#include "inet.h"
#include "sysconf.h"
+#if !defined (OPTION_HASH_SIZE)
+# define OPTION_HASH_SIZE 17
+#endif
+
struct string_list {
struct string_list *next;
char string [1];
struct option_tag *first;
};
-/* The data associated with a given option in an array of options. */
+struct option_cache {
+ int refcnt;
+ struct option_cache *next;
+ struct expression *expression;
+ struct option *option;
+ struct data_string data;
+};
-struct option_data {
- int len;
- u_int8_t *data;
+struct option_state {
+ pair dhcp_hash [OPTION_HASH_SIZE];
+ pair server_hash [OPTION_HASH_SIZE];
+ struct agent_options *agent_options;
};
/* A dhcp packet and the pointers to its option values. */
struct hardware *haddr; /* Physical link address
of local sender (maybe gateway). */
struct shared_network *shared_network;
- struct option_data options [256];
- struct agent_options *agent_options; /* Received agent options. */
+ struct option_state options;
#if !defined (PACKET_MAX_CLASSES)
# define PACKET_MAX_CLASSES 5
# define BOOTP_LEASE 2
# define DYNAMIC_BOOTP_OK 4
# define PERSISTENT_FLAGS (DYNAMIC_BOOTP_OK)
-# define EPHEMERAL_FLAGS (BOOTP_LEASE)
# define MS_NULL_TERMINATION 8
# define ABANDONED_LEASE 16
+# define EPHEMERAL_FLAGS (BOOTP_LEASE | MS_NULL_TERMINATION | \
+ ABANDONED_LEASE)
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;
struct in_addr giaddr;
u_int8_t hops;
u_int8_t offer;
+ struct iaddr from;
};
#define ROOT_GROUP 0
# define DEFAULT_MAX_LEASE_TIME 86400
#endif
+/* Client option names */
+
+#define CL_TIMEOUT 1
+#define CL_SELECT_INTERVAL 2
+#define CL_REBOOT_TIMEOUT 3
+#define CL_RETRY_INTERVAL 4
+#define CL_BACKOFF_CUTOFF 5
+#define CL_INITIAL_INTERVAL 6
+#define CL_BOOTP_POLICY 7
+#define CL_SCRIPT_NAME 8
+#define CL_REQUESTED_OPTIONS 9
+#define CL_REQUESTED_LEASE_TIME 10
+#define CL_SEND_OPTIONS 11
+#define CL_MEDIA 12
+#define CL_REJECT_LIST 13
+
+#ifndef CL_DEFAULT_TIMEOUT
+# define CL_DEFAULT_TIMEOUT 60
+#endif
+
+#ifndef CL_DEFAULT_SELECT_INTERVAL
+# define CL_DEFAULT_SELECT_INTERVAL 0
+#endif
+
+#ifndef CL_DEFAULT_REBOOT_TIMEOUT
+# define CL_DEFAULT_REBOOT_TIMEOUT 10
+#endif
+
+#ifndef CL_DEFAULT_RETRY_INTERVAL
+# define CL_DEFAULT_RETRY_INTERVAL 300
+#endif
+
+#ifndef CL_DEFAULT_BACKOFF_CUTOFF
+# define CL_DEFAULT_BACKOFF_CUTOFF 120
+#endif
+
+#ifndef CL_DEFAULT_INITIAL_INTERVAL
+# define CL_DEFAULT_INITIAL_INTERVAL 10
+#endif
+
+#ifndef CL_DEFAULT_BOOTP_POLICY
+# define CL_DEFAULT_BOOTP_POLICY ACCEPT
+#endif
+
+#ifndef CL_DEFAULT_SCRIPT_NAME
+# define CL_DEFAULT_SCRIPT_NAME "/etc/dhclient-script"
+#endif
+
+#ifndef CL_DEFAULT_REQUESTED_OPTIONS
+# define CL_DEFAULT_REQUESTED_OPTIONS \
+ { DHO_SUBNET_MASK, \
+ DHO_BROADCAST_ADDRESS, \
+ DHO_TIME_OFFSET, \
+ DHO_ROUTERS, \
+ DHO_DOMAIN_NAME, \
+ DHO_DOMAIN_NAME_SERVERS, \
+ DHO_HOST_NAME }
+#endif
+
/* Group of declarations that share common parameters. */
struct group {
struct group *next;
unsigned int is_static : 1; /* If set, lease is from config file. */
unsigned int is_bootp: 1; /* If set, lease was aquired with BOOTP. */
- struct option_data options [256]; /* Options supplied with lease. */
+ struct option_state options; /* Options supplied with lease. */
};
/* Possible states in which the client can be. */
/* Configuration information from the config file... */
struct client_config {
- struct option_data defaults [256]; /* Default values for options. */
- enum {
- ACTION_DEFAULT, /* Use server value if present,
- otherwise default. */
- ACTION_SUPERSEDE, /* Always use default. */
- ACTION_PREPEND, /* Prepend default to server. */
- ACTION_APPEND, /* Append default to server. */
- } default_actions [256];
-
- struct option_data send_options [256]; /* Send these to server. */
- u_int8_t required_options [256]; /* Options server must supply. */
- u_int8_t requested_options [256]; /* Options to request from server. */
- int requested_option_count; /* Number of requested options. */
+ /*
+ * When a message has been received, run these statements
+ * over it.
