summaryrefslogtreecommitdiffstats
path: root/src/dnsmasq.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/dnsmasq.h')
-rwxr-xr-xsrc/dnsmasq.h885
1 files changed, 885 insertions, 0 deletions
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
new file mode 100755
index 0000000..e84ea85
--- /dev/null
+++ b/src/dnsmasq.h
@@ -0,0 +1,885 @@
+/* dnsmasq is Copyright (c) 2000-2009 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, 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) 2000-2009 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. */
+#ifdef __linux__
+# define _GNU_SOURCE
+# include <features.h>
+#endif
+
+/* get these before config.h for IPv6 stuff... */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#ifdef __APPLE__
+# include <nameser.h>
+# include <arpa/nameser_compat.h>
+#else
+# include <arpa/nameser.h>
+#endif
+
+/* and this. */
+#include <getopt.h>
+
+#include "config.h"
+
+#define gettext_noop(S) (S)
+#ifndef LOCALEDIR
+# define _(S) (S)
+#else
+# include <libintl.h>
+# include <locale.h>
+# define _(S) gettext(S)
+#endif
+
+#include <arpa/inet.h>
+#include <sys/stat.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>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.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__) || defined(__sun__) || defined (__sun)
+# include <netinet/if_ether.h>
+#else
+# include <net/ethernet.h>
+#endif
+#include <net/if_arp.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_icmp.h>
+#include <sys/uio.h>
+#include <syslog.h>
+#include <dirent.h>
+#ifndef HAVE_LINUX_NETWORK
+# include <net/if_dl.h>
+#endif
+
+#if defined(HAVE_LINUX_NETWORK)
+#include <linux/capability.h>
+/* There doesn't seem to be a universally-available
+ 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.
+ This might be increased is EDNS packet size if greater than the minimum.
+*/
+#define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ
+
+#define OPT_BOGUSPRIV (1u<<0)
+#define OPT_FILTER (1u<<1)
+#define OPT_LOG (1u<<2)
+#define OPT_SELFMX (1u<<3)
+#define OPT_NO_HOSTS (1u<<4)
+#define OPT_NO_POLL (1u<<5)
+#define OPT_DEBUG (1u<<6)
+#define OPT_ORDER (1u<<7)
+#define OPT_NO_RESOLV (1u<<8)
+#define OPT_EXPAND (1u<<9)
+#define OPT_LOCALMX (1u<<10)
+#define OPT_NO_NEG (1u<<11)
+#define OPT_NODOTS_LOCAL (1u<<12)
+#define OPT_NOWILD (1u<<13)
+#define OPT_ETHERS (1u<<14)
+#define OPT_RESOLV_DOMAIN (1u<<15)
+#define OPT_NO_FORK (1u<<16)
+#define OPT_AUTHORITATIVE (1u<<17)
+#define OPT_LOCALISE (1u<<18)
+#define OPT_DBUS (1u<<19)
+#define OPT_DHCP_FQDN (1u<<20)
+#define OPT_NO_PING (1u<<21)
+#define OPT_LEASE_RO (1u<<22)
+#define OPT_ALL_SERVERS (1u<<23)
+#define OPT_RELOAD (1u<<24)
+#define OPT_TFTP (1u<<25)
+#define OPT_TFTP_SECURE (1u<<26)
+#define OPT_TFTP_NOBLOCK (1u<<27)
+#define OPT_LOG_OPTS (1u<<28)
+#define OPT_TFTP_APREF (1u<<29)
+#define OPT_NO_OVERRIDE (1u<<30)
+#define OPT_NO_REBIND (1u<<31)
+
+/* 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 {
+ struct in_addr addr4;
+#ifdef HAVE_IPV6
+ struct in6_addr addr6;
+#endif
+ } addr;
+};
+
+struct bogus_addr {
+ struct in_addr addr;
+ struct bogus_addr *next;
+};
+
+/* dns doctor param */
+struct doctor {
+ struct in_addr in, end, out, mask;
+ struct doctor *next;
+};
+
+struct mx_srv_record {
+ char *name, *target;
+ int issrv, srvport, priority, weight;
+ unsigned int offset;
+ 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;
+ 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 */
+};
+
+struct crec {
+ struct crec *next, *prev, *hash_next;
+ time_t ttd; /* time to die */
+ int uid;
+ union {
+ struct all_addr addr;
+ struct {
+ struct crec *cache;
+ int uid;
+ } cname;
+ } addr;
+ unsigned short flags;
+ union {
+ char sname[SMALLDNAME];
+ union bigname *bname;
+ char *namep;
+ } 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
+
+/* 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;
+#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_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 */
+
+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;
+ 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 dhcp_ok, mtu;
+ struct irec *next;
+};
+
+struct listener {
+ int fd, tcpfd, tftpfd, family;
+ struct irec *iface; /* only valid for non-wildcard */
+ struct listener *next;
+};
+
+/* interface and address parms from command line. */
+struct iname {
+ char *name;
+ union mysockaddr addr;
+ int isloop, used;
+ struct iname *next;
+};
+
+/* resolv-file parms from command-line */
+struct resolvc {
+ struct resolvc *next;
+ int is_default, logged;
+ time_t mtime;
+ char *name;
+};
+
+/* adn-hosts parms from command-line */
+#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 */
+};
+
+struct frec {
+ union mysockaddr source;
+ struct all_addr dest;
+ 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;
+ unsigned int crc;
+ time_t time;
+ struct frec *next;
+};
+
+/* actions in the daemon->helper RPC */
+#define ACTION_DEL 1
+#define ACTION_OLD_HOSTNAME 2
+#define ACTION_OLD 3
+#define ACTION_ADD 4
+
+#define DHCP_CHADDR_MAX 16
+
+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 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, override, giaddr;
+ unsigned char *vendorclass, *userclass, *supplied_hostname;
+ unsigned int vendorclass_len, userclass_len, supplied_hostname_len;
+ int last_interface;
+ 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 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 netid;
+ struct in_addr addr;
+ time_t decline_time;
