mirror of
https://github.com/pi-hole/dnsmasq.git
synced 2025-12-19 10:18:25 +00:00
import of dnsmasq-2.40.tar.gz
This commit is contained in:
Simon Kelley
161
src/dnsmasq.h
161
src/dnsmasq.h
@@ -82,6 +82,34 @@ extern int capset(cap_user_header_t header, cap_user_data_t data);
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#include <sys/prctl.h>
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#endif
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/* daemon is function in teh C library.... */
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#define daemon dnsmasq_daemon
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/* Async event queue */
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struct event_desc {
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int event, data;
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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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/* 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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/* Min buffer size: we check after adding each record, so there must be
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memory for the largest packet, and the largest record so the
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min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000.
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@@ -117,6 +145,7 @@ extern int capset(cap_user_header_t header, cap_user_data_t data);
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#define OPT_TFTP_SECURE (1<<26)
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#define OPT_TFTP_NOBLOCK (1<<27)
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#define OPT_LOG_OPTS (1<<28)
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#define OPT_TFTP_APREF (1<<29)
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struct all_addr {
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union {
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@@ -229,15 +258,14 @@ union mysockaddr {
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#define SERV_FROM_RESOLV 1 /* 1 for servers from resolv, 0 for command line. */
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#define SERV_NO_ADDR 2 /* no server, this domain is local only */
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#define SERV_LITERAL_ADDRESS 4 /* addr is the answer, not the server */
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#define SERV_HAS_SOURCE 8 /* source address specified */
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#define SERV_HAS_DOMAIN 16 /* server for one domain only */
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#define SERV_HAS_DOMAIN 8 /* server for one domain only */
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#define SERV_HAS_SOURCE 16 /* source address defined */
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#define SERV_FOR_NODOTS 32 /* server for names with no domain part only */
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#define SERV_WARNED_RECURSIVE 64 /* avoid warning spam */
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#define SERV_FROM_DBUS 128 /* 1 if source is DBus */
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#define SERV_MARK 256 /* for mark-and-delete */
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#define SERV_TYPE (SERV_HAS_DOMAIN | SERV_FOR_NODOTS)
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struct serverfd {
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int fd;
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union mysockaddr source_addr;
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@@ -364,6 +392,7 @@ struct dhcp_config {
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#define CONFIG_FROM_ETHERS 256 /* entry created by /etc/ethers */
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#define CONFIG_ADDR_HOSTS 512 /* address added by from /etc/hosts */
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#define CONFIG_DECLINED 1024 /* address declined by client */
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#define CONFIG_BANK 2048 /* from dhcp hosts file */
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struct dhcp_opt {
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int opt, len, flags;
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@@ -452,6 +481,8 @@ struct ping_result {
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struct tftp_file {
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int refcount, fd;
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off_t size;
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dev_t dev;
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ino_t inode;
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char filename[];
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};
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@@ -466,7 +497,7 @@ struct tftp_transfer {
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struct tftp_transfer *next;
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};
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struct daemon {
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extern struct daemon {
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/* datastuctures representing the command-line and
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config file arguments. All set (including defaults)
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in option.c */
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@@ -500,6 +531,7 @@ struct daemon {
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struct dhcp_mac *dhcp_macs;
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struct dhcp_boot *boot_config;
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struct dhcp_netid_list *dhcp_ignore, *dhcp_ignore_names;
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char *dhcp_hosts_file;
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int dhcp_max, tftp_max;
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unsigned int min_leasetime;
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struct doctor *doctors;
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@@ -542,10 +574,10 @@ struct daemon {
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/* TFTP stuff */
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struct tftp_transfer *tftp_trans;
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char *tftp_prefix;
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};
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} *daemon;
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/* cache.c */
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void cache_init(int cachesize, int log);
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void cache_init(void);
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void log_query(unsigned short flags, char *name, struct all_addr *addr,
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unsigned short type, struct hostsfile *addn_hosts, int index);
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struct crec *cache_find_by_addr(struct crec *crecp,
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@@ -558,9 +590,9 @@ void cache_start_insert(void);
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struct crec *cache_insert(char *name, struct all_addr *addr,
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time_t now, unsigned long ttl, unsigned short flags);
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void cache_reload(int opts, char *buff, char *domain_suffix, struct hostsfile *addn_hosts);
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void cache_add_dhcp_entry(struct daemon *daemon, char *host_name, struct in_addr *host_address, time_t ttd);
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void cache_add_dhcp_entry(char *host_name, struct in_addr *host_address, time_t ttd);
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void cache_unhash_dhcp(void);
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void dump_cache(struct daemon *daemon, time_t now);
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void dump_cache(time_t now);
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char *cache_get_name(struct crec *crecp);
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/* rfc1035.c */
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@@ -569,15 +601,14 @@ unsigned short extract_request(HEADER *header, size_t qlen,
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size_t setup_reply(HEADER *header, size_t qlen,
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struct all_addr *addrp, unsigned short flags,
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unsigned long local_ttl);
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void extract_addresses(HEADER *header, size_t qlen, char *namebuff,
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time_t now, struct daemon *daemon);