+ */
+ struct executable_statement *on_receipt;
+
+ /*
+ * When a message is sent, run these statements.
+ */
+ struct executable_statement *on_transmission;
+
+ u_int32_t *required_options; /* Options server must supply. */
+ u_int32_t *requested_options; /* Options to request from server. */
+
TIME timeout; /* Start to panic if we don't get a
lease in this time period when
SELECTING. */
TIME backoff_cutoff; /* When doing exponential backoff,
never back off to an interval
longer than this amount. */
+ u_int32_t requested_lease; /* Requested lease time, if user
+ doesn't configure one. */
struct string_list *media; /* Possible network media values. */
char *script_name; /* Name of config script. */
enum { IGNORE, ACCEPT, PREFER } bootp_policy;
struct string_list *medium; /* Current network medium. */
struct iaddrlist *reject_list; /* Servers to reject. */
+
+ struct option_state send_options; /* Options to send. */
};
/* Per-interface state used in the dhcp client... */
TIME first_sending; /* When was first copy sent? */
TIME interval; /* What's the current resend interval? */
struct string_list *medium; /* Last media type tried. */
-
struct dhcp_packet packet; /* Outgoing DHCP packet. */
int packet_length; /* Actual length of generated packet. */
struct iaddr requested_address; /* Address we would like to get. */
- struct client_config *config; /* Information from config file. */
+ struct client_config *config; /* Client configuration. */
};
/* Information about each network interface. */
/* options.c */
-void parse_options PROTO ((struct packet *));
-void parse_option_buffer PROTO ((struct packet *, unsigned char *, int));
+int parse_options PROTO ((struct packet *));
+int 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 option_state *, int, int, int));
-int store_options PROTO ((unsigned char *, int, struct option_cache **,
- unsigned char *, int, int, int, int));
+int store_options PROTO ((unsigned char *, int, struct option_state *,
+ int *, int, int, int, int));
char *pretty_print_option PROTO ((unsigned int,
unsigned char *, int, int, int));
void do_packet PROTO ((struct interface_info *,
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));
+int dhcp_option_lookup PROTO ((struct data_string *,
+ struct option_state *, int));
+int agent_suboption_lookup PROTO ((struct data_string *,
+ struct option_state *, int));
+int server_option_lookup PROTO ((struct data_string *,
+ struct option_state *, 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));
+struct option_cache *lookup_option PROTO ((pair *, int));
+void save_option PROTO ((pair *, struct option_cache *));
+void delete_option PROTO ((pair *, int));
+int option_cache_dereference PROTO ((struct option_cache **, char *));
/* errwarn.c */
extern int warnings_occurred;
void read_leases PROTO ((void));
int parse_statement PROTO ((FILE *,
struct group *, int, struct host_decl *, int));
-struct option_cache *parse_allow_deny PROTO ((FILE *, int));
+int parse_allow_deny PROTO ((struct option_cache **, 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 option_cache *parse_fixed_addr_param PROTO ((FILE *));
+int parse_fixed_addr_param PROTO ((struct option_cache **, FILE *));
TIME parse_timestamp PROTO ((FILE *));
struct lease *parse_lease_declaration PROTO ((FILE *));
void parse_address_range PROTO ((FILE *, struct subnet *));
int parse_semi PROTO ((FILE *));
char *parse_string PROTO ((FILE *));
char *parse_host_name PROTO ((FILE *));
-struct expression *parse_ip_addr_or_hostname PROTO ((FILE *, int));
+int parse_ip_addr_or_hostname PROTO ((struct expression **, FILE *, int));
void parse_hardware_param PROTO ((FILE *, struct hardware *));
void parse_lease_time PROTO ((FILE *, TIME *));
unsigned char *parse_numeric_aggregate PROTO ((FILE *,
void convert_num PROTO ((unsigned char *, char *, int, int));
TIME parse_date PROTO ((FILE *));
struct option *parse_option_name PROTO ((FILE *));
-unsigned char *parse_cshl PROTO ((FILE *, int *));
