-/* dnsmasq is Copyright (c) 2000-2005 Simon Kelley
-
+/* dnsmasq is Copyright (c) 2000-2011 Simon Kelley
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 dated June, 1991.
-
+ the Free Software Foundation; version 2 dated June, 1991, or
+ (at your option) version 3 dated 29 June, 2007.
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#define COPYRIGHT "Copyright (C) 2000-2006 Simon Kelley"
+#define COPYRIGHT "Copyright (c) 2000-2011 Simon Kelley"
+
+#ifndef NO_LARGEFILE
+/* Ensure we can use files >2GB (log files may grow this big) */
+# define _LARGEFILE_SOURCE 1
+# define _FILE_OFFSET_BITS 64
+#endif
+
+/* Get linux C library versions and define _GNU_SOURCE for kFreeBSD. */
+#if defined(__linux__) || defined(__GLIBC__)
+# ifndef __ANDROID__
+# define _GNU_SOURCE
+# endif
+# include <features.h>
+#endif
+
+/* Need these defined early */
+#if defined(__sun) || defined(__sun__)
+# define _XPG4_2
+# define __EXTENSIONS__
+#endif
/* get these before config.h for IPv6 stuff... */
#include <sys/types.h>
+#include <sys/socket.h>
#include <netinet/in.h>
-#ifdef __APPLE__
-/* need this before arpa/nameser.h */
-# define BIND_8_COMPAT
-#endif
-#include <arpa/nameser.h>
-
/* and this. */
#include <getopt.h>
#include "config.h"
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+
+#include "dns_protocol.h"
+#include "dhcp_protocol.h"
+
#define gettext_noop(S) (S)
-#ifdef NO_GETTEXT
+#ifndef LOCALEDIR
# define _(S) (S)
#else
# include <libintl.h>
#include <arpa/inet.h>
#include <sys/stat.h>
-#include <sys/socket.h>
#include <sys/ioctl.h>
+#if defined(HAVE_SOLARIS_NETWORK)
+# include <sys/sockio.h>
+#endif
#include <sys/select.h>
#include <sys/wait.h>
#include <sys/time.h>
+#include <sys/un.h>
#include <limits.h>
#include <net/if.h>
+#if defined(HAVE_SOLARIS_NETWORK) && !defined(ifr_mtu)
+/* Some solaris net/if./h omit this. */
+# define ifr_mtu ifr_ifru.ifru_metric
+#endif
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <ctype.h>
#include <signal.h>
+#include <stddef.h>
#include <time.h>
#include <errno.h>
#include <pwd.h>
#include <grp.h>
#include <stdarg.h>
-#if defined(__OpenBSD__) || defined(__NetBSD__)
+#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun__) || defined (__sun) || defined (__ANDROID__)
# include <netinet/if_ether.h>
#else
# include <net/ethernet.h>
# include <net/if_dl.h>
#endif
-#ifdef HAVE_LINUX_NETWORK
+#if defined(HAVE_LINUX_NETWORK)
#include <linux/capability.h>
/* There doesn't seem to be a universally-available
- userpace header for this. */
+ userpace header for these. */
extern int capset(cap_user_header_t header, cap_user_data_t data);
+extern int capget(cap_user_header_t header, cap_user_data_t data);
+#define LINUX_CAPABILITY_VERSION_1 0x19980330
+#define LINUX_CAPABILITY_VERSION_2 0x20071026
+#define LINUX_CAPABILITY_VERSION_3 0x20080522
+
#include <sys/prctl.h>
+#elif defined(HAVE_SOLARIS_NETWORK)
+#include <priv.h>
#endif
+/* daemon is function in the C library.... */
+#define daemon dnsmasq_daemon
+
+/* Async event queue */
+struct event_desc {
+ int event, data;
+};
+
+#define EVENT_RELOAD 1
+#define EVENT_DUMP 2
+#define EVENT_ALARM 3
+#define EVENT_TERM 4
+#define EVENT_CHILD 5
+#define EVENT_REOPEN 6
+#define EVENT_EXITED 7
+#define EVENT_KILLED 8
+#define EVENT_EXEC_ERR 9
+#define EVENT_PIPE_ERR 10
+#define EVENT_USER_ERR 11
+#define EVENT_CAP_ERR 12
+#define EVENT_PIDFILE 13
+#define EVENT_HUSER_ERR 14
+#define EVENT_GROUP_ERR 15
+#define EVENT_DIE 16
+#define EVENT_LOG_ERR 17
+#define EVENT_FORK_ERR 18
+
+/* Exit codes. */
+#define EC_GOOD 0
+#define EC_BADCONF 1
+#define EC_BADNET 2
+#define EC_FILE 3
+#define EC_NOMEM 4
+#define EC_MISC 5
+#define EC_INIT_OFFSET 10
+
/* Min buffer size: we check after adding each record, so there must be
memory for the largest packet, and the largest record so the
min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000.
