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import of dnsmasq-2.27.tar.gz

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This commit is contained in:
Simon Kelley
2006-03-16 20:16:06 +00:00
parent aedef83058
commit cdeda28f82
27 changed files with 2427 additions and 1966 deletions
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95
src/dnsmasq.h
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@@ -92,13 +92,8 @@
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.
The buffer is also used for NETLINK, which needs to be about 2000
on systems with many interfaces/addresses. */
#ifdef HAVE_RTNETLINK
# define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ
#else
# define DNSMASQ_PACKETSZ 2000
#endif
*/
#define DNSMASQ_PACKETSZ PACKETSZ+MAXDNAME+RRFIXEDSZ
#define OPT_BOGUSPRIV 1
#define OPT_FILTER 2
@@ -197,7 +192,7 @@ struct crec {
#define F_NOERR 32768
/* struct sockaddr is not large enough to hold any address,
and specifically not big enough to hold and IPv6 address.
and specifically not big enough to hold an IPv6 address.
Blech. Roll our own. */
union mysockaddr {
struct sockaddr sa;
@@ -278,7 +273,7 @@ struct resolvc {
struct hostsfile {
struct hostsfile *next;
char *fname;
int index; /* matches to cache entries fro logging */
int index; /* matches to cache entries for logging */
};
struct frec {
@@ -293,13 +288,16 @@ struct frec {
struct frec *next;
};
#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 */
int auth_name; /* hostname came from config, not from client */
time_t expires; /* lease expiry */
unsigned char hwaddr[ETHER_ADDR_LEN];
int hwaddr_len, hwaddr_type;
unsigned char hwaddr[DHCP_CHADDR_MAX];
struct in_addr addr;
struct dhcp_lease *next;
};
@@ -317,7 +315,8 @@ struct dhcp_config {
unsigned int flags;
int clid_len; /* length of client identifier */
unsigned char *clid; /* clientid */
unsigned char hwaddr[ETHER_ADDR_LEN];
int hwaddr_len, hwaddr_type;
unsigned char hwaddr[DHCP_CHADDR_MAX];
char *hostname;
struct dhcp_netid netid;
struct in_addr addr;
@@ -335,12 +334,15 @@ struct dhcp_config {
#define CONFIG_NOCLID 128
struct dhcp_opt {
int opt, len, is_addr;
int opt, len, flags;
unsigned char *val, *vendor_class;
struct dhcp_netid *netid;
struct dhcp_opt *next;
};
#define DHOPT_ADDR 1
#define DHOPT_STRING 2
struct dhcp_boot {
char *file, *sname;
struct in_addr next_server;
@@ -355,20 +357,27 @@ struct dhcp_vendor {
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_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;
struct dhcp_netid netid, *filter;
struct dhcp_context *next, *current;
};
#define CONTEXT_STATIC 1
#define CONTEXT_FILTER 2
#define CONTEXT_NETMASK 4
#define CONTEXT_BRDCAST 8
#define CONTEXT_NETMASK 2
#define CONTEXT_BRDCAST 4
typedef unsigned char u8;
@@ -389,7 +398,7 @@ struct udp_dhcp_packet {
u32 xid;
u16 secs, flags;
struct in_addr ciaddr, yiaddr, siaddr, giaddr;
u8 chaddr[16], sname[64], file[128];
u8 chaddr[DHCP_CHADDR_MAX], sname[64], file[128];
u8 options[312];
} data;
};
@@ -425,6 +434,7 @@ struct daemon {
struct dhcp_config *dhcp_conf;
struct dhcp_opt *dhcp_opts, *vendor_opts;
struct dhcp_vendor *dhcp_vendors;
struct dhcp_mac *dhcp_macs;
struct dhcp_boot *boot_config;
struct dhcp_netid_list *dhcp_ignore;
int dhcp_max;
@@ -440,16 +450,19 @@ struct daemon {
struct irec *interfaces;
struct listener *listeners;
struct server *last_server;
struct server *srv_save; /* Used for resend on DoD */
size_t packet_len; /* " " */
int uptime_fd;
/* DHCP state */
int dhcpfd, dhcp_raw_fd, dhcp_icmp_fd, lease_fd;
int dhcpfd, dhcp_raw_fd, dhcp_icmp_fd;
#ifdef HAVE_RTNETLINK
int netlinkfd;
#endif
struct udp_dhcp_packet *dhcp_packet;
char *dhcp_buff, *dhcp_buff2;
struct ping_result *ping_results;
FILE *lease_stream;
/* DBus stuff */
#ifdef HAVE_DBUS
@@ -480,23 +493,23 @@ void dump_cache(struct daemon *daemon);
char *cache_get_name(struct crec *crecp);
