct ptr_record {
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char *name, *ptr;
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struct ptr_record *next;
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};
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struct cname {
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int ttl, flag;
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char *alias, *target;
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struct cname *next, *targetp;
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};
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struct ds_config {
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char *name, *digest;
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int digestlen, class, algo, keytag, digest_type;
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struct ds_config *next;
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};
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#define ADDRLIST_LITERAL 1
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#define ADDRLIST_IPV6 2
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#define ADDRLIST_REVONLY 4
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#define ADDRLIST_PREFIX 8
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#define ADDRLIST_WILDCARD 16
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#define ADDRLIST_DECLINED 32
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struct addrlist {
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union all_addr addr;
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int flags, prefixlen;
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time_t decline_time;
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struct addrlist *next;
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};
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#define AUTH6 1
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#define AUTH4 2
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struct auth_zone {
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char *domain;
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struct auth_name_list {
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char *name;
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int flags;
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struct auth_name_list *next;
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} *interface_names;
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struct addrlist *subnet;
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struct addrlist *exclude;
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struct auth_zone *next;
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};
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#define HR_6 1
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#define HR_4 2
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struct host_record {
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int ttl, flags;
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struct name_list {
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char *name;
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struct name_list *next;
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} *names;
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struct in_addr addr;
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struct in6_addr addr6;
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struct host_record *next;
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};
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#define IN4 1
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#define IN6 2
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#define INP4 4
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#define INP6 8
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struct interface_name {
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char *name; /* domain name */
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char *intr; /* interface name */
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int flags;
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struct in_addr proto4;
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struct in6_addr proto6;
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struct addrlist *addr;
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struct interface_name *next;
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};
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union bigname {
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char name[MAXDNAME];
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union bigname *next; /* freelist */
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};
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struct blockdata {
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struct blockdata *next;
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unsigned char key[KEYBLOCK_LEN];
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};
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struct crec {
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struct crec *next, *prev, *hash_next;
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union all_addr addr;
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time_t ttd; /* time to die */
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/* used as class if DNSKEY/DS, index to source for F_HOSTS */
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unsigned int uid;
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unsigned int flags;
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union {
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char sname[SMALLDNAME];
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union bigname *bname;
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char *namep;
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} name;
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};
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#define SIZEOF_BARE_CREC (sizeof(struct crec) - SMALLDNAME)
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#define SIZEOF_POINTER_CREC (sizeof(struct crec) + sizeof(char *) - SMALLDNAME)
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#define F_IMMORTAL (1u<<0)
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#define F_NAMEP (1u<<1)
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#define F_REVERSE (1u<<2)
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#define F_FORWARD (1u<<3)
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#define F_DHCP (1u<<4)
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#define F_NEG (1u<<5)
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#define F_HOSTS (1u<<6)
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#define F_IPV4 (1u<<7)
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#define F_IPV6 (1u<<8)
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#define F_BIGNAME (1u<<9)