*/
#define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ
-#define OPT_BOGUSPRIV 1
-#define OPT_FILTER 2
-#define OPT_LOG 4
-#define OPT_SELFMX 8
-#define OPT_NO_HOSTS 16
-#define OPT_NO_POLL 32
-#define OPT_DEBUG 64
-#define OPT_ORDER 128
-#define OPT_NO_RESOLV 256
-#define OPT_EXPAND 512
-#define OPT_LOCALMX 1024
-#define OPT_NO_NEG 2048
-#define OPT_NODOTS_LOCAL 4096
-#define OPT_NOWILD 8192
-#define OPT_ETHERS 16384
-#define OPT_RESOLV_DOMAIN 32768
-#define OPT_NO_FORK 65536
-#define OPT_AUTHORITATIVE 131072
-#define OPT_LOCALISE 262144
-#define OPT_DBUS 524288
-#define OPT_BOOTP_DYNAMIC 1048576
-#define OPT_NO_PING 2097152
+/* Trust the compiler dead-code eliminator.... */
+#define option_bool(x) (((x) < 32) ? daemon->options & (1u << (x)) : daemon->options2 & (1u << ((x) - 32)))
+
+#define OPT_BOGUSPRIV 0
+#define OPT_FILTER 1
+#define OPT_LOG 2
+#define OPT_SELFMX 3
+#define OPT_NO_HOSTS 4
+#define OPT_NO_POLL 5
+#define OPT_DEBUG 6
+#define OPT_ORDER 7
+#define OPT_NO_RESOLV 8
+#define OPT_EXPAND 9
+#define OPT_LOCALMX 10
+#define OPT_NO_NEG 11
+#define OPT_NODOTS_LOCAL 12
+#define OPT_NOWILD 13
+#define OPT_ETHERS 14
+#define OPT_RESOLV_DOMAIN 15
+#define OPT_NO_FORK 16
+#define OPT_AUTHORITATIVE 17
+#define OPT_LOCALISE 18
+#define OPT_DBUS 19
+#define OPT_DHCP_FQDN 20
+#define OPT_NO_PING 21
+#define OPT_LEASE_RO 22
+#define OPT_ALL_SERVERS 23
+#define OPT_RELOAD 24
+#define OPT_LOCAL_REBIND 25
+#define OPT_TFTP_SECURE 26
+#define OPT_TFTP_NOBLOCK 27
+#define OPT_LOG_OPTS 28
+#define OPT_TFTP_APREF 29
+#define OPT_NO_OVERRIDE 30
+#define OPT_NO_REBIND 31
+#define OPT_ADD_MAC 32
+#define OPT_DNSSEC 33
+#define OPT_LAST 34
+
+/* extra flags for my_syslog, we use a couple of facilities since they are known
+ not to occupy the same bits as priorities, no matter how syslog.h is set up. */
+#define MS_TFTP LOG_USER
+#define MS_DHCP LOG_DAEMON
struct all_addr {
union {
/* dns doctor param */
struct doctor {
- struct in_addr in, out, mask;
+ struct in_addr in, end, out, mask;
struct doctor *next;
};
struct mx_srv_record *next;
};
+struct naptr {
+ char *name, *replace, *regexp, *services, *flags;
+ unsigned int order, pref;
+ struct naptr *next;
+};
+
struct txt_record {
- char *name, *txt;
+ char *name;
+ unsigned char *txt;
unsigned short class, len;
struct txt_record *next;
};
+struct ptr_record {
+ char *name, *ptr;
+ struct ptr_record *next;
+};
+
+struct cname {
+ char *alias, *target;
+ struct cname *next;
+};
+
+struct interface_name {
+ char *name; /* domain name */
+ char *intr; /* interface name */
+ struct interface_name *next;
+};
+
union bigname {
char name[MAXDNAME];
union bigname *next; /* freelist */
} name;
};
-#define F_IMMORTAL 1
-#define F_CONFIG 2
-#define F_REVERSE 4
-#define F_FORWARD 8
-#define F_DHCP 16
-#define F_NEG 32
-#define F_HOSTS 64
-#define F_IPV4 128
-#define F_IPV6 256
-#define F_BIGNAME 512
-#define F_UPSTREAM 1024
-#define F_SERVER 2048
-#define F_NXDOMAIN 4096
-#define F_QUERY 8192
-#define F_CNAME 16384
-#define F_NOERR 32768
+#define F_IMMORTAL (1u<<0)
+#define F_NAMEP (1u<<1)
+#define F_REVERSE (1u<<2)
+#define F_FORWARD (1u<<3)
+#define F_DHCP (1u<<4)
+#define F_NEG (1u<<5)
+#define F_HOSTS (1u<<6)
+#define F_IPV4 (1u<<7)
+#define F_IPV6 (1u<<8)
+#define F_BIGNAME (1u<<9)
+#define F_NXDOMAIN (1u<<10)
+#define F_CNAME (1u<<11)
+#define F_NOERR (1u<<12)
+#define F_CONFIG (1u<<13)
+/* below here are only valid as args to log_query: cache
