#include "cdefs.h"
#include "osdep.h"
#include "dhcp.h"
+#include "statement.h"
#include "tree.h"
#include "hash.h"
#include "inet.h"
char string [1];
};
-/* A string of data bytes, possibly accompanied by a larger buffer. */
-struct data_string {
- unsigned char *data, *buffer;
- int len;
- int terminated;
-};
-
/* A name server, from /etc/resolv.conf. */
struct name_server {
struct name_server *next;
struct lease_state *state;
};
+struct option_state {
+ struct option_cache *dhcp_options [256];
+ struct option_cache *server_options [256];
+ struct agent_options *agent_options;
+};
+
struct lease_state {
struct lease_state *next;
TIME offered_expiry;
- struct tree_cache *options [256];
- struct agent_options *agent_options;
+ struct option_state options;
int max_message_size;
u_int32_t expiry, renewal, rebind;
- char *filename, *server_name;
+ struct data_string filename, server_name;
u_int32_t xid;
u_int16_t secs;
#define DISCOVER_RELAY 3
#define DISCOVER_REQUESTED 4
+/* Server option names. */
+
+#define SV_DEFAULT_LEASE_TIME 1
+#define SV_MAX_LEASE_TIME 2
+#define SV_MIN_LEASE_TIME 3
+#define SV_BOOTP_LEASE_CUTOFF 4
+#define SV_BOOTP_LEASE_LENGTH 5
+#define SV_BOOT_UNKNOWN_CLIENTS 6
+#define SV_DYNAMIC_BOOTP 7
+#define SV_ALLOW_BOOTP 8
+#define SV_ALLOW_BOOTING 9
+#define SV_ONE_LEASE_PER_CLIENT 10
+#define SV_GET_LEASE_HOSTNAMES 11
+#define SV_USE_HOST_DECL_NAMES 12
+#define SV_USE_LEASE_ADDR_FOR_DEFAULT_ROUTE 13
+#define SV_MIN_SECS 14
+#define SV_FILENAME 15
+#define SV_SERVER_NAME 16
+#define SV_NEXT_SERVER 17
+
+#if !defined (DEFAULT_DEFAULT_LEASE_TIME)
+# define DEFAULT_DEFAULT_LEASE_TIME 43200
+#endif
+
+#if !defined (DEFAULT_MIN_LEASE_TIME)
+# define DEFAULT_MIN_LEASE_TIME 43200
+#endif
+
+#if !defined (DEFAULT_MAX_LEASE_TIME)
+# define DEFAULT_MAX_LEASE_TIME 86400
+#endif
+
/* Group of declarations that share common parameters. */
struct group {
struct group *next;
struct subnet *subnet;
struct shared_network *shared_network;
-
- TIME default_lease_time;
- TIME max_lease_time;
- TIME min_lease_time;
- TIME bootp_lease_cutoff;
- TIME bootp_lease_length;
-
- char *filename;
- char *server_name;
- struct iaddr next_server;
-
- int boot_unknown_clients;
- int dynamic_bootp;
- int allow_bootp;
- int allow_booting;
- int one_lease_per_client;
- int get_lease_hostnames;
- int use_host_decl_names;
- int use_lease_addr_for_default_route;
- int min_secs;
-
- struct tree_cache *options [256];
+ struct executable_statement *statements;
};
/* A dhcp host declaration structure. */
struct host_decl *n_ipaddr;
char *name;
struct hardware interface;
- struct tree_cache *fixed_addr;
+ struct data_string client_identifier;
+ struct option_cache *fixed_addr;
struct group *group;
};
struct group *group;
};
-struct match_expr {
- enum {
- match_check,
- match_equal,
- match_substring,
- match_suffix,
- match_and,
- match_or,
- match_not,
- match_option,
- match_hardware,
- match_packet,
- match_const_data,
- match_extract_int8,
- match_extract_int16,
- match_extract_int32,
- match_const_int,
- } op;
- union {
- struct {
- struct match_expr *expr;
- struct match_expr *offset;
- struct match_expr *len;
- } substring;
- struct match_expr *equal [2];
- struct match_expr *and [2];
- struct match_expr *or [2];
- struct match_expr *not;
- struct collection *check;
- struct {
- struct match_expr *expr;
- struct match_expr *len;
- } suffix;
- struct option *option;
- struct {
- struct match_expr *offset;
- struct match_expr *len;
- } packet;
- struct data_string const_data;
- struct {
- struct match_expr *expr;
- struct match_expr *width;
- } extract_int;
- unsigned long const_int;
- } data;
-};
-
-struct classification_rule {
- struct classification_rule *next;
- enum classification_op {
- classify_if,
- classify_eval,
- classify_add,
- classify_break,
- } op;
- union {
- struct {
- struct classification_rule *true, *false;
- struct match_expr *expr;
- } ie;
- struct match_expr *eval;
- struct class *add;
- } data;
-};
-
struct collection {
struct collection *next;
char *name; /* Optional... */
struct hash_table *hash;
- struct match_expr *expr;
- struct match_expr *spawn;
+ struct expression *expr;
+ struct expression *spawn;
struct group *group;
+
+ /* Statements to execute if class matches. */
+ struct executable_statement *statements;