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#define F_NXDOMAIN (1u<<10)
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#define F_CNAME (1u<<11)
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#define F_DNSKEY (1u<<12)
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#define F_CONFIG (1u<<13)
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#define F_DS (1u<<14)
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#define F_DNSSECOK (1u<<15)
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#define F_UPSTREAM (1u<<16)
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#define F_RRNAME (1u<<17)
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#define F_SERVER (1u<<18)
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#define F_QUERY (1u<<19)
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#define F_NOERR (1u<<20)
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#define F_AUTH (1u<<21)
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#define F_DNSSEC (1u<<22)
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#define F_KEYTAG (1u<<23)
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#define F_SECSTAT (1u<<24)
|
|
#define F_NO_RR (1u<<25)
|
|
#define F_IPSET (1u<<26)
|
|
#define F_NOEXTRA (1u<<27)
|
|
#define F_DOMAINSRV (1u<<28)
|
|
#define F_RCODE (1u<<29)
|
|
#define F_RR (1u<<30)
|
|
#define F_STALE (1u<<31)
|
|
|
|
#define UID_NONE 0
|
|
/* Values of uid in crecs with F_CONFIG bit set. */
|
|
#define SRC_CONFIG 1
|
|
#define SRC_HOSTS 2
|
|
#define SRC_AH 3
|
|
|
|
/* struct sockaddr is not large enough to hold any address,
|
|
and specifically not big enough to hold an IPv6 address.
|
|
Blech. Roll our own. */
|
|
union mysockaddr {
|
|
struct sockaddr sa;
|
|
struct sockaddr_in in;
|
|
struct sockaddr_in6 in6;
|
|
};
|
|
|
|
/* bits in flag param to IPv6 callbacks from iface_enumerate() */
|
|
#define IFACE_TENTATIVE 1
|
|
#define IFACE_DEPRECATED 2
|
|
#define IFACE_PERMANENT 4
|
|
|
|
|
|
/* The actual values here matter, since we sort on them to get records in the order
|
|
IPv6 addr, IPv4 addr, all zero return, resolvconf servers, upstream server, no-data return */
|
|
#define SERV_LITERAL_ADDRESS 1 /* addr is the answer, or NoDATA is the answer, depending on the next four flags */
|
|
#define SERV_USE_RESOLV 2 /* forward this domain in the normal way */
|
|
#define SERV_ALL_ZEROS 4 /* return all zeros for A and AAAA */
|
|
#define SERV_4ADDR 8 /* addr is IPv4 */
|
|
#define SERV_6ADDR 16 /* addr is IPv6 */
|
|
#define SERV_HAS_SOURCE 32 /* source address defined */
|
|
#define SERV_FOR_NODOTS 64 /* server for names with no domain part only */
|
|
#define SERV_WARNED_RECURSIVE 128 /* avoid warning spam */
|
|
#define SERV_FROM_DBUS 256 /* 1 if source is DBus */
|
|
#define SERV_MARK 512 /* for mark-and-delete and log code */
|
|
#define SERV_WILDCARD 1024 /* domain has leading '*' */
|
|
#define SERV_FROM_RESOLV 2048 /* 1 for servers from resolv, 0 for command line. */
|
|
#define SERV_FROM_FILE 4096 /* read from --servers-file */
|
|
#define SERV_LOOP 8192 /* server causes forwarding loop */
|
|
#define SERV_DO_DNSSEC 16384 /* Validate DNSSEC when using this server */
|
|
#define SERV_GOT_TCP 32768 /* Got some data from the TCP connection */
|
|
|
|
struct serverfd {
|
|
int fd;
|
|
union mysockaddr source_addr;
|
|
char interface[IF_NAMESIZE+1];
|
|
unsigned int ifindex, used, preallocated;
|
|
struct serverfd *next;
|
|
};
|
|
|
|
struct randfd {
|
|
struct server *serv;
|
|
int fd;
|
|
unsigned short refcount; /* refcount == 0xffff means overflow record. */
|
|
};
|
|
|
|
struct randfd_list {
|
|
struct randfd *rfd;
|
|
struct randfd_list *next;
|
|
};
|
|
|
|
|
|
struct server {
|
|
u16 flags, domain_len;
|
|
char *domain;
|
|
struct server *next;
|
|
int serial, arrayposn;
|
|
int last_server;
|
|
union mysockaddr addr, source_addr;
|
|
char interface[IF_NAMESIZE+1];
|
|
unsigned int ifindex; /* corresponding to interface, above */
|
|
struct serverfd *sfd;
|
|
int tcpfd, edns_pktsz;
|
|
time_t pktsz_reduced;
|
|
unsigned int queries, failed_queries, nxdomain_replies, retrys;
|
|
unsigned int query_latency, mma_latency;
|
|
time_t forwardtime;
|
|
int forwardcount;
|
|
#ifdef HAVE_LOOP
|
|
u32 uid;
|
|
#endif
|
|
};
|
|
|
|
/* First four fields must match struct server in next three definitions.. */
|
|
struct serv_addr4 {
|
|
u16 flags, domain_len;
|
|
char *domain;
|
|
struct server *next;
|
|
struct in_addr addr;
|
|
};
|
|
|
|
struct serv_addr6 {
|
|
u16 flags, domain_len;
|
|
char *domain;
|
|
struct server *next;
|
|
struct in6_addr addr;
|
|
};
|
|
|
|
struct serv_local {
|
|
u16 flags, domain_len;
|
|
char *domain;
|
|
struct server *next;
|
|
};
|
|
|
|
struct rebind_domain {
|
|
char *domain;
|
|
struct rebind_domain *next;
|
|
};
|
|
|
|
struct ipsets {
|
|
char **sets;
|
|
char *domain;
|
|
struct ipsets *next;
|
|
};
|
|
|
|
struct allowlist {
|
|
u32 mark, mask;
|
|
char **patterns;
|
|
struct allowlist *next;
|
|
};
|
|
|
|
struct irec {
|
|
union mysockaddr addr;
|
|
struct in_addr netmask; /* only valid for IPv4 */
|
|
int tftp_ok, dhcp4_ok, dhcp6_ok, mtu, done, warned, dad;
|
|
int dns_auth, index, multicast_done, found, label;
|
|
char *name;
|
|
/* Pi-hole modification */
|
|
char *slabel;
|
|
/************************/
|
|
struct irec *next;
|
|
};
|
|
|
|
struct listener {
|
|
int fd, tcpfd, tftpfd, used;
|
|
union mysockaddr addr;
|
|
struct irec *iface; /* only sometimes valid for non-wildcard */
|
|
struct listener *next;
|
|
};
|
|
|
|
/* interface and address parms from command line. */
|
|
struct iname {
|
|
char *name;
|
|
union mysockaddr addr;
|
|
int flags;
|
|
struct iname *next;
|
|
};
|
|
|
|
#define INAME_USED 1
|
|
#define INAME_4 2
|
|
#define INAME_6 4
|
|
|
|
struct rrlist {
|
|
unsigned short rr;
|
|
struct rrlist *next;
|
|
};
|
|
|
|
/* subnet parameters from command line */
|
|
struct mysubnet {
|
|
union mysockaddr addr;
|
|
int addr_used;
|
|
int mask;
|
|
};
|
|
|
|
/* resolv-file parms from command-line */
|
|
struct resolvc {
|
|
struct resolvc *next;
|
|
int is_default, logged;
|
|
time_t mtime;
|
|
ino_t ino;
|
|
char *name;
|
|
#ifdef HAVE_INOTIFY
|
|
int wd; /* inotify watch descriptor */
|
|
char *file; /* pointer to file part if path */
|
|
#endif
|
|
};
|
|
|
|
/* adn-hosts parms from command-line (also dhcp-hostsfile and dhcp-optsfile and dhcp-hostsdir*/
|
|
#define AH_DIR 1
|
|
#define AH_INACTIVE 2
|
|
#define AH_WD_DONE 4
|
|
#define AH_HOSTS 8
|
|
#define AH_DHCP_HST 16
|
|
#define AH_DHCP_OPT 32
|
|
struct hostsfile {
|
|
struct hostsfile *next;
|
|
int flags;
|
|
char *fname;
|
|
unsigned int index; /* matches to cache entries for logging */
|
|
};
|
|
|
|
struct dyndir {
|
|
struct dyndir *next;
|
|
struct hostsfile *files;
|
|
int flags;
|
|
char *dname;
|
|
#ifdef HAVE_INOTIFY
|
|
int wd; /* inotify watch descriptor */
|
|
#endif
|
|
};
|
|
|
|
/* packet-dump flags */
|
|
#define DUMP_QUERY 0x0001
|
|
#define DUMP_REPLY 0x0002
|
|
#define DUMP_UP_QUERY 0x0004
|
|
#define DUMP_UP_REPLY 0x0008
|
|
#define DUMP_SEC_QUERY 0x0010
|
|
#define DUMP_SEC_REPLY 0x0020
|
|
#define DUMP_BOGUS 0x0040
|
|
#define DUMP_SEC_BOGUS 0x0080