+ entries are limited to 16 bits */
+#define F_UPSTREAM (1u<<16)
+#define F_RRNAME (1u<<17)
+#define F_SERVER (1u<<18)
+#define F_QUERY (1u<<19)
+#define F_NSRR (1u<<20)
+
/* struct sockaddr is not large enough to hold any address,
and specifically not big enough to hold an IPv6 address.
union mysockaddr {
struct sockaddr sa;
struct sockaddr_in in;
-#ifdef HAVE_BROKEN_SOCKADDR_IN6
- /* early versions of glibc don't include sin6_scope_id in sockaddr_in6
- but latest kernels _require_ it to be set. The choice is to have
- dnsmasq fail to compile on back-level libc or fail to run
- on latest kernels with IPv6. Or to do this: sorry that it's so gross. */
- struct my_sockaddr_in6 {
- sa_family_t sin6_family; /* AF_INET6 */
- uint16_t sin6_port; /* transport layer port # */
- uint32_t sin6_flowinfo; /* IPv6 traffic class & flow info */
- struct in6_addr sin6_addr; /* IPv6 address */
- uint32_t sin6_scope_id; /* set of interfaces for a scope */
- } in6;
-#elif defined(HAVE_IPV6)
+#if defined(HAVE_IPV6)
struct sockaddr_in6 in6;
#endif
};
#define SERV_FROM_RESOLV 1 /* 1 for servers from resolv, 0 for command line. */
#define SERV_NO_ADDR 2 /* no server, this domain is local only */
#define SERV_LITERAL_ADDRESS 4 /* addr is the answer, not the server */
-#define SERV_HAS_SOURCE 8 /* source address specified */
-#define SERV_HAS_DOMAIN 16 /* server for one domain only */
+#define SERV_HAS_DOMAIN 8 /* server for one domain only */
+#define SERV_HAS_SOURCE 16 /* source address defined */
#define SERV_FOR_NODOTS 32 /* server for names with no domain part only */
#define SERV_WARNED_RECURSIVE 64 /* avoid warning spam */
#define SERV_FROM_DBUS 128 /* 1 if source is DBus */
#define SERV_MARK 256 /* for mark-and-delete */
#define SERV_TYPE (SERV_HAS_DOMAIN | SERV_FOR_NODOTS)
-
+#define SERV_COUNTED 512 /* workspace for log code */
+#define SERV_USE_RESOLV 1024 /* forward this domain in the normal way */
+#define SERV_NO_REBIND 2048 /* inhibit dns-rebind protection */
struct serverfd {
int fd;
union mysockaddr source_addr;
+ char interface[IF_NAMESIZE+1];
struct serverfd *next;
};
+struct randfd {
+ int fd;
+ unsigned short refcount, family;
+};
+
struct server {
union mysockaddr addr, source_addr;
- struct serverfd *sfd; /* non-NULL if this server has its own fd bound to
- a source port */
+ char interface[IF_NAMESIZE+1];
+ struct serverfd *sfd;
char *domain; /* set if this server only handles a domain. */
int flags, tcpfd;
+ unsigned int queries, failed_queries;
struct server *next;
};
struct irec {
union mysockaddr addr;
struct in_addr netmask; /* only valid for IPv4 */
+ int tftp_ok, mtu;
+ char *name;
struct irec *next;
};
struct listener {
- int fd, tcpfd, family;
+ int fd, tcpfd, tftpfd, family;
struct irec *iface; /* only valid for non-wildcard */
struct listener *next;
};
char *name;
};
-/* adn-hosts parms from command-line */
+/* adn-hosts parms from command-line (also dhcp-hostsfile and dhcp-optsfile */
+#define AH_DIR 1
+#define AH_INACTIVE 2
struct hostsfile {
struct hostsfile *next;
+ int flags;
char *fname;
int index; /* matches to cache entries for logging */
};
+#define FREC_NOREBIND 1
+#define FREC_CHECKING_DISABLED 2
+
struct frec {
union mysockaddr source;
struct all_addr dest;
- struct server *sentto;
+ struct server *sentto; /* NULL means free */
+ struct randfd *rfd4;
+#ifdef HAVE_IPV6
+ struct randfd *rfd6;
+#endif
unsigned int iface;
unsigned short orig_id, new_id;
- int fd, forwardall;