};
/* DHCP client lease structure... */
void parse_option_buffer PROTO ((struct packet *, unsigned char *, int));
int parse_agent_information_option PROTO ((struct packet *, int, u_int8_t *));
int cons_options PROTO ((struct packet *, struct dhcp_packet *, int,
- struct tree_cache **, struct agent_options *,
- int, int, int));
-int store_options PROTO ((unsigned char *, int, struct tree_cache **,
+ struct option_state *, int, int, int));
+int store_options PROTO ((unsigned char *, int, struct option_cache **,
unsigned char *, int, int, int, int));
char *pretty_print_option PROTO ((unsigned int,
unsigned char *, int, int, int));
void do_packet PROTO ((struct interface_info *,
- unsigned char *, int,
+ struct dhcp_packet *, int,
unsigned int, struct iaddr, struct hardware *));
struct data_string dhcp_option_lookup PROTO ((struct packet *, int));
struct data_string agent_suboption_lookup PROTO ((struct packet *, int));
+struct data_string server_option_lookup PROTO ((struct packet *, int));
+void dhcp_option_set PROTO ((struct option_state *, struct option_cache *,
+ enum statement_op));
+void server_option_set PROTO ((struct option_state *, struct option_cache *,
+ enum statement_op));
/* errwarn.c */
extern int warnings_occurred;
void read_leases PROTO ((void));
int parse_statement PROTO ((FILE *,
struct group *, int, struct host_decl *, int));
-void parse_allow_deny PROTO ((FILE *, struct group *, int));
+struct option_cache *parse_allow_deny PROTO ((FILE *, int));
int parse_boolean PROTO ((FILE *));
int parse_lbrace PROTO ((FILE *));
void parse_host_declaration PROTO ((FILE *, struct group *));
void parse_shared_net_declaration PROTO ((FILE *, struct group *));
void parse_subnet_declaration PROTO ((FILE *, struct shared_network *));
void parse_group_declaration PROTO ((FILE *, struct group *));
-struct tree_cache *parse_fixed_addr_param PROTO ((FILE *));
-void parse_option_param PROTO ((FILE *, struct group *));
+struct option_cache *parse_fixed_addr_param PROTO ((FILE *));
TIME parse_timestamp PROTO ((FILE *));
struct lease *parse_lease_declaration PROTO ((FILE *));
void parse_address_range PROTO ((FILE *, struct subnet *));
-struct match_expr *parse_boolean_expression PROTO ((FILE *, int *));
-struct match_expr *parse_data_expression PROTO ((FILE *, int *));
-struct match_expr *parse_numeric_expression PROTO ((FILE *, int *));
/* parse.c */
void skip_to_semi PROTO ((FILE *));
int parse_semi PROTO ((FILE *));
char *parse_string PROTO ((FILE *));
char *parse_host_name PROTO ((FILE *));
-struct tree *parse_ip_addr_or_hostname PROTO ((FILE *, int));
+struct expression *parse_ip_addr_or_hostname PROTO ((FILE *, int));
void parse_hardware_param PROTO ((FILE *, struct hardware *));
void parse_lease_time PROTO ((FILE *, TIME *));
unsigned char *parse_numeric_aggregate PROTO ((FILE *,
TIME parse_date PROTO ((FILE *));
struct option *parse_option_name PROTO ((FILE *));
unsigned char *parse_cshl PROTO ((FILE *, int *));
+struct executable_statement *parse_executable_statement PROTO ((FILE *,
+ int *));
+struct executable_statement *parse_executable_statements PROTO ((FILE *,
+ int *));
+struct executable_statement *parse_if_statement PROTO ((FILE *, int *));
+struct expression *parse_boolean_expression PROTO ((FILE *, int *));
+struct expression *parse_data_expression PROTO ((FILE *, int *));
+struct expression *parse_numeric_expression PROTO ((FILE *, int *));
+struct executable_statement *parse_option_statement PROTO ((FILE *, int,
+ struct option *,
+ enum statement_op)
+ );
+struct expression *parse_option_token PROTO ((FILE *, char *,
+ struct expression *, int, int));
/* tree.c */
pair cons PROTO ((caddr_t, pair));
-struct tree_cache *tree_cache PROTO ((struct tree *));
-struct tree *tree_host_lookup PROTO ((char *));
+struct expression *make_host_lookup PROTO ((char *));
struct dns_host_entry *enter_dns_host PROTO ((char *));
-struct tree *tree_const PROTO ((unsigned char *, int));
-struct tree *tree_concat PROTO ((struct tree *, struct tree *));
-struct tree *tree_limit PROTO ((struct tree *, int));
-int tree_evaluate PROTO ((struct tree_cache *));
+struct expression *make_const_data PROTO ((unsigned char *, int, int, int));
+struct expression *make_concat PROTO ((struct expression *,
+ struct expression *));