|
|
#define DUMP_DHCP 0x1000
|
|
#define DUMP_DHCPV6 0x2000
|
|
#define DUMP_RA 0x4000
|
|
#define DUMP_TFTP 0x8000
|
|
|
|
/* DNSSEC status values. */
|
|
#define STAT_SECURE 0x10000
|
|
#define STAT_INSECURE 0x20000
|
|
#define STAT_BOGUS 0x30000
|
|
#define STAT_NEED_DS 0x40000
|
|
#define STAT_NEED_KEY 0x50000
|
|
#define STAT_TRUNCATED 0x60000
|
|
#define STAT_SECURE_WILDCARD 0x70000
|
|
#define STAT_OK 0x80000
|
|
#define STAT_ABANDONED 0x90000
|
|
|
|
#define DNSSEC_FAIL_NYV 0x0001 /* key not yet valid */
|
|
#define DNSSEC_FAIL_EXP 0x0002 /* key expired */
|
|
#define DNSSEC_FAIL_INDET 0x0004 /* indetermined */
|
|
#define DNSSEC_FAIL_NOKEYSUP 0x0008 /* no supported key algo. */
|
|
#define DNSSEC_FAIL_NOSIG 0x0010 /* No RRsigs */
|
|
#define DNSSEC_FAIL_NOZONE 0x0020 /* No Zone bit set */
|
|
#define DNSSEC_FAIL_NONSEC 0x0040 /* No NSEC */
|
|
#define DNSSEC_FAIL_NODSSUP 0x0080 /* no supported DS algo. */
|
|
#define DNSSEC_FAIL_NOKEY 0x0100 /* no DNSKEY */
|
|
|
|
#define STAT_ISEQUAL(a, b) (((a) & 0xffff0000) == (b))
|
|
|
|
#define FREC_NOREBIND 1
|
|
#define FREC_CHECKING_DISABLED 2
|
|
#define FREC_NO_CACHE 4
|
|
#define FREC_DNSKEY_QUERY 8
|
|
#define FREC_DS_QUERY 16
|
|
#define FREC_AD_QUESTION 32
|
|
#define FREC_DO_QUESTION 64
|
|
#define FREC_ADDED_PHEADER 128
|
|
#define FREC_TEST_PKTSZ 256
|
|
#define FREC_HAS_EXTRADATA 512
|
|
#define FREC_HAS_PHEADER 1024
|
|
|
|
#define HASH_SIZE 32 /* SHA-256 digest size */
|
|
|
|
struct frec {
|
|
struct frec_src {
|
|
union mysockaddr source;
|
|
union all_addr dest;
|
|
unsigned int iface, log_id;
|
|
int fd;
|
|
unsigned short orig_id;
|
|
struct frec_src *next;
|
|
} frec_src;
|
|
struct server *sentto; /* NULL means free */
|
|
struct randfd_list *rfds;
|
|
unsigned short new_id;
|
|
int forwardall, flags;
|
|
time_t time;
|
|
u32 forward_timestamp;
|
|
int forward_delay;
|
|
unsigned char *hash[HASH_SIZE];
|
|
struct blockdata *stash; /* Saved reply, whilst we validate */
|
|
size_t stash_len;
|
|
#ifdef HAVE_DNSSEC
|
|
int class, work_counter;
|
|
struct frec *dependent; /* Query awaiting internally-generated DNSKEY or DS query */
|
|
struct frec *next_dependent; /* list of above. */
|
|
struct frec *blocking_query; /* Query which is blocking us. */
|
|
#endif
|
|
struct frec *next;
|
|
};
|
|
|
|
/* flags in top of length field for DHCP-option tables */
|
|
#define OT_ADDR_LIST 0x8000
|
|
#define OT_RFC1035_NAME 0x4000
|
|
#define OT_INTERNAL 0x2000
|
|
#define OT_NAME 0x1000
|
|
#define OT_CSTRING 0x0800
|
|
#define OT_DEC 0x0400
|
|
#define OT_TIME 0x0200
|
|
|
|
/* actions in the daemon->helper RPC */
|
|
#define ACTION_DEL 1
|
|
#define ACTION_OLD_HOSTNAME 2
|
|
#define ACTION_OLD 3
|
|
#define ACTION_ADD 4
|
|
#define ACTION_TFTP 5
|
|
#define ACTION_ARP 6
|
|
#define ACTION_ARP_DEL 7
|
|
#define ACTION_RELAY_SNOOP 8
|
|
|
|
#define LEASE_NEW 1 /* newly created */
|
|
#define LEASE_CHANGED 2 /* modified */
|
|
#define LEASE_AUX_CHANGED 4 /* CLID or expiry changed */
|
|
#define LEASE_AUTH_NAME 8 /* hostname came from config, not from client */
|
|
#define LEASE_USED 16 /* used this DHCPv6 transaction */
|
|
#define LEASE_NA 32 /* IPv6 no-temporary lease */
|
|
#define LEASE_TA 64 /* IPv6 temporary lease */
|
|
#define LEASE_HAVE_HWADDR 128 /* Have set hwaddress */
|
|
#define LEASE_EXP_CHANGED 256 /* Lease expiry time changed */
|
|
|
|
struct dhcp_lease {
|
|
int clid_len; /* length of client identifier */
|
|
unsigned char *clid; /* clientid */
|
|
char *hostname, *fqdn; /* name from client-hostname option or config */
|
|
char *old_hostname; /* hostname before it moved to another lease */
|
|
int flags;
|
|
time_t expires; /* lease expiry */
|
|
#ifdef HAVE_BROKEN_RTC
|
|
unsigned int length;
|
|
#endif
|
|
int hwaddr_len, hwaddr_type;
|
|
unsigned char hwaddr[DHCP_CHADDR_MAX];
|
|
struct in_addr addr, override, giaddr;
|
|
unsigned char *extradata;
|
|
unsigned int extradata_len, extradata_size;
|
|
int last_interface;
|
|
int new_interface; /* save possible originated interface */
|
|
int new_prefixlen; /* and its prefix length */
|
|
#ifdef HAVE_DHCP6
|
|
struct in6_addr addr6;
|
|
unsigned int iaid;
|
|
struct slaac_address {
|
|
struct in6_addr addr;
|
|
time_t ping_time;
|
|
int backoff; /* zero -> confirmed */
|
|
struct slaac_address *next;
|
|
} *slaac_address;
|
|
int vendorclass_count;
|
|
#endif
|
|
struct dhcp_lease *next;
|
|
};
|
|
|
|
struct dhcp_netid {
|
|
char *net;
|
|
struct dhcp_netid *next;
|
|
};
|
|
|
|
struct dhcp_netid_list {
|
|
struct dhcp_netid *list;
|
|
struct dhcp_netid_list *next;
|
|
};
|
|
|
|
struct tag_if {
|
|
struct dhcp_netid_list *set;
|
|
struct dhcp_netid *tag;
|
|
struct tag_if *next;
|
|
};
|
|
|
|
struct delay_config {
|
|
int delay;
|
|
struct dhcp_netid *netid;
|
|
struct delay_config *next;
|
|
};
|
|
|
|
struct hwaddr_config {
|
|
int hwaddr_len, hwaddr_type;
|
|
unsigned char hwaddr[DHCP_CHADDR_MAX];
|
|
unsigned int wildcard_mask;
|
|
struct hwaddr_config *next;
|
|
};
|
|
|
|
struct dhcp_config {
|
|
unsigned int flags;
|
|
int clid_len; /* length of client identifier */
|
|
unsigned char *clid; /* clientid */
|
|
char *hostname, *domain;
|
|
struct dhcp_netid_list *netid;
|
|
struct dhcp_netid *filter;
|
|
#ifdef HAVE_DHCP6
|
|
struct addrlist *addr6;
|
|
#endif
|
|
struct in_addr addr;
|
|
time_t decline_time;
|
|
unsigned int lease_time;
|
|
struct hwaddr_config *hwaddr;
|
|
struct dhcp_config *next;
|
|
};
|
|
|
|
#define have_config(config, mask) ((config) && ((config)->flags & (mask)))
|
|
|
|
#define CONFIG_DISABLE 1
|
|
#define CONFIG_CLID 2
|
|
#define CONFIG_TIME 8
|
|
#define CONFIG_NAME 16
|
|
#define CONFIG_ADDR 32
|
|
#define CONFIG_NOCLID 128
|
|
#define CONFIG_FROM_ETHERS 256 /* entry created by /etc/ethers */
|
|
#define CONFIG_ADDR_HOSTS 512 /* address added by from /etc/hosts */
|
|
#define CONFIG_DECLINED 1024 /* address declined by client */
|
|
#define CONFIG_BANK 2048 /* from dhcp hosts file */
|
|
#define CONFIG_ADDR6 4096
|
|
#define CONFIG_ADDR6_HOSTS 16384 /* address added by from /etc/hosts */
|
|
|
|
struct dhcp_opt {
|
|
int opt, len, flags;
|
|
union {
|
|
int encap;
|
|
unsigned int wildcard_mask;
|
|
unsigned char *vendor_class;
|
|
} u;
|
|
unsigned char *val;
|
|
struct dhcp_netid *netid;
|
|
struct dhcp_opt *next;
|
|
};
|
|
|
|
#define DHOPT_ADDR 1
|
|
#define DHOPT_STRING 2
|
|
#define DHOPT_ENCAPSULATE 4
|
|
#define DHOPT_ENCAP_MATCH 8
|
|
#define DHOPT_FORCE 16
|
|
#define DHOPT_BANK 32
|
|
#define DHOPT_ENCAP_DONE 64
|
|
#define DHOPT_MATCH 128
|
|
#define DHOPT_VENDOR 256
|
|
#define DHOPT_HEX 512
|
|
#define DHOPT_VENDOR_MATCH 1024
|
|
#define DHOPT_RFC3925 2048
|
|
#define DHOPT_TAGOK 4096
|
|
#define DHOPT_ADDR6 8192
|
|
#define DHOPT_VENDOR_PXE 16384
|
|
|
|
struct dhcp_boot {
|
|
char *file, *sname, *tftp_sname;
|
|
struct in_addr next_server;
|
|
struct dhcp_netid *netid;
|
|
struct dhcp_boot *next;
|
|
};
|
|
|
|
struct dhcp_match_name {
|
|
char *name;
|
|
int wildcard;
|
|
struct dhcp_netid *netid;
|
|
struct dhcp_match_name *next;
|
|
};
|
|
|
|
struct pxe_service {
|
|
unsigned short CSA, type;
|
|
char *menu, *basename, *sname;
|
|