+ int fd, forwardall, flags;
unsigned int crc;
time_t time;
struct frec *next;
};
-#define DHCP_CHADDR_MAX 16
+/* actions in the daemon->helper RPC */
+#define ACTION_DEL 1
+#define ACTION_OLD_HOSTNAME 2
+#define ACTION_OLD 3
+#define ACTION_ADD 4
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 */
char auth_name; /* hostname came from config, not from client */
char new; /* newly created */
- char old; /* read from leasefile */
+ char changed; /* modified */
+ char aux_changed; /* CLID or expiry changed */
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;
+ struct in_addr addr, override, giaddr;
+ unsigned char *extradata;
+ unsigned int extradata_len, extradata_size;
+ int last_interface;
struct dhcp_lease *next;
};
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 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 */
- int hwaddr_len, hwaddr_type;
- unsigned char hwaddr[DHCP_CHADDR_MAX];
- char *hostname;
- struct dhcp_netid netid;
+ char *hostname, *domain;
+ struct dhcp_netid_list *netid;
struct in_addr addr;
time_t decline_time;
- unsigned int lease_time, wildcard_mask;
+ unsigned int lease_time;
+ struct hwaddr_config *hwaddr;
struct dhcp_config *next;
};
#define CONFIG_DISABLE 1
#define CONFIG_CLID 2
-#define CONFIG_HWADDR 4
#define CONFIG_TIME 8
#define CONFIG_NAME 16
#define CONFIG_ADDR 32
-#define CONFIG_NETID 64
#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 */
struct dhcp_opt {
int opt, len, flags;
- unsigned char *val, *vendor_class;
+ 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
struct dhcp_boot {
char *file, *sname;
struct dhcp_boot *next;
};
+struct pxe_service {
+ unsigned short CSA, type;
+ char *menu, *basename;
+ struct in_addr server;
+ struct dhcp_netid *netid;
+ struct pxe_service *next;
+};
+
+#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 cicuit-id */
struct dhcp_vendor {
- int len, is_vendor;
+ int len, match_type, option;
char *data;
struct dhcp_netid netid;
struct dhcp_vendor *next;
struct dhcp_mac *next;
};
+struct dhcp_bridge {
+ char iface[IF_NAMESIZE];
+ struct dhcp_bridge *alias, *next;
+};
+
+struct cond_domain {
+ char *domain;
+ struct in_addr start, end;
+ struct cond_domain *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 */
int flags;
+ char *interface;
struct dhcp_netid netid, *filter;
struct dhcp_context *next, *current;
};
#define CONTEXT_STATIC 1
#define CONTEXT_NETMASK 2
#define CONTEXT_BRDCAST 4
+#define CONTEXT_PROXY 8
+struct ping_result {
+ struct in_addr addr;
+ time_t time;
+ struct ping_result *next;
+};
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-
+struct tftp_file {
+ int refcount, fd;
+ off_t size;
+ dev_t dev;
+ ino_t inode;
+ char filename[];
+};
-struct dhcp_packet {
- u8 op, htype, hlen, hops;
- u32 xid;
- u16 secs, flags;
- struct in_addr ciaddr, yiaddr, siaddr, giaddr;
- u8 chaddr[DHCP_CHADDR_MAX], sname[64], file[128];
- u8 options[312];
+struct tftp_transfer {
+ int sockfd;
+ time_t timeout;
+ int backoff;
+ unsigned int block, blocksize, expansion;
+ off_t offset;
+ union mysockaddr peer;
+ char opt_blocksize, opt_transize, netascii, carrylf;
+ struct tftp_file *file;
+ struct tftp_transfer *next;
};
-struct ping_result {
+struct addr_list {
struct in_addr addr;
- time_t time;
- struct ping_result *next;
+ struct addr_list *next;
+};
+
+struct interface_list {
+ char *interface;
+ struct interface_list *next;
};
-struct daemon {
+struct tftp_prefix {
+ char *interface;