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size_t answer_request(HEADER *header, char *limit, size_t qlen, struct daemon *daemon,
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void extract_addresses(HEADER *header, size_t qlen, char *namebuff, time_t now);
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size_t answer_request(HEADER *header, char *limit, size_t qlen,
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struct in_addr local_addr, struct in_addr local_netmask, time_t now);
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int check_for_bogus_wildcard(HEADER *header, size_t qlen, char *name,
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struct bogus_addr *addr, time_t now);
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unsigned char *find_pseudoheader(HEADER *header, size_t plen,
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size_t *len, unsigned char **p, int *is_sign);
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int check_for_local_domain(char *name, time_t now, struct daemon *daemon);
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int check_for_local_domain(char *name, time_t now);
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unsigned int questions_crc(HEADER *header, size_t plen, char *buff);
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size_t resize_packet(HEADER *header, size_t plen,
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unsigned char *pheader, size_t hlen);
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@@ -588,6 +619,7 @@ int legal_char(char c);
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int canonicalise(char *s);
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unsigned char *do_rfc1035_name(unsigned char *p, char *sval);
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void *safe_malloc(size_t size);
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void *whine_malloc(size_t size);
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int sa_len(union mysockaddr *addr);
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int sockaddr_isequal(union mysockaddr *s1, union mysockaddr *s2);
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int hostname_isequal(char *a, char *b);
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@@ -601,49 +633,52 @@ int parse_hex(char *in, unsigned char *out, int maxlen,
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int memcmp_masked(unsigned char *a, unsigned char *b, int len,
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unsigned int mask);
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int expand_buf(struct iovec *iov, size_t size);
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char *print_mac(struct daemon *daemon, unsigned char *mac, int len);
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char *print_mac(char *buff, unsigned char *mac, int len);
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void bump_maxfd(int fd, int *max);
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int read_write(int fd, unsigned char *packet, int size, int rw);
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/* log.c */
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void die(char *message, char *arg1);
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int log_start(struct daemon *daemon);
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void die(char *message, char *arg1, int exit_code);
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void log_start(struct passwd *ent_pw);
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int log_reopen(char *log_file);
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void my_syslog(int priority, const char *format, ...);
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void set_log_writer(fd_set *set, int *maxfdp);
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void check_log_writer(fd_set *set);
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void flush_log(void);
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/* option.c */
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struct daemon *read_opts (int argc, char **argv, char *compile_opts);
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void read_opts (int argc, char **argv, char *compile_opts);
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char *option_string(unsigned char opt);
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void one_file(char *file, int nest, int hosts);
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/* forward.c */
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void reply_query(struct serverfd *sfd, struct daemon *daemon, time_t now);
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void receive_query(struct listener *listen, struct daemon *daemon, time_t now);
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unsigned char *tcp_request(struct daemon *daemon, int confd, time_t now,
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void reply_query(struct serverfd *sfd, time_t now);
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void receive_query(struct listener *listen, time_t now);
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unsigned char *tcp_request(int confd, time_t now,
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struct in_addr local_addr, struct in_addr netmask);
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void server_gone(struct daemon *daemon, struct server *server);
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struct frec *get_new_frec(struct daemon *daemon, time_t now, int *wait);
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void server_gone(struct server *server);
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struct frec *get_new_frec(time_t now, int *wait);
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/* network.c */
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struct serverfd *allocate_sfd(union mysockaddr *addr, struct serverfd **sfds);
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int reload_servers(char *fname, struct daemon *daemon);
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void check_servers(struct daemon *daemon);
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int enumerate_interfaces(struct daemon *daemon);
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struct listener *create_wildcard_listeners(int port, int have_tftp);
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struct listener *create_bound_listeners(struct daemon *daemon);
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int iface_check(struct daemon *daemon, int family, struct all_addr *addr,
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int reload_servers(char *fname);
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void check_servers(void);
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int enumerate_interfaces();
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struct listener *create_wildcard_listeners(void);
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struct listener *create_bound_listeners(void);
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int iface_check(int family, struct all_addr *addr,
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struct ifreq *ifr, int *indexp);
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int fix_fd(int fd);
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struct in_addr get_ifaddr(struct daemon* daemon, char *intr);
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struct in_addr get_ifaddr(char *intr);
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/* dhcp.c */
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void dhcp_init(struct daemon *daemon);
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void dhcp_packet(struct daemon *daemon, time_t now);
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void dhcp_init(void);
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void dhcp_packet(time_t now);
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struct dhcp_context *address_available(struct dhcp_context *context, struct in_addr addr);
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struct dhcp_context *narrow_context(struct dhcp_context *context, struct in_addr taddr);
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int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly);
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int address_allocate(struct dhcp_context *context, struct daemon *daemon,
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int address_allocate(struct dhcp_context *context,
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struct in_addr *addrp, unsigned char *hwaddr, int hw_len,
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struct dhcp_netid *netids, time_t now);
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struct dhcp_config *find_config(struct dhcp_config *configs,
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@@ -652,15 +687,16 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
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unsigned char *hwaddr, int hw_len,