struct in_addr server;
|
|
struct dhcp_netid *netid;
|
|
struct pxe_service *next;
|
|
};
|
|
|
|
#define DHCP_PXE_DEF_VENDOR "PXEClient"
|
|
|
|
#define MATCH_VENDOR 1
|
|
#define MATCH_USER 2
|
|
#define MATCH_CIRCUIT 3
|
|
#define MATCH_REMOTE 4
|
|
#define MATCH_SUBSCRIBER 5
|
|
|
|
/* vendorclass, userclass, remote-id or circuit-id */
|
|
struct dhcp_vendor {
|
|
int len, match_type;
|
|
unsigned int enterprise;
|
|
char *data;
|
|
struct dhcp_netid netid;
|
|
struct dhcp_vendor *next;
|
|
};
|
|
|
|
struct dhcp_pxe_vendor {
|
|
char *data;
|
|
struct dhcp_pxe_vendor *next;
|
|
};
|
|
|
|
struct dhcp_mac {
|
|
unsigned int mask;
|
|
int hwaddr_len, hwaddr_type;
|
|
unsigned char hwaddr[DHCP_CHADDR_MAX];
|
|
struct dhcp_netid netid;
|
|
struct dhcp_mac *next;
|
|
};
|
|
|
|
struct dhcp_bridge {
|
|
char iface[IF_NAMESIZE];
|
|
struct dhcp_bridge *alias, *next;
|
|
};
|
|
|
|
struct cond_domain {
|
|
char *domain, *prefix; /* prefix is text-prefix on domain name */
|
|
char *interface; /* These two set when domain comes from interface. */
|
|
struct addrlist *al;
|
|
struct in_addr start, end;
|
|
struct in6_addr start6, end6;
|
|
int is6, indexed, prefixlen;
|
|
struct cond_domain *next;
|
|
};
|
|
|
|
struct ra_interface {
|
|
char *name;
|
|
char *mtu_name;
|
|
int interval, lifetime, prio, mtu;
|
|
struct ra_interface *next;
|
|
};
|
|
|
|
struct dhcp_context {
|
|
unsigned int lease_time, addr_epoch;
|
|
struct in_addr netmask, broadcast;
|
|
struct in_addr local, router;
|
|
struct in_addr start, end; /* range of available addresses */
|
|
#ifdef HAVE_DHCP6
|
|
struct in6_addr start6, end6; /* range of available addresses */
|
|
struct in6_addr local6;
|
|
int prefix, if_index;
|
|
unsigned int valid, preferred, saved_valid;
|
|
time_t ra_time, ra_short_period_start, address_lost_time;
|
|
char *template_interface;
|
|
#endif
|
|
int flags;
|
|
struct dhcp_netid netid, *filter;
|
|
struct dhcp_context *next, *current;
|
|
};
|
|
|
|
struct shared_network {
|
|
int if_index;
|
|
struct in_addr match_addr, shared_addr;
|
|
#ifdef HAVE_DHCP6
|
|
/* shared_addr == 0 for IP6 entries. */
|
|
struct in6_addr match_addr6, shared_addr6;
|
|
#endif
|
|
struct shared_network *next;
|
|
};
|
|
|
|
#define CONTEXT_STATIC (1u<<0)
|
|
#define CONTEXT_NETMASK (1u<<1)
|
|
#define CONTEXT_BRDCAST (1u<<2)
|
|
#define CONTEXT_PROXY (1u<<3)
|
|
#define CONTEXT_RA_ROUTER (1u<<4)
|
|
#define CONTEXT_RA_DONE (1u<<5)
|
|
#define CONTEXT_RA_NAME (1u<<6)
|
|
#define CONTEXT_RA_STATELESS (1u<<7)
|
|
#define CONTEXT_DHCP (1u<<8)
|
|
#define CONTEXT_DEPRECATE (1u<<9)
|
|
#define CONTEXT_TEMPLATE (1u<<10) /* create contexts using addresses */
|
|
#define CONTEXT_CONSTRUCTED (1u<<11)
|
|
#define CONTEXT_GC (1u<<12)
|
|
#define CONTEXT_RA (1u<<13)
|
|
#define CONTEXT_CONF_USED (1u<<14)
|
|
#define CONTEXT_USED (1u<<15)
|
|
#define CONTEXT_OLD (1u<<16)
|
|
#define CONTEXT_V6 (1u<<17)
|
|
#define CONTEXT_RA_OFF_LINK (1u<<18)
|
|
#define CONTEXT_SETLEASE (1u<<19)
|
|
|
|
struct ping_result {
|
|
struct in_addr addr;
|
|
time_t time;
|
|
unsigned int hash;
|
|
struct ping_result *next;
|
|
};
|
|
|
|
struct tftp_file {
|
|
int refcount, fd;
|
|
off_t size;
|
|
dev_t dev;
|
|
ino_t inode;
|
|
char filename[];
|
|
};
|
|
|
|
struct tftp_transfer {
|
|
int sockfd;
|
|
time_t timeout;
|
|
int backoff;
|
|
unsigned int block, blocksize, expansion;
|
|
off_t offset;
|
|
union mysockaddr peer;
|
|
union all_addr source;
|
|
int if_index;
|
|
char opt_blocksize, opt_transize, netascii, carrylf;
|
|
struct tftp_file *file;
|
|
struct tftp_transfer *next;
|
|
};
|
|
|
|
struct addr_list {
|
|
struct in_addr addr;
|
|
struct addr_list *next;
|
|
};
|
|
|
|
struct tftp_prefix {
|
|
char *interface;
|
|
char *prefix;
|
|
int missing;
|
|
struct tftp_prefix *next;
|
|
};
|
|
|
|
struct dhcp_relay {
|
|
union all_addr local, server;
|
|
char *interface; /* Allowable interface for replies from server, and dest for IPv6 multicast */
|
|
int iface_index; /* working - interface in which requests arrived, for return */
|
|
int port; /* Port of relay we forward to. */
|
|
#ifdef HAVE_SCRIPT
|
|
struct snoop_record {
|
|
struct in6_addr client, prefix;
|
|
int prefix_len;
|
|
struct snoop_record *next;
|
|
} *snoop_records;
|
|
#endif
|
|
struct dhcp_relay *next;
|
|
};
|
|
|
|
extern struct daemon {
|
|
/* datastuctures representing the command-line and
|
|
config file arguments. All set (including defaults)
|
|
in option.c */
|
|
|
|
unsigned int options[OPTION_SIZE];
|
|
struct resolvc default_resolv, *resolv_files;
|
|
time_t last_resolv;
|
|
char *servers_file;
|
|
struct mx_srv_record *mxnames;
|
|
struct naptr *naptr;
|
|
struct txt_record *txt, *rr;
|
|
struct ptr_record *ptr;
|
|
struct rrlist *cache_rr, *filter_rr;
|
|
struct host_record *host_records, *host_records_tail;
|
|
struct cname *cnames;
|
|
struct auth_zone *auth_zones;
|
|
struct interface_name *int_names;
|
|
char *mxtarget;
|
|
struct mysubnet *add_subnet4;
|
|
struct mysubnet *add_subnet6;
|
|
char *lease_file;
|
|
char *username, *groupname, *scriptuser;
|
|
char *luascript;
|
|
char *authserver, *hostmaster;
|
|
struct iname *authinterface;
|
|
struct name_list *secondary_forward_server;
|
|
int group_set, osport;
|
|
char *domain_suffix;
|
|
struct cond_domain *cond_domain, *synth_domains;
|
|
char *runfile;
|
|
char *lease_change_command;
|
|
struct iname *if_names, *if_addrs, *if_except, *dhcp_except, *auth_peers, *tftp_interfaces;
|
|
struct bogus_addr *bogus_addr, *ignore_addr;
|
|
struct server *servers, *servers_tail, *local_domains, **serverarray;
|
|
struct rebind_domain *no_rebind;
|
|
int server_has_wildcard;
|
|
int serverarraysz, serverarrayhwm;
|
|
struct ipsets *ipsets, *nftsets;
|
|
u32 allowlist_mask;
|
|
struct allowlist *allowlists;
|
|
int log_fac; /* log facility */
|
|
char *log_file; /* optional log file */
|
|
int max_logs; /* queue limit */
|
|
int randport_limit; /* Maximum number of source ports for query. */
|
|
int cachesize, ftabsize;
|
|
int port, query_port, min_port, max_port;
|
|
unsigned long local_ttl, neg_ttl, max_ttl, min_cache_ttl, max_cache_ttl, auth_ttl, dhcp_ttl, use_dhcp_ttl;
|
|
char *dns_client_id;
|
|
u32 umbrella_org;
|
|
u32 umbrella_asset;
|
|
u8 umbrella_device[8];
|
|
int host_index;
|
|
struct hostsfile *addn_hosts;
|
|
struct dhcp_context *dhcp, *dhcp6;
|
|
struct ra_interface *ra_interfaces;
|
|
struct dhcp_config *dhcp_conf;
|
|
struct dhcp_opt *dhcp_opts, *dhcp_match, *dhcp_opts6, *dhcp_match6;
|
|
struct dhcp_match_name *dhcp_name_match;
|
|
struct dhcp_pxe_vendor *dhcp_pxe_vendors;
|
|
struct dhcp_vendor *dhcp_vendors;
|
|
struct dhcp_mac *dhcp_macs;
|
|
struct dhcp_boot *boot_config;
|
|
struct pxe_service *pxe_services;
|
|
struct tag_if *tag_if;
|
|
struct addr_list *override_relays;
|
|
struct dhcp_relay *relay4, *relay6;
|
|
struct delay_config *delay_conf;
|
|
int override;
|
|
int enable_pxe;
|
|
int doing_ra, doing_dhcp6;
|
|
struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names, *dhcp_gen_names;
|
|
struct dhcp_netid_list *force_broadcast, *bootp_dynamic;
|
|
struct hostsfile *dhcp_hosts_file, *dhcp_opts_file;
|
|
struct dyndir *dynamic_dirs;