+ char *prefix;
+ struct tftp_prefix *next;
+};
+
+
+extern struct daemon {
/* datastuctures representing the command-line and
config file arguments. All set (including defaults)
in option.c */
- unsigned int options;
+ unsigned int options, options2;
struct resolvc default_resolv, *resolv_files;
+ time_t last_resolv;
struct mx_srv_record *mxnames;
+ struct naptr *naptr;
struct txt_record *txt;
+ struct ptr_record *ptr;
+ struct cname *cnames;
+ struct interface_name *int_names;
char *mxtarget;
char *lease_file;
- char *username, *groupname;
+ char *username, *groupname, *scriptuser;
+ int group_set, osport;
char *domain_suffix;
+ struct cond_domain *cond_domain;
char *runfile;
char *lease_change_command;
struct iname *if_names, *if_addrs, *if_except, *dhcp_except;
struct bogus_addr *bogus_addr;
struct server *servers;
int log_fac; /* log facility */
- int cachesize;
- int port, query_port;
- unsigned long local_ttl;
+ char *log_file; /* optional log file */
+ int max_logs; /* queue limit */
+ int cachesize, ftabsize;
+ int port, query_port, min_port;
+ unsigned long local_ttl, neg_ttl, max_ttl;
struct hostsfile *addn_hosts;
struct dhcp_context *dhcp;
struct dhcp_config *dhcp_conf;
- struct dhcp_opt *dhcp_opts, *vendor_opts;
+ struct dhcp_opt *dhcp_opts, *dhcp_match;
struct dhcp_vendor *dhcp_vendors;
struct dhcp_mac *dhcp_macs;
struct dhcp_boot *boot_config;
- struct dhcp_netid_list *dhcp_ignore;
- int dhcp_max;
+ struct pxe_service *pxe_services;
+ struct tag_if *tag_if;
+ struct addr_list *override_relays;
+ int override;
+ int enable_pxe;
+ 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;
+ int dhcp_max, tftp_max;
+ 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 */
+ struct interface_list *tftp_interfaces; /* interfaces for limited TFTP service */
+ int tftp_unlimited;
/* globally used stuff for DNS */
char *packet; /* packet buffer */
int packet_buff_sz; /* size of above */
char *namebuff; /* MAXDNAME size buffer */
+ unsigned int local_answer, queries_forwarded;
+ struct frec *frec_list;
struct serverfd *sfds;
struct irec *interfaces;
struct listener *listeners;
struct server *last_server;
+ time_t forwardtime;
+ int forwardcount;
struct server *srv_save; /* Used for resend on DoD */
size_t packet_len; /* " " */
- pid_t script_pid, tcp_pids[MAX_PROCS];
- int num_kids;
-
+ struct randfd *rfd_save; /* " " */
+ pid_t tcp_pids[MAX_PROCS];
+ struct randfd randomsocks[RANDOM_SOCKS];
+ int v6pktinfo;
+
/* DHCP state */
- int dhcpfd;
-#ifdef HAVE_LINUX_NETWORK
+ int dhcpfd, helperfd, pxefd;
+#if defined(HAVE_LINUX_NETWORK)
int netlinkfd;
-#else
+#elif defined(HAVE_BSD_NETWORK)
int dhcp_raw_fd, dhcp_icmp_fd;
#endif
struct iovec dhcp_packet;
- char *dhcp_buff, *dhcp_buff2;
+ char *dhcp_buff, *dhcp_buff2, *dhcp_buff3;
struct ping_result *ping_results;
FILE *lease_stream;
+ struct dhcp_bridge *bridges;
/* DBus stuff */
-#ifdef HAVE_DBUS
/* void * here to avoid depending on dbus headers outside dbus.c */
void *dbus;
+#ifdef HAVE_DBUS
struct watch *watches;
#endif
-};
+ /* TFTP stuff */
+ struct tftp_transfer *tftp_trans;
+
+} *daemon;
/* cache.c */
-void cache_init(int cachesize, int log);
-void log_query(unsigned short flags, char *name, struct all_addr *addr,
- unsigned short type, struct hostsfile *addn_hosts, int index);
+void cache_init(void);
+void log_query(unsigned int flags, char *name, struct all_addr *addr, char *arg);
+char *record_source(int index);