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int hw_type, char *hostname);
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void dhcp_update_configs(struct dhcp_config *configs);
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void dhcp_read_ethers(struct daemon *daemon);
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void dhcp_read_ethers(void);
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void dhcp_read_hosts(void);
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struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr);
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char *strip_hostname(struct daemon *daemon, char *hostname);
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char *host_from_dns(struct daemon *daemon, struct in_addr addr);
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char *strip_hostname(char *hostname);
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char *host_from_dns(struct in_addr addr);
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/* lease.c */
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void lease_update_file(struct daemon *daemon, time_t now);
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void lease_update_dns(struct daemon *daemon);
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void lease_init(struct daemon *daemon, time_t now);
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void lease_update_file(time_t now);
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void lease_update_dns();
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void lease_init(time_t now);
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struct dhcp_lease *lease_allocate(struct in_addr addr);
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void lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr,
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unsigned char *clid, int hw_len, int hw_type, int clid_len);
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@@ -671,57 +707,58 @@ struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr, int hw_len, int h
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unsigned char *clid, int clid_len);
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struct dhcp_lease *lease_find_by_addr(struct in_addr addr);
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void lease_prune(struct dhcp_lease *target, time_t now);
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void lease_update_from_configs(struct daemon *daemon);
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int do_script_run(struct daemon *daemon);
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void lease_update_from_configs(void);
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int do_script_run(time_t now);
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void rerun_scripts(void);
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/* rfc2131.c */
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size_t dhcp_reply(struct daemon *daemon, struct dhcp_context *context, char *iface_name, size_t sz, time_t now, int unicast_dest);
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size_t dhcp_reply(struct dhcp_context *context, char *iface_name,
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size_t sz, time_t now, int unicast_dest, int *is_inform);
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/* dnsmasq.c */
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int make_icmp_sock(void);
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int icmp_ping(struct daemon *daemon, struct in_addr addr);
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void clear_cache_and_reload(struct daemon *daemon, time_t now);
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int icmp_ping(struct in_addr addr);
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void send_event(int fd, int event, int data);
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void clear_cache_and_reload(time_t now);
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/* isc.c */
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#ifdef HAVE_ISC_READER
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void load_dhcp(struct daemon *daemon, time_t now);
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void load_dhcp(time_t now);
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#endif
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/* netlink.c */
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#ifdef HAVE_LINUX_NETWORK
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void netlink_init(struct daemon *daemon);
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int iface_enumerate(struct daemon *daemon, void *parm,
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int (*ipv4_callback)(), int (*ipv6_callback)());
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void netlink_multicast(struct daemon *daemon);
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void netlink_init(void);
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int iface_enumerate(void *parm, int (*ipv4_callback)(), int (*ipv6_callback)());
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void netlink_multicast(void);
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#endif
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/* bpf.c */
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#ifndef HAVE_LINUX_NETWORK
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void init_bpf(struct daemon *daemon);
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void send_via_bpf(struct daemon *daemon, struct dhcp_packet *mess, size_t len,
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void init_bpf(void);
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void send_via_bpf(struct dhcp_packet *mess, size_t len,
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struct in_addr iface_addr, struct ifreq *ifr);
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int iface_enumerate(struct daemon *daemon, void *parm,
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int (*ipv4_callback)(), int (*ipv6_callback)());
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int iface_enumerate(void *parm, int (*ipv4_callback)(), int (*ipv6_callback)());
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#endif
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/* dbus.c */
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#ifdef HAVE_DBUS
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char *dbus_init(struct daemon *daemon);
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void check_dbus_listeners(struct daemon *daemon,
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fd_set *rset, fd_set *wset, fd_set *eset);
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void set_dbus_listeners(struct daemon *daemon, int *maxfdp,
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fd_set *rset, fd_set *wset, fd_set *eset);
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char *dbus_init(void);
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void check_dbus_listeners(fd_set *rset, fd_set *wset, fd_set *eset);
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void set_dbus_listeners(int *maxfdp, fd_set *rset, fd_set *wset, fd_set *eset);
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#endif
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/* helper.c */
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int create_helper(struct daemon *daemon, int log_fd);
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void helper_write(struct daemon *daemon);
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void queue_script(struct daemon *daemon, int action,
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struct dhcp_lease *lease, char *hostname);
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#ifndef NO_FORK
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int create_helper(int log_fd, long max_fd);
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void helper_write(void);
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void queue_script(int action, struct dhcp_lease *lease,
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char *hostname, time_t now);
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int helper_buf_empty(void);
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#endif
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/* tftp.c */
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#ifdef HAVE_TFTP
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void tftp_request(struct listener *listen, struct daemon *daemon, time_t now);
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void check_tftp_listeners(struct daemon *daemon, fd_set *rset, time_t now);
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void tftp_request(struct listener *listen, time_t now);
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void check_tftp_listeners(fd_set *rset, time_t now);
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#endif
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