|
|
int dhcp_max, tftp_max, tftp_mtu;
|
|
int dhcp_server_port, dhcp_client_port;
|
|
int start_tftp_port, end_tftp_port;
|
|
unsigned int min_leasetime;
|
|
struct doctor *doctors;
|
|
unsigned short edns_pktsz;
|
|
char *tftp_prefix;
|
|
struct tftp_prefix *if_prefix; /* per-interface TFTP prefixes */
|
|
unsigned int duid_enterprise, duid_config_len;
|
|
unsigned char *duid_config;
|
|
char *dbus_name;
|
|
char *ubus_name;
|
|
char *dump_file;
|
|
int dump_mask;
|
|
unsigned long soa_sn, soa_refresh, soa_retry, soa_expiry;
|
|
u32 metrics[__METRIC_MAX];
|
|
int fast_retry_time, fast_retry_timeout;
|
|
int cache_max_expiry;
|
|
#ifdef HAVE_DNSSEC
|
|
struct ds_config *ds;
|
|
char *timestamp_file;
|
|
#endif
|
|
|
|
/* globally used stuff for DNS */
|
|
char *packet; /* packet buffer */
|
|
int packet_buff_sz; /* size of above */
|
|
char *namebuff; /* MAXDNAME size buffer */
|
|
char *workspacename;
|
|
#ifdef HAVE_DNSSEC
|
|
char *keyname; /* MAXDNAME size buffer */
|
|
unsigned long *rr_status; /* ceiling in TTL from DNSSEC or zero for insecure */
|
|
int rr_status_sz;
|
|
int dnssec_no_time_check;
|
|
int back_to_the_future;
|
|
#endif
|
|
struct frec *frec_list;
|
|
struct frec_src *free_frec_src;
|
|
int frec_src_count;
|
|
struct serverfd *sfds;
|
|
struct irec *interfaces;
|
|
struct listener *listeners;
|
|
struct server *srv_save; /* Used for resend on DoD */
|
|
size_t packet_len; /* " " */
|
|
int fd_save; /* " " */
|
|
pid_t *tcp_pids;
|
|
int *tcp_pipes;
|
|
int pipe_to_parent;
|
|
int numrrand;
|
|
struct randfd *randomsocks;
|
|
struct randfd_list *rfl_spare, *rfl_poll;
|
|
int v6pktinfo;
|
|
struct addrlist *interface_addrs; /* list of all addresses/prefix lengths associated with all local interfaces */
|
|
int log_id, log_display_id; /* ids of transactions for logging */
|
|
union mysockaddr *log_source_addr;
|
|
|
|
/* DHCP state */
|
|
int dhcpfd, helperfd, pxefd;
|
|
#ifdef HAVE_INOTIFY
|
|
int inotifyfd;
|
|
#endif
|
|
#if defined(HAVE_LINUX_NETWORK)
|
|
int netlinkfd, kernel_version;
|
|
#elif defined(HAVE_BSD_NETWORK)
|
|
int dhcp_raw_fd, dhcp_icmp_fd, routefd;
|
|
#endif
|
|
struct iovec dhcp_packet;
|
|
char *dhcp_buff, *dhcp_buff2, *dhcp_buff3;
|
|
struct ping_result *ping_results;
|
|
FILE *lease_stream;
|
|
struct dhcp_bridge *bridges;
|
|
struct shared_network *shared_networks;
|
|
#ifdef HAVE_DHCP6
|
|
int duid_len;
|
|
unsigned char *duid;
|
|
struct iovec outpacket;
|
|
int dhcp6fd, icmp6fd;
|
|
# ifdef HAVE_SCRIPT
|
|
struct snoop_record *free_snoops;
|
|
# endif
|
|
#endif
|
|
|
|
/* DBus stuff */
|
|
/* void * here to avoid depending on dbus headers outside dbus.c */
|
|
void *dbus;
|
|
#ifdef HAVE_DBUS
|
|
struct watch *watches;
|
|
#endif
|
|
|
|
/* UBus stuff */
|
|
#ifdef HAVE_UBUS
|
|
/* void * here to avoid depending on ubus headers outside ubus.c */
|
|
void *ubus;
|
|
#endif
|
|
|
|
/* TFTP stuff */
|
|
struct tftp_transfer *tftp_trans, *tftp_done_trans;
|
|
|
|
/* utility string buffer, hold max sized IP address as string */
|
|
char *addrbuff;
|
|
char *addrbuff2; /* only allocated when OPT_EXTRALOG */
|
|
|
|
#ifdef HAVE_DUMPFILE
|
|
/* file for packet dumps. */
|
|
int dumpfd;
|
|
#endif
|
|
int max_procs;
|
|
uint max_procs_used;
|
|
} *daemon;
|
|
|
|
struct server_details {
|
|
union mysockaddr *addr, *source_addr;
|
|
struct addrinfo *hostinfo, *orig_hostinfo;
|
|
char *interface, *source, *scope_id, *interface_opt;
|
|
int serv_port, source_port, addr_type, scope_index, valid;
|
|
u16 *flags;
|
|
};
|
|
|
|
/* cache.c */
|
|
void cache_init(void);
|
|
unsigned short rrtype(char *in);
|
|
void next_uid(struct crec *crecp);
|
|
/********************************************* Pi-hole modification ***********************************************/
|
|
#define log_query(flags,name,addr,arg,type) _log_query(flags, name, addr, arg, type, __FILE__, __LINE__)
|
|
void _log_query(unsigned int flags, char *name, union all_addr *addr, char *arg, unsigned short type, const char* file, const int line);
|
|
struct cache_info {
|
|
struct valid {
|
|
int ipv4;
|
|
int ipv6;
|
|
int cname;
|
|
int srv;
|
|
int ds;
|
|
int dnskey;
|
|
int other;
|
|
} valid;
|
|
int expired;
|
|
int immortal;
|
|
};
|
|
void get_dnsmasq_cache_info(struct cache_info *ci);
|
|
/******************************************************************************************************************/
|
|
char *record_source(unsigned int index);
|
|
int cache_find_non_terminal(char *name, time_t now);
|
|
struct crec *cache_find_by_addr(struct crec *crecp,
|
|
union all_addr *addr, time_t now,
|
|
unsigned int prot);
|
|
struct crec *cache_find_by_name(struct crec *crecp,
|
|
char *name, time_t now, unsigned int prot);
|
|
void cache_end_insert(void);
|
|
void cache_start_insert(void);
|
|
unsigned int cache_remove_uid(const unsigned int uid);
|
|
int cache_recv_insert(time_t now, int fd);
|
|
struct crec *cache_insert(char *name, union all_addr *addr, unsigned short class,
|
|
time_t now, unsigned long ttl, unsigned int flags);
|
|
void cache_reload(void);
|
|
void cache_add_dhcp_entry(char *host_name, int prot, union all_addr *host_address, time_t ttd);
|
|
struct in_addr a_record_from_hosts(char *name, time_t now);
|
|
void cache_unhash_dhcp(void);
|
|
void dump_cache(time_t now);
|
|
#ifndef NO_ID
|
|
int cache_make_stat(struct txt_record *t);
|
|
#endif
|
|
char *cache_get_name(struct crec *crecp);
|
|
char *cache_get_cname_target(struct crec *crecp);
|
|
struct crec *cache_enumerate(int init);
|
|
int read_hostsfile(char *filename, unsigned int index, int cache_size,
|
|
struct crec **rhash, int hashsz);
|
|
|
|
/* blockdata.c */
|
|
void blockdata_init(void);
|
|
void blockdata_report(void);
|
|
struct blockdata *blockdata_alloc(char *data, size_t len);
|
|
int blockdata_expand(struct blockdata *block, size_t oldlen,
|
|
char *data, size_t newlen);
|
|
void *blockdata_retrieve(struct blockdata *block, size_t len, void *data);
|
|
struct blockdata *blockdata_read(int fd, size_t len);
|
|
void blockdata_write(struct blockdata *block, size_t len, int fd);
|
|
void blockdata_free(struct blockdata *blocks);
|
|
|
|
/* domain.c */
|
|
char *get_domain(struct in_addr addr);
|
|
char *get_domain6(struct in6_addr *addr);
|
|
int is_name_synthetic(int flags, char *name, union all_addr *addr);
|
|
int is_rev_synth(int flag, union all_addr *addr, char *name);
|
|
|
|
/* rfc1035.c */
|
|
int do_doctor(struct dns_header *header, size_t qlen, char *namebuff);
|
|
int extract_name(struct dns_header *header, size_t plen, unsigned char **pp,
|
|
char *name, int isExtract, int extrabytes);
|
|
unsigned char *skip_name(unsigned char *ansp, struct dns_header *header, size_t plen, int extrabytes);
|
|
unsigned char *skip_questions(struct dns_header *header, size_t plen);
|
|
unsigned char *skip_section(unsigned char *ansp, int count, struct dns_header *header, size_t plen);
|
|
unsigned int extract_request(struct dns_header *header, size_t qlen,
|
|
char *name, unsigned short *typep);
|
|
void setup_reply(struct dns_header *header, unsigned int flags, int ede);
|
|
int extract_addresses(struct dns_header *header, size_t qlen, char *name,