/* rfc1035.c */
unsigned short extract_request(HEADER *header, unsigned int qlen,
unsigned short extract_request(HEADER *header, size_t qlen,
char *name, unsigned short *typep);
int setup_reply(HEADER *header, unsigned int qlen,
struct all_addr *addrp, unsigned short flags,
unsigned long local_ttl);
void extract_addresses(HEADER *header, unsigned int qlen, char *namebuff,
size_t setup_reply(HEADER *header, size_t qlen,
struct all_addr *addrp, unsigned short flags,
unsigned long local_ttl);
void extract_addresses(HEADER *header, size_t qlen, char *namebuff,
time_t now, struct daemon *daemon);
int answer_request(HEADER *header, char *limit, unsigned int qlen, struct daemon *daemon,
size_t answer_request(HEADER *header, char *limit, size_t qlen, struct daemon *daemon,
struct in_addr local_addr, struct in_addr local_netmask, time_t now);
int check_for_bogus_wildcard(HEADER *header, unsigned int qlen, char *name,
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, unsigned int plen,
unsigned int *len, unsigned char **p);
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, unsigned int plen, char *buff);
int resize_packet(HEADER *header, unsigned int plen,
unsigned char *pheader, unsigned int hlen);
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 */
unsigned short rand16(void);
@@ -515,7 +528,7 @@ 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);
unsigned int *wildcard_mask, int *mac_type);
/* option.c */
struct daemon *read_opts (int argc, char **argv, char *compile_opts);
@@ -542,14 +555,15 @@ 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);
int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool);
int match_netid(struct dhcp_netid *check, struct dhcp_netid *pool, int negonly);
int address_allocate(struct dhcp_context *context, struct daemon *daemon,
struct in_addr *addrp, unsigned char *hwaddr,
struct in_addr *addrp, unsigned char *hwaddr, int hw_len,
struct dhcp_netid *netids, time_t now);
struct dhcp_config *find_config(struct dhcp_config *configs,
struct dhcp_context *context,
unsigned char *clid, int clid_len,
unsigned char *hwaddr, char *hostname);
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);
struct dhcp_config *config_find_by_address(struct dhcp_config *configs, struct in_addr addr);
@@ -561,24 +575,24 @@ struct dhcp_context *complete_context(struct daemon *daemon, struct in_addr loca
struct in_addr primary);
/* lease.c */
void lease_update_file(int force, time_t now);
void lease_update_file(struct daemon *daemon, int force, time_t now);
void lease_update_dns(struct daemon *daemon);
void lease_init(struct daemon *daemon, time_t now);
struct dhcp_lease *lease_allocate(unsigned char *hwaddr, unsigned char *clid,
int clid_len, struct in_addr addr);
int hw_len, int hw_type, int clid_len, struct in_addr addr);
int lease_set_hwaddr(struct dhcp_lease *lease, unsigned char *hwaddr,
unsigned char *clid, int clid_len);
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_expires(struct dhcp_lease *lease, time_t exp);
struct dhcp_lease *lease_find_by_client(unsigned char *hwaddr,
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);
/* rfc2131.c */
int dhcp_reply(struct daemon *daemon, struct dhcp_context *context, char *iface_name, unsigned int sz, time_t now, int unicast_dest);
size_t dhcp_reply(struct daemon *daemon, struct dhcp_context *context, char *iface_name, size_t sz, time_t now, int unicast_dest);
/* dnsmasq.c */
int icmp_ping(struct daemon *daemon, struct in_addr addr);
@@ -591,10 +605,11 @@ void load_dhcp(struct daemon *daemon, time_t now);
/* netlink.c */
#ifdef HAVE_RTNETLINK
int netlink_init(void);
void netlink_init(struct daemon *daemon);
int netlink_process(struct daemon *daemon, int index,
struct in_addr relay, struct in_addr primary,
struct dhcp_context **retp);
void netlink_multicast(struct daemon *daemon);
#endif
/* dbus.c */