+ unsigned int lease_time;
+ struct hwaddr_config *hwaddr;
+ struct dhcp_config *next;
+};
+
+#define CONFIG_DISABLE 1
+#define CONFIG_CLID 2
+#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;
+ 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
+
+struct dhcp_boot {
+ char *file, *sname;
+ struct in_addr next_server;
+ struct dhcp_netid *netid;
+ 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, match_type, option;
+ char *data;
+ struct dhcp_netid netid;
+ struct dhcp_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;
+ 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;
+ 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
+
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+
+
+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 ping_result {
+ struct in_addr addr;
+ time_t time;
+ 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;
+ struct sockaddr_in peer;
+ char opt_blocksize, opt_transize, netascii, carrylf;
+ struct tftp_file *file;
+ struct tftp_transfer *next;
+};
+
+extern struct daemon {
+ /* datastuctures representing the command-line and
+ config file arguments. All set (including defaults)
+ in option.c */
+
+ unsigned int options;
+ 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, *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 */
+ 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;
+ struct hostsfile *addn_hosts;
+ struct dhcp_context *dhcp;
+ struct dhcp_config *dhcp_conf;
+ struct dhcp_opt *dhcp_opts, *dhcp_match;
+ struct dhcp_vendor *dhcp_vendors;
+ struct dhcp_mac *dhcp_macs;
+ struct dhcp_boot *boot_config;
+ struct pxe_service *pxe_services;
+ int enable_pxe;
+ struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names, *force_broadcast, *bootp_dynamic;
+ char *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;
+
+ /* 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; /* " " */
+ struct randfd *rfd_save; /* " " */
+ pid_t tcp_pids[MAX_PROCS];
+ struct randfd randomsocks[RANDOM_SOCKS];
+
+ /* DHCP state */
+ int dhcpfd, helperfd;
+#if defined(HAVE_LINUX_NETWORK)
+ int netlinkfd;
+#elif defined(HAVE_BSD_NETWORK)
+ int dhcp_raw_fd, dhcp_icmp_fd;
+#endif
+ struct iovec dhcp_packet;
+ char *dhcp_buff, *dhcp_buff2;
+ struct ping_result *ping_results;
+ FILE *lease_stream;
+ struct dhcp_bridge *bridges;
+
+ /* DBus stuff */
+ /* 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(void);
+void log_query(unsigned short 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);
+struct crec *cache_find_by_name(struct crec *crecp,
+ char *name, time_t now, unsigned short prot);
+void cache_end_insert(void);
+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(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(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,
+ char *name, unsigned short *typep);
+size_t setup_reply(HEADER *header, size_t qlen,
+ struct all_addr *addrp, unsigned short flags,
+ unsigned long local_ttl);
+int extract_addresses(HEADER *header, size_t qlen, char *namebuff, time_t now);
+size_t answer_request(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,
+ struct bogus_addr *addr, time_t now);
+unsigned char *find_pseudoheader(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(HEADER *header, size_t plen, char *buff);
+size_t resize_packet(HEADER *header, size_t plen,
+ unsigned char *pheader, size_t hlen);
+
+/* util.c */
+void rand_init(void);
+unsigned short rand16(void);
+int legal_hostname(char *c);
+char *canonicalise(char *s, int *nomem);
+unsigned char *do_rfc1035_name(unsigned char *p, char *sval);
+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);
+time_t dnsmasq_time(void);
+int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask);
+int retry_send(void);
+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);
+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 */
+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);
+
+/* forward.c */
+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 server *server);
+struct frec *get_new_frec(time_t now, int *wait);
+
+/* network.c */
+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 */
+#ifdef HAVE_DHCP
+void dhcp_init(void);
+void dhcp_packet(time_t now);
+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 in_addr *addrp, unsigned char *hwaddr, int hw_len,
+ struct dhcp_netid *netids, time_t now);
+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(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(char *hostname);
+char *host_from_dns(struct in_addr addr);
+char *get_domain(struct in_addr addr);
+#endif
+
+/* lease.c */
+#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, 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(void);
+int do_script_run(time_t now);
+void rerun_scripts(void);
+#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 *is_inform);
+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);
+#endif
+void send_event(int fd, int event, int data);
+void clear_cache_and_reload(time_t now);
+
+/* netlink.c */
+#ifdef HAVE_LINUX_NETWORK
+void 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);
+#endif
+
+/* bpf.c or netlink.c */
+int iface_enumerate(void *parm, int (*ipv4_callback)(), int (*ipv6_callback)());
+
+/* dbus.c */
+#ifdef HAVE_DBUS
+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);
+void emit_dbus_signal(int action, struct dhcp_lease *lease, char *hostname);
+#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
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 13:10:10 +0000