|
|
time_t now, struct ipsets *ipsets, struct ipsets *nftsets, int is_sign,
|
|
int check_rebind, int no_cache_dnssec, int secure);
|
|
#if defined(HAVE_CONNTRACK) && defined(HAVE_UBUS)
|
|
void report_addresses(struct dns_header *header, size_t len, u32 mark);
|
|
#endif
|
|
size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
|
struct in_addr local_addr, struct in_addr local_netmask,
|
|
time_t now, int ad_reqd, int do_bit, int have_pseudoheader,
|
|
int *stale, int *filtered);
|
|
int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name,
|
|
time_t now);
|
|
int check_for_ignored_address(struct dns_header *header, size_t qlen);
|
|
int check_for_local_domain(char *name, time_t now);
|
|
size_t resize_packet(struct dns_header *header, size_t plen,
|
|
unsigned char *pheader, size_t hlen);
|
|
int add_resource_record(struct dns_header *header, char *limit, int *truncp,
|
|
int nameoffset, unsigned char **pp, unsigned long ttl,
|
|
int *offset, unsigned short type, unsigned short class, char *format, ...);
|
|
int in_arpa_name_2_addr(char *namein, union all_addr *addrp);
|
|
int private_net(struct in_addr addr, int ban_localhost);
|
|
|
|
/* auth.c */
|
|
#ifdef HAVE_AUTH
|
|
size_t answer_auth(struct dns_header *header, char *limit, size_t qlen,
|
|
time_t now, union mysockaddr *peer_addr, int local_query,
|
|
int do_bit, int have_pseudoheader);
|
|
int in_zone(struct auth_zone *zone, char *name, char **cut);
|
|
#endif
|
|
|
|
/* dnssec.c */
|
|
#ifdef HAVE_DNSSEC
|
|
size_t dnssec_generate_query(struct dns_header *header, unsigned char *end, char *name, int class, int type, int edns_pktsz);
|
|
int dnssec_validate_by_ds(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int class);
|
|
int dnssec_validate_ds(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int class);
|
|
int dnssec_validate_reply(time_t now, struct dns_header *header, size_t plen, char *name, char *keyname, int *class,
|
|
int check_unsigned, int *neganswer, int *nons, int *nsec_ttl);
|
|
int dnskey_keytag(int alg, int flags, unsigned char *key, int keylen);
|
|
size_t filter_rrsigs(struct dns_header *header, size_t plen);
|
|
int setup_timestamp(void);
|
|
int errflags_to_ede(int status);
|
|
#endif
|
|
|
|
/* hash_questions.c */
|
|
void hash_questions_init(void);
|
|
unsigned char *hash_questions(struct dns_header *header, size_t plen, char *name);
|
|
|
|
/* crypto.c */
|
|
const struct nettle_hash *hash_find(char *name);
|
|
int hash_init(const struct nettle_hash *hash, void **ctxp, unsigned char **digestp);
|
|
int verify(struct blockdata *key_data, unsigned int key_len, unsigned char *sig, size_t sig_len,
|
|
unsigned char *digest, size_t digest_len, int algo);
|
|
char *ds_digest_name(int digest);
|
|
char *algo_digest_name(int algo);
|
|
char *nsec3_digest_name(int digest);
|
|
|
|
/* util.c */
|
|
void rand_init(void);
|
|
unsigned short rand16(void);
|
|
u32 rand32(void);
|
|
u64 rand64(void);
|
|
int rr_on_list(struct rrlist *list, unsigned short rr);
|
|
int legal_hostname(char *name);
|
|
char *canonicalise(char *in, int *nomem);
|
|
unsigned char *do_rfc1035_name(unsigned char *p, char *sval, char *limit);
|
|
void *safe_malloc(size_t size);
|
|
void safe_strncpy(char *dest, const char *src, size_t size);
|
|
void safe_pipe(int *fd, int read_noblock);
|
|
void *whine_malloc(size_t size);
|
|
void *whine_realloc(void *ptr, size_t size);
|
|
int sa_len(union mysockaddr *addr);
|
|
int sockaddr_isequal(const union mysockaddr *s1, const union mysockaddr *s2);
|
|
int sockaddr_isnull(const union mysockaddr *s);
|
|
int hostname_order(const char *a, const char *b);
|
|
int hostname_isequal(const char *a, const char *b);
|
|
int hostname_issubdomain(char *a, char *b);
|
|
time_t dnsmasq_time(void);
|
|
u32 dnsmasq_milliseconds(void);
|
|
int netmask_length(struct in_addr mask);
|
|
int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask);
|
|
int is_same_net_prefix(struct in_addr a, struct in_addr b, int prefix);
|
|
int is_same_net6(struct in6_addr *a, struct in6_addr *b, int prefixlen);
|
|
u64 addr6part(struct in6_addr *addr);
|
|
void setaddr6part(struct in6_addr *addr, u64 host);
|
|
int retry_send(ssize_t rc);
|
|
void prettyprint_time(char *buf, unsigned int t);
|
|
int prettyprint_addr(union mysockaddr *addr, char *buf);
|
|
int parse_hex(char *in, unsigned char *out, int maxlen,
|
|
unsigned int *wildcard_mask, int *mac_type);
|
|
int memcmp_masked(unsigned char *a, unsigned char *b, int len,
|
|
unsigned int mask);
|
|
int expand_buf(struct iovec *iov, size_t size);
|
|
char *print_mac(char *buff, unsigned char *mac, int len);
|
|
int read_write(int fd, unsigned char *packet, int size, int rw);
|
|
void close_fds(long max_fd, int spare1, int spare2, int spare3);
|
|
int wildcard_match(const char* wildcard, const char* match);
|
|
int wildcard_matchn(const char* wildcard, const char* match, int num);
|
|
#ifdef HAVE_LINUX_NETWORK
|
|
int kernel_version(void);
|
|
#endif
|
|
|
|
/* log.c */
|
|
void die(char *message, char *arg1, int exit_code) ATTRIBUTE_NORETURN;
|
|
int log_start(struct passwd *ent_pw, int errfd);
|
|
int log_reopen(char *log_file);
|
|
|
|
void my_syslog(int priority, const char *format, ...);
|
|
|
|
void set_log_writer(void);
|
|
void check_log_writer(int force);
|
|
void flush_log(void);
|
|
|
|
/* option.c */
|
|
void read_opts (int argc, char **argv, char *compile_opts);
|
|
char *option_string(int prot, unsigned int opt, unsigned char *val,
|
|
int opt_len, char *buf, int buf_len);
|
|
void reread_dhcp(void);
|
|
void read_servers_file(void);
|
|
void set_option_bool(unsigned int opt);
|
|
void reset_option_bool(unsigned int opt);
|
|
struct hostsfile *expand_filelist(struct hostsfile *list);
|
|
char *parse_server(char *arg, struct server_details *sdetails);
|
|
char *parse_server_addr(struct server_details *sdetails);
|
|
int parse_server_next(struct server_details *sdetails);
|
|
int option_read_dynfile(char *file, int flags);
|
|
|
|
/* forward.c */
|
|
void reply_query(int fd, time_t now);
|
|
void receive_query(struct listener *listen, time_t now);
|
|
unsigned char *tcp_request(int confd, time_t now,
|
|
union mysockaddr *local_addr, struct in_addr netmask, int auth_dns);
|
|
void server_gone(struct server *server);
|
|
int send_from(int fd, int nowild, char *packet, size_t len,
|
|
union mysockaddr *to, union all_addr *source,
|
|
unsigned int iface);
|
|
void resend_query(void);
|
|
int allocate_rfd(struct randfd_list **fdlp, struct server *serv);
|
|
void free_rfds(struct randfd_list **fdlp);
|
|
int fast_retry(time_t now);
|
|
|
|
/* network.c */
|
|
int indextoname(int fd, int index, char *name);
|
|
int local_bind(int fd, union mysockaddr *addr, char *intname, unsigned int ifindex, int is_tcp);
|
|
void pre_allocate_sfds(void);
|
|
int reload_servers(char *fname);
|
|
void check_servers(int no_loop_call);
|
|
int enumerate_interfaces(int reset);
|
|
void create_wildcard_listeners(void);
|
|
void create_bound_listeners(int dienow);
|
|
void warn_bound_listeners(void);
|
|
void warn_wild_labels(void);
|
|
void warn_int_names(void);
|
|
int is_dad_listeners(void);
|
|