+void querystr(char *str, unsigned short type);
struct crec *cache_find_by_addr(struct crec *crecp,
struct all_addr *addr, time_t now,
unsigned short prot);
void cache_start_insert(void);
struct crec *cache_insert(char *name, struct all_addr *addr,
time_t now, unsigned long ttl, unsigned short flags);
-void cache_reload(int opts, char *buff, char *domain_suffix, struct hostsfile *addn_hosts);
-void cache_add_dhcp_entry(struct daemon *daemon, char *host_name, struct in_addr *host_address, time_t ttd);
+void cache_reload(void);
+void cache_add_dhcp_entry(char *host_name, struct in_addr *host_address, time_t ttd);
void cache_unhash_dhcp(void);
-void dump_cache(struct daemon *daemon, time_t now);
+void dump_cache(time_t now);
char *cache_get_name(struct crec *crecp);
+char *get_domain(struct in_addr addr);
/* rfc1035.c */
-unsigned short extract_request(HEADER *header, size_t qlen,
+unsigned int extract_request(struct dns_header *header, size_t qlen,
char *name, unsigned short *typep);
-size_t setup_reply(HEADER *header, size_t qlen,
- struct all_addr *addrp, unsigned short flags,
+size_t setup_reply(struct dns_header *header, size_t qlen,
+ struct all_addr *addrp, unsigned int flags,
unsigned long local_ttl);
-void extract_addresses(HEADER *header, size_t qlen, char *namebuff,
- time_t now, struct daemon *daemon);
-size_t answer_request(HEADER *header, char *limit, size_t qlen, struct daemon *daemon,
+int extract_addresses(struct dns_header *header, size_t qlen, char *namebuff,
+ time_t now, int is_sign, int checkrebind, int checking_disabled);
+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 check_for_bogus_wildcard(HEADER *header, size_t qlen, char *name,
+int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name,
struct bogus_addr *addr, time_t now);
-unsigned char *find_pseudoheader(HEADER *header, size_t plen,
- size_t *len, unsigned char **p);
-int check_for_local_domain(char *name, time_t now, struct daemon *daemon);
-unsigned int questions_crc(HEADER *header, size_t plen, char *buff);
-size_t resize_packet(HEADER *header, size_t plen,
+unsigned char *find_pseudoheader(struct dns_header *header, size_t plen,
+ size_t *len, unsigned char **p, int *is_sign);
+int check_for_local_domain(char *name, time_t now);
+unsigned int questions_crc(struct dns_header *header, size_t plen, char *buff);
+size_t resize_packet(struct dns_header *header, size_t plen,
unsigned char *pheader, size_t hlen);
+size_t add_mac(struct dns_header *header, size_t plen, char *limit, union mysockaddr *l3);
/* util.c */
+void rand_init(void);
unsigned short rand16(void);
-int legal_char(char c);
-int canonicalise(char *s);
+int legal_hostname(char *c);
+char *canonicalise(char *s, int *nomem);
unsigned char *do_rfc1035_name(unsigned char *p, char *sval);
-void die(char *message, char *arg1);
-void complain(char *message, int lineno, char *file);
void *safe_malloc(size_t size);
+void safe_pipe(int *fd, int read_noblock);
+void *whine_malloc(size_t size);
int sa_len(union mysockaddr *addr);
int sockaddr_isequal(union mysockaddr *s1, union mysockaddr *s2);
int hostname_isequal(char *a, char *b);
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(struct daemon *daemon, unsigned char *mac, int len);
+char *print_mac(char *buff, unsigned char *mac, int len);
+void bump_maxfd(int fd, int *max);
+int read_write(int fd, unsigned char *packet, int size, int rw);
+
+/* log.c */
+void die(char *message, char *arg1, int exit_code);