+struct expression *make_substring PROTO ((struct expression *,
+ struct expression *,
+ struct expression *));
+struct expression *make_limit PROTO ((struct expression *, int));
+struct option_cache *option_cache PROTO ((struct expression *,
+ struct option *));
+int evaluate_boolean_expression PROTO ((struct packet *, struct expression *));
+struct data_string evaluate_data_expression PROTO ((struct packet *,
+ struct expression *));
+unsigned long evaluate_numeric_expression PROTO ((struct packet *,
+ struct expression *));
/* dhcp.c */
extern int outstanding_pings;
void uid_hash_delete PROTO ((struct lease *));
void hw_hash_add PROTO ((struct lease *));
void hw_hash_delete PROTO ((struct lease *));
-struct class *add_class PROTO ((int, char *));
-struct class *find_class PROTO ((int, char *, int));
struct group *clone_group PROTO ((struct group *, char *));
void write_leases PROTO ((void));
void dump_subnets PROTO ((void));
void dfree PROTO ((VOIDPTR, char *));
struct packet *new_packet PROTO ((char *));
struct dhcp_packet *new_dhcp_packet PROTO ((char *));
-struct tree *new_tree PROTO ((char *));
-struct tree_cache *new_tree_cache PROTO ((char *));
+struct expression *new_expression PROTO ((char *));
+struct option_cache *new_option_cache PROTO ((char *));
struct hash_table *new_hash_table PROTO ((int, char *));
struct hash_bucket *new_hash_bucket PROTO ((char *));
struct lease *new_lease PROTO ((char *));
void free_lease PROTO ((struct lease *, char *));
void free_hash_bucket PROTO ((struct hash_bucket *, char *));
void free_hash_table PROTO ((struct hash_table *, char *));
-void free_tree_cache PROTO ((struct tree_cache *, char *));
+void free_expression PROTO ((struct expression *, char *));
void free_packet PROTO ((struct packet *, char *));
void free_dhcp_packet PROTO ((struct dhcp_packet *, char *));
-void free_tree PROTO ((struct tree *, char *));
+void free_option_cache PROTO ((struct option_cache *, char *));
/* print.c */
char *print_hw_addr PROTO ((int, int, unsigned char *));
extern struct protocol *protocols;
extern int quiet_interface_discovery;
extern void (*bootp_packet_handler) PROTO ((struct interface_info *,
- unsigned char *, int, unsigned int,
- struct iaddr, struct hardware *));
+ struct dhcp_packet *, int,
+ unsigned int,
+ struct iaddr, struct hardware *));
extern struct timeout *timeouts;
void discover_interfaces PROTO ((int));
void reinitialize_interfaces PROTO ((void));
extern struct option dhcp_options [256];
extern struct universe agent_universe;
extern struct option agent_options [256];
+extern struct universe server_universe;
+extern struct option server_options [256];
extern unsigned char dhcp_option_default_priority_list [];
extern int sizeof_dhcp_option_default_priority_list;
extern char *hardware_types [256];
void parse_reject_statement PROTO ((FILE *, struct client_config *));
/* dhcrelay.c */
-void relay PROTO ((struct interface_info *, u_int8_t *, int,
+void relay PROTO ((struct interface_info *, struct dhcp_packet *, int,
unsigned int, struct iaddr, struct hardware *));
/* icmp.c */
struct class known_class;
struct collection default_collection;
struct collection *collections;
-struct classification_rule *default_classification_rules;
-struct named_hash *named_hashes;
-struct named_hash *known_hardware_hash;
+struct executable_statement *default_classification_rules;
void classification_setup PROTO ((void));
void classify_client PROTO ((struct packet *));
-int run_classification_ruleset PROTO ((struct packet *,
- struct classification_rule *));
-int evaluate_match_expression PROTO ((struct packet *, struct match_expr *));
-struct data_string evaluate_data_expression PROTO ((struct packet *,
- struct match_expr *));
-unsigned long evaluate_numeric_expression PROTO ((struct packet *,
- struct match_expr *));
int check_collection PROTO ((struct packet *, struct collection *));
void classify PROTO ((struct packet *, struct class *));
+struct class *find_class PROTO ((char *));
+
+/* execute.c */
+int execute_statements PROTO ((struct packet *, struct option_state *,
+ struct executable_statement *));
+void execute_statements_in_scope PROTO ((struct packet *,
+ struct option_state *,
+ struct group *, struct group *));
projects / thirdparty / dhcp.git / commitdiff