int iface_check(int family, union all_addr *addr, char *name, int *auth);
|
|
int loopback_exception(int fd, int family, union all_addr *addr, char *name);
|
|
int label_exception(int index, int family, union all_addr *addr);
|
|
int fix_fd(int fd);
|
|
int tcp_interface(int fd, int af);
|
|
int set_ipv6pktinfo(int fd);
|
|
#ifdef HAVE_DHCP6
|
|
void join_multicast(int dienow);
|
|
#endif
|
|
#if defined(HAVE_LINUX_NETWORK) || defined(HAVE_BSD_NETWORK)
|
|
void newaddress(time_t now);
|
|
#endif
|
|
|
|
|
|
/* dhcp.c */
|
|
#ifdef HAVE_DHCP
|
|
void dhcp_init(void);
|
|
void dhcp_packet(time_t now, int pxe_fd);
|
|
struct dhcp_context *address_available(struct dhcp_context *context,
|
|
struct in_addr taddr,
|
|
struct dhcp_netid *netids);
|
|
struct dhcp_context *narrow_context(struct dhcp_context *context,
|
|
struct in_addr taddr,
|
|
struct dhcp_netid *netids);
|
|
struct ping_result *do_icmp_ping(time_t now, struct in_addr addr,
|
|
unsigned int hash, int loopback);
|
|
int address_allocate(struct dhcp_context *context,
|
|
struct in_addr *addrp, unsigned char *hwaddr, int hw_len,
|
|
struct dhcp_netid *netids, time_t now, int loopback);
|
|
void dhcp_read_ethers(void);
|
|
struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr);
|
|
char *host_from_dns(struct in_addr addr);
|
|
#endif
|
|
|
|
/* lease.c */
|
|
#ifdef HAVE_DHCP
|
|
void lease_update_file(time_t now);
|
|
void lease_update_dns(int force);
|
|
void lease_init(time_t now);
|
|
struct dhcp_lease *lease4_allocate(struct in_addr addr);
|
|
#ifdef HAVE_DHCP6
|
|
struct dhcp_lease *lease6_allocate(struct in6_addr *addrp, int lease_type);
|
|
struct dhcp_lease *lease6_find(unsigned char *clid, int clid_len,
|
|
int lease_type, unsigned int iaid, struct in6_addr *addr);
|
|
void lease6_reset(void);
|
|
struct dhcp_lease *lease6_find_by_client(struct dhcp_lease *first, int lease_type,
|
|
unsigned char *clid, int clid_len, unsigned int iaid);
|
|
struct dhcp_lease *lease6_find_by_addr(struct in6_addr *net, int prefix, u64 addr);
|
|
u64 lease_find_max_addr6(struct dhcp_context *context);
|
|
void lease_ping_reply(struct in6_addr *sender, unsigned char *packet, char *interface);
|
|
void lease_update_slaac(time_t now);
|
|
void lease_set_iaid(struct dhcp_lease *lease, unsigned int iaid);
|
|
void lease_make_duid(time_t now);
|
|
#endif
|
|
void lease_set_hwaddr(struct dhcp_lease *lease, const unsigned char *hwaddr,
|
|
const unsigned char *clid, int hw_len, int hw_type,
|
|
int clid_len, time_t now, int force);
|
|
void lease_set_hostname(struct dhcp_lease *lease, const char *name, int auth, char *domain, char *config_domain);
|
|
void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now);
|
|
void lease_set_interface(struct dhcp_lease *lease, int interface, time_t now);
|
|
struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr, int hw_len, int hw_type,
|
|
unsigned char *clid, int clid_len);
|
|
struct dhcp_lease *lease_find_by_addr(struct in_addr addr);
|
|
struct in_addr lease_find_max_addr(struct dhcp_context *context);
|
|
void lease_prune(struct dhcp_lease *target, time_t now);
|
|
void lease_update_from_configs(void);
|
|
int do_script_run(time_t now);
|
|
void rerun_scripts(void);
|
|
void lease_find_interfaces(time_t now);
|
|
void lease_calc_fqdns(void);
|
|
#ifdef HAVE_SCRIPT
|
|
void lease_add_extradata(struct dhcp_lease *lease, unsigned char *data,
|
|
unsigned int len, int delim);
|
|
#endif
|
|
#endif
|
|
|
|
/* rfc2131.c */
|
|
#ifdef HAVE_DHCP
|
|
size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
|
|
size_t sz, time_t now, int unicast_dest, int loopback,
|
|
int *is_inform, int pxe, struct in_addr fallback, time_t recvtime);
|
|
unsigned char *extended_hwaddr(int hwtype, int hwlen, unsigned char *hwaddr,
|
|
int clid_len, unsigned char *clid, int *len_out);
|
|
#endif
|
|
|
|
/* dnsmasq.c */
|
|
#ifdef HAVE_DHCP
|
|
int make_icmp_sock(void);
|
|
int icmp_ping(struct in_addr addr);
|
|
int delay_dhcp(time_t start, int sec, int fd, uint32_t addr, unsigned short id);
|
|
#endif
|
|
void queue_event(int event);
|
|
void send_alarm(time_t event, time_t now);
|
|
void send_event(int fd, int event, int data, char *msg);
|
|
void clear_cache_and_reload(time_t now);
|
|
|
|
/* netlink.c */
|
|
#ifdef HAVE_LINUX_NETWORK
|
|
char *netlink_init(void);
|
|
void netlink_multicast(void);
|
|
#endif
|
|
|
|
/* bpf.c */
|
|
#ifdef HAVE_BSD_NETWORK
|
|
void init_bpf(void);
|
|
void send_via_bpf(struct dhcp_packet *mess, size_t len,
|
|
struct in_addr iface_addr, struct ifreq *ifr);
|
|
void route_init(void);
|
|
void route_sock(void);
|
|
#endif
|
|
|
|
/* bpf.c or netlink.c */
|
|
/************ Pi-hole modification ************/
|
|
// We need to skip this function declaration
|
|
// when compiling FTLDNS code as it is not
|
|
// a valid prototype such that this line
|
|
// would throw an error when compiling
|
|
// dnsmasq_interface.c
|
|
#if !defined(FTLDNS)
|
|
/**********************************************/
|
|
int iface_enumerate(int family, void *parm, int (callback)());
|
|
/************ Pi-hole modification ************/
|
|
#endif
|
|
/**********************************************/
|
|
|
|
/* dbus.c */
|
|
#ifdef HAVE_DBUS
|
|
char *dbus_init(void);
|
|
void check_dbus_listeners(void);
|
|
void set_dbus_listeners(void);
|
|
# ifdef HAVE_DHCP
|
|
void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname);
|
|
# endif
|
|
#endif
|
|
|
|
/* ubus.c */
|
|
#ifdef HAVE_UBUS
|
|
char *ubus_init(void);
|
|
void set_ubus_listeners(void);
|
|
void check_ubus_listeners(void);
|
|
void ubus_event_bcast(const char *type, const char *mac, const char *ip, const char *name, const char *interface);
|
|
# ifdef HAVE_CONNTRACK
|
|
void ubus_event_bcast_connmark_allowlist_refused(u32 mark, const char *name);
|
|
void ubus_event_bcast_connmark_allowlist_resolved(u32 mark, const char *pattern, const char *ip, u32 ttl);
|
|
# endif
|
|
#endif
|
|
|
|
/* ipset.c */
|
|
#ifdef HAVE_IPSET
|
|
void ipset_init(void);
|
|
int add_to_ipset(const char *setname, const union all_addr *ipaddr, int flags, int remove);
|
|
#endif
|
|
|
|
/* nftset.c */
|
|
#ifdef HAVE_NFTSET
|
|
void nftset_init(void);
|
|
int add_to_nftset(const char *setpath, const union all_addr *ipaddr, int flags, int remove);
|
|
#endif
|
|
|
|
/* pattern.c */
|
|
#ifdef HAVE_CONNTRACK
|
|
int is_valid_dns_name(const char *value);
|
|
int is_valid_dns_name_pattern(const char *value);
|
|
int is_dns_name_matching_pattern(const char *name, const char *pattern);
|
|
#endif
|
|
|
|
/* helper.c */
|
|
#if defined(HAVE_SCRIPT)
|
|
int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd);
|
|
void helper_write(void);
|
|
void queue_script(int action, struct dhcp_lease *lease,
|
|
char *hostname, time_t now);
|
|
#ifdef HAVE_TFTP
|
|
void queue_tftp(off_t file_len, char *filename, union mysockaddr *peer);
|
|
#endif
|
|
void queue_arp(int action, unsigned char *mac, int maclen,
|
|
int family, union all_addr *addr);
|
|
int helper_buf_empty(void);
|
|
#ifdef HAVE_DHCP6
|
|
void queue_relay_snoop(struct in6_addr *client, int if_index, struct in6_addr *prefix, int prefix_len);
|
|
#endif
|
|
#endif
|
|
|
|
/* tftp.c */