+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(fd_set *set, int *maxfdp);
+void check_log_writer(fd_set *set);
+void flush_log(void);
/* option.c */
-struct daemon *read_opts (int argc, char **argv, char *compile_opts);
+void read_opts (int argc, char **argv, char *compile_opts);
+char *option_string(unsigned char opt, int *is_ip, int *is_name);
+void reread_dhcp(void);
+void set_option_bool(unsigned int opt);
+struct hostsfile *expand_filelist(struct hostsfile *list);
/* forward.c */
-void reply_query(struct serverfd *sfd, struct daemon *daemon, time_t now);
-void receive_query(struct listener *listen, struct daemon *daemon, time_t now);
-unsigned char *tcp_request(struct daemon *daemon, int confd, time_t now,
+void reply_query(int fd, int family, time_t now);
+void receive_query(struct listener *listen, time_t now);
+unsigned char *tcp_request(int confd, time_t now,
struct in_addr local_addr, struct in_addr netmask);
-void server_gone(struct daemon *daemon, struct server *server);
+void server_gone(struct server *server);
+struct frec *get_new_frec(time_t now, int *wait);
/* network.c */
-struct serverfd *allocate_sfd(union mysockaddr *addr, struct serverfd **sfds);
-int reload_servers(char *fname, struct daemon *daemon);
-void check_servers(struct daemon *daemon);
-int enumerate_interfaces(struct daemon *daemon);
-struct listener *create_wildcard_listeners(int port);
-struct listener *create_bound_listeners(struct daemon *daemon);
-int iface_check(struct daemon *daemon, int family,
- struct all_addr *addr, char *name);
+int indextoname(int fd, int index, char *name);
+int local_bind(int fd, union mysockaddr *addr, char *intname, int is_tcp);
+int random_sock(int family);
+void pre_allocate_sfds(void);
+int reload_servers(char *fname);
+void check_servers(void);
+int enumerate_interfaces();
+struct listener *create_wildcard_listeners(void);
+struct listener *create_bound_listeners(void);
+int iface_check(int family, struct all_addr *addr, char *name, int *indexp);
int fix_fd(int fd);
+struct in_addr get_ifaddr(char *intr);
/* dhcp.c */
-void dhcp_init(struct daemon *daemon);
-void dhcp_packet(struct daemon *daemon, time_t now);
-
-struct dhcp_context *address_available(struct dhcp_context *context, struct in_addr addr);
-struct dhcp_context *narrow_context(struct dhcp_context *context, struct in_addr taddr);
+#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 addr,
+ struct dhcp_netid *netids);
+struct dhcp_context *narrow_context(struct dhcp_context *context,
+ struct in_addr taddr,
+ struct dhcp_netid *netids);
int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly);
-int address_allocate(struct dhcp_context *context, struct daemon *daemon,
+int address_allocate(struct dhcp_context *context,
struct in_addr *addrp, unsigned char *hwaddr, int hw_len,
struct dhcp_netid *netids, time_t now);
+struct dhcp_netid *run_tag_if(struct dhcp_netid *input);
+int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type);
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);
void dhcp_update_configs(struct dhcp_config *configs);
-void dhcp_read_ethers(struct daemon *daemon);
+void dhcp_read_ethers(void);
+void check_dhcp_hosts(int fatal);
struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr);
-char *strip_hostname(struct daemon *daemon, char *hostname);
-char *host_from_dns(struct daemon *daemon, struct in_addr addr);
+char *strip_hostname(char *hostname);
+char *host_from_dns(struct in_addr addr);