|
|
#ifdef HAVE_TFTP
|
|
void tftp_request(struct listener *listen, time_t now);
|
|
void check_tftp_listeners(time_t now);
|
|
int do_tftp_script_run(void);
|
|
#endif
|
|
|
|
/* conntrack.c */
|
|
#ifdef HAVE_CONNTRACK
|
|
int get_incoming_mark(union mysockaddr *peer_addr, union all_addr *local_addr,
|
|
int istcp, unsigned int *markp);
|
|
#endif
|
|
|
|
/* dhcp6.c */
|
|
#ifdef HAVE_DHCP6
|
|
void dhcp6_init(void);
|
|
void dhcp6_packet(time_t now);
|
|
struct dhcp_context *address6_allocate(struct dhcp_context *context, unsigned char *clid, int clid_len, int temp_addr,
|
|
unsigned int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans);
|
|
struct dhcp_context *address6_available(struct dhcp_context *context,
|
|
struct in6_addr *taddr,
|
|
struct dhcp_netid *netids,
|
|
int plain_range);
|
|
struct dhcp_context *address6_valid(struct dhcp_context *context,
|
|
struct in6_addr *taddr,
|
|
struct dhcp_netid *netids,
|
|
int plain_range);
|
|
struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct in6_addr *net,
|
|
int prefix, struct in6_addr *addr);
|
|
void make_duid(time_t now);
|
|
void dhcp_construct_contexts(time_t now);
|
|
void get_client_mac(struct in6_addr *client, int iface, unsigned char *mac,
|
|
unsigned int *maclenp, unsigned int *mactypep, time_t now);
|
|
#endif
|
|
|
|
/* rfc3315.c */
|
|
#ifdef HAVE_DHCP6
|
|
unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *iface_name,
|
|
struct in6_addr *fallback, struct in6_addr *ll_addr, struct in6_addr *ula_addr,
|
|
size_t sz, struct in6_addr *client_addr, time_t now);
|
|
int relay_upstream6(int iface_index, ssize_t sz, struct in6_addr *peer_address,
|
|
u32 scope_id, time_t now);
|
|
|
|
int relay_reply6( struct sockaddr_in6 *peer, ssize_t sz, char *arrival_interface);
|
|
# ifdef HAVE_SCRIPT
|
|
int do_snoop_script_run(void);
|
|
# endif
|
|
#endif
|
|
|
|
/* dhcp-common.c */
|
|
#ifdef HAVE_DHCP
|
|
void dhcp_common_init(void);
|
|
ssize_t recv_dhcp_packet(int fd, struct msghdr *msg);
|
|
struct dhcp_netid *run_tag_if(struct dhcp_netid *tags);
|
|
struct dhcp_netid *option_filter(struct dhcp_netid *tags, struct dhcp_netid *context_tags,
|
|
struct dhcp_opt *opts);
|
|
int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int tagnotneeded);
|
|
char *strip_hostname(char *hostname);
|
|
void log_tags(struct dhcp_netid *netid, u32 xid);
|
|
int match_bytes(struct dhcp_opt *o, unsigned char *p, int len);
|
|
void dhcp_update_configs(struct dhcp_config *configs);
|
|
void display_opts(void);
|
|
int lookup_dhcp_opt(int prot, char *name);
|
|
int lookup_dhcp_len(int prot, int val);
|
|
struct dhcp_config *find_config(struct dhcp_config *configs,
|
|
struct dhcp_context *context,
|
|
unsigned char *clid, int clid_len,
|
|
unsigned char *hwaddr, int hw_len,
|
|
int hw_type, char *hostname,
|
|
struct dhcp_netid *filter);
|
|
int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type);
|
|
#ifdef HAVE_LINUX_NETWORK
|
|
char *whichdevice(void);
|
|
int bind_dhcp_devices(char *bound_device);
|
|
#endif
|
|
# ifdef HAVE_DHCP6
|
|
void display_opts6(void);
|
|
# endif
|
|
void log_context(int family, struct dhcp_context *context);
|
|
void log_relay(int family, struct dhcp_relay *relay);
|
|
#endif
|
|
|
|
/* outpacket.c */
|
|
#ifdef HAVE_DHCP6
|
|
void end_opt6(int container);
|
|
void reset_counter(void);
|
|
int save_counter(int newval);
|
|
void *expand(size_t headroom);
|
|
int new_opt6(int opt);
|
|
void *put_opt6(void *data, size_t len);
|
|
void put_opt6_long(unsigned int val);
|
|
void put_opt6_short(unsigned int val);
|
|
void put_opt6_char(unsigned int val);
|
|
void put_opt6_string(char *s);
|
|
#endif
|
|
|
|
/* radv.c */
|
|
#ifdef HAVE_DHCP6
|
|
void ra_init(time_t now);
|
|
void icmp6_packet(time_t now);
|
|
time_t periodic_ra(time_t now);
|
|
void ra_start_unsolicited(time_t now, struct dhcp_context *context);
|
|
#endif
|
|
|
|
/* slaac.c */
|
|
#ifdef HAVE_DHCP6
|
|
void slaac_add_addrs(struct dhcp_lease *lease, time_t now, int force);
|
|
time_t periodic_slaac(time_t now, struct dhcp_lease *leases);
|
|
void slaac_ping_reply(struct in6_addr *sender, unsigned char *packet, char *interface, struct dhcp_lease *leases);
|
|
#endif
|
|
|
|
/* loop.c */
|
|
#ifdef HAVE_LOOP
|
|
void loop_send_probes(void);
|
|
int detect_loop(char *query, int type);
|
|
#endif
|
|
|
|
/* inotify.c */
|
|
#ifdef HAVE_INOTIFY
|
|
void inotify_dnsmasq_init(void);
|
|
int inotify_check(time_t now);
|
|
void set_dynamic_inotify(int flag, int total_size, struct crec **rhash, int revhashsz);
|
|
#endif
|
|
|
|
/* poll.c */
|
|
void poll_reset(void);
|
|
int poll_check(int fd, short event);
|
|
void poll_listen(int fd, short event);
|
|
int do_poll(int timeout);
|
|
|
|
/* rrfilter.c */
|
|
size_t rrfilter(struct dns_header *header, size_t *plen, int mode);
|
|
short *rrfilter_desc(int type);
|
|
int expand_workspace(unsigned char ***wkspc, int *szp, int new);
|
|
int to_wire(char *name);
|
|
void from_wire(char *name);
|
|
/* modes. */
|
|
#define RRFILTER_EDNS0 0
|
|
#define RRFILTER_DNSSEC 1
|
|
#define RRFILTER_CONF 2
|
|
|
|
/* edns0.c */
|
|
unsigned char *find_pseudoheader(struct dns_header *header, size_t plen,
|
|
size_t *len, unsigned char **p, int *is_sign, int *is_last);
|
|
size_t add_pseudoheader(struct dns_header *header, size_t plen, unsigned char *limit,
|
|
unsigned short udp_sz, int optno, unsigned char *opt, size_t optlen, int set_do, int replace);
|
|
size_t add_do_bit(struct dns_header *header, size_t plen, unsigned char *limit);
|
|
size_t add_edns0_config(struct dns_header *header, size_t plen, unsigned char *limit,
|
|
union mysockaddr *source, time_t now, int *cacheable);
|
|
int check_source(struct dns_header *header, size_t plen, unsigned char *pseudoheader, union mysockaddr *peer);
|
|
|
|
/* arp.c */
|
|
int find_mac(union mysockaddr *addr, unsigned char *mac, int lazy, time_t now);
|
|
int do_arp_script_run(void);
|
|
|
|
/* dump.c */
|
|
#ifdef HAVE_DUMPFILE
|
|
void dump_init(void);
|
|
void dump_packet_udp(int mask, void *packet, size_t len, union mysockaddr *src,
|
|
union mysockaddr *dst, int fd);
|
|
void dump_packet_icmp(int mask, void *packet, size_t len, union mysockaddr *src,
|
|
union mysockaddr *dst);
|
|
#endif
|
|
|
|
/* domain-match.c */
|
|
void build_server_array(void);
|
|
int lookup_domain(char *qdomain, int flags, int *lowout, int *highout);
|
|
int filter_servers(int seed, int flags, int *lowout, int *highout);
|
|
int is_local_answer(time_t now, int first, char *name);
|
|
size_t make_local_answer(int flags, int gotname, size_t size, struct dns_header *header,
|
|
char *name, char *limit, int first, int last, int ede);
|
|
int server_samegroup(struct server *a, struct server *b);
|
|
#ifdef HAVE_DNSSEC
|
|
int dnssec_server(struct server *server, char *keyname, int *firstp, int *lastp);
|
|
#endif
|
|
void mark_servers(int flag);
|
|
void cleanup_servers(void);
|
|
int add_update_server(int flags,
|
|
union mysockaddr *addr,
|
|
union mysockaddr *source_addr,
|
|
const char *interface,
|
|
const char *domain,
|
|
union all_addr *local_addr);
|
|
|
|
// Pi-hole modification
|
|
const char *edestr(int ede);
|