+char *get_domain(struct in_addr addr);
+#endif
/* lease.c */
-void lease_update_file(struct daemon *daemon, time_t now);
-void lease_update_dns(struct daemon *daemon);
-void lease_init(struct daemon *daemon, time_t now);
+#ifdef HAVE_DHCP
+void lease_update_file(time_t now);
+void lease_update_dns();
+void lease_init(time_t now);
struct dhcp_lease *lease_allocate(struct in_addr addr);
void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr,
unsigned char *clid, int hw_len, int hw_type, int clid_len);
-void lease_set_hostname(struct dhcp_lease *lease, char *name,
- char *suffix, int auth);
+void lease_set_hostname(struct dhcp_lease *lease, char *name, int auth);
void lease_set_expires(struct dhcp_lease *lease, unsigned int len, time_t now);
+void lease_set_interface(struct dhcp_lease *lease, int interface);
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);
void lease_prune(struct dhcp_lease *target, time_t now);
-void lease_update_from_configs(struct daemon *daemon);
-void lease_collect(struct daemon *daemon);
+void lease_update_from_configs(void);
+int do_script_run(time_t now);
+void rerun_scripts(void);
+#endif
/* rfc2131.c */
-size_t dhcp_reply(struct daemon *daemon, struct dhcp_context *context, char *iface_name, size_t sz, time_t now, int unicast_dest);
+#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 *is_inform, int pxe_fd);
+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 daemon *daemon, struct in_addr addr);
-void clear_cache_and_reload(struct daemon *daemon, time_t now);
-
-/* isc.c */
-#ifdef HAVE_ISC_READER
-void load_dhcp(struct daemon *daemon, time_t now);
+int icmp_ping(struct in_addr addr);
#endif
+void send_event(int fd, int event, int data);
+void clear_cache_and_reload(time_t now);
+void poll_resolv(int force, int do_reload, time_t now);
/* netlink.c */
#ifdef HAVE_LINUX_NETWORK
-void netlink_init(struct daemon *daemon);
-int iface_enumerate(struct daemon *daemon, void *parm,
- int (*ipv4_callback)(), int (*ipv6_callback)());
-void netlink_multicast(struct daemon *daemon);
+void netlink_init(void);
+void netlink_multicast(void);
#endif
/* bpf.c */
-#ifndef HAVE_LINUX_NETWORK
-void init_bpf(struct daemon *daemon);
-void send_via_bpf(struct daemon *daemon, struct dhcp_packet *mess, size_t len,
+#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);
-int iface_enumerate(struct daemon *daemon, void *parm,
- int (*ipv4_callback)(), int (*ipv6_callback)());
#endif
+/* bpf.c or netlink.c */
+int iface_enumerate(int family, void *parm, int (callback)());
+
/* dbus.c */
#ifdef HAVE_DBUS
-char *dbus_init(struct daemon *daemon);
-void check_dbus_listeners(struct daemon *daemon,
- fd_set *rset, fd_set *wset, fd_set *eset);
-int set_dbus_listeners(struct daemon *daemon, int maxfd,
- fd_set *rset, fd_set *wset, fd_set *eset);
+char *dbus_init(void);
+void check_dbus_listeners(fd_set *rset, fd_set *wset, fd_set *eset);
+void set_dbus_listeners(int *maxfdp, fd_set *rset, fd_set *wset, fd_set *eset);
+# ifdef HAVE_DHCP
+void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname);
+# endif
+#endif
+
+/* helper.c */
+#if defined(HAVE_DHCP) && !defined(NO_FORK)
+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);
+int helper_buf_empty(void);
+#endif
+
+/* tftp.c */
+#ifdef HAVE_TFTP
+void tftp_request(struct listener *listen, time_t now);
+void check_tftp_listeners(fd_set *rset, time_t now);
#endif
projects / people / ms / dnsmasq.git / blobdiff