+int parse_cshl PROTO ((struct data_string *, FILE *));
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 *));
+int parse_boolean_expression PROTO ((struct expression **, FILE *, int *));
+int parse_data_expression PROTO ((struct expression **, FILE *, int *));
+int parse_numeric_expression PROTO ((struct expression **, FILE *, int *));
+int parse_non_binary PROTO ((struct expression **, FILE *, int *,
+ enum expression_context));
+int parse_expression PROTO ((struct expression **, FILE *, int *,
+ enum expression_context,
+ struct expression **, enum expr_op));
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));
+int parse_option_token PROTO ((struct expression **, FILE *, char *,
+ struct expression *, int, int));
/* tree.c */
pair cons PROTO ((caddr_t, pair));
-struct expression *make_host_lookup PROTO ((char *));
-struct dns_host_entry *enter_dns_host PROTO ((char *));
-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 *));
+int make_const_option_cache PROTO ((struct option_cache **, struct buffer **,
+ u_int8_t *, int, struct option *, char *));
+int make_host_lookup PROTO ((struct expression **, char *));
+int enter_dns_host PROTO ((struct dns_host_entry **, char *));
+int make_const_data PROTO ((struct expression **,
+ unsigned char *, int, int, int));
+int make_concat PROTO ((struct expression **,
+ struct expression *, struct expression *));
+int make_substring PROTO ((struct expression **, struct expression *,
+ struct expression *, struct expression *));
+int make_limit PROTO ((struct expression **, struct expression *, int));
+int option_cache PROTO ((struct option_cache **, struct data_string *,
+ struct expression *, struct option *));
+int evaluate_boolean_expression PROTO ((int *,
+ struct packet *, struct option_state *,
+ struct expression *));
+int evaluate_data_expression PROTO ((struct data_string *,
+ struct packet *, struct option_state *,
+ struct expression *));
+int evaluate_numeric_expression PROTO
+ ((unsigned long *, struct packet *,
+ struct option_state *, struct expression *));
+int evaluate_option_cache PROTO ((struct data_string *,
+ struct packet *,
+ struct option_state *,
+ struct option_cache *));
+int evaluate_boolean_option_cache PROTO ((struct packet *,
+ struct option_state *,
+ struct option_cache *));
+int evaluate_boolean_expression_result PROTO ((struct packet *,
+ struct option_state *,
+ struct expression *));
+void expression_dereference PROTO ((struct expression **, char *));
+void option_state_dereference PROTO ((struct option_state *));
+void data_string_copy PROTO ((struct data_string *,
+ struct data_string *, char *));
+void data_string_forget PROTO ((struct data_string *, char *));
+void data_string_truncate PROTO ((struct data_string *, int));
+int is_boolean_expression PROTO ((struct expression *));
+int is_data_expression PROTO ((struct expression *));
+int is_numeric_expression PROTO ((struct expression *));
+int op_precedence PROTO ((enum expr_op, enum expr_op));
+enum expression_context op_context PROTO ((enum expr_op));
/* dhcp.c */
extern int outstanding_pings;
void dfree PROTO ((VOIDPTR, char *));
struct packet *new_packet PROTO ((char *));
struct dhcp_packet *new_dhcp_packet 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_expression PROTO ((struct expression *, char *));
void free_packet PROTO ((struct packet *, char *));
void free_dhcp_packet PROTO ((struct dhcp_packet *, char *));
-void free_option_cache PROTO ((struct option_cache *, char *));
+struct client_lease *new_client_lease PROTO ((char *));
+void free_client_lease PROTO ((struct client_lease *, char *));
+pair new_pair PROTO ((char *));
+void free_pair PROTO ((pair, char *));
+int expression_allocate PROTO ((struct expression **, char *));
+int expression_reference PROTO ((struct expression **,
+ struct expression *, char *));
+void free_expression PROTO ((struct expression *, char *));
+int option_cache_allocate PROTO ((struct option_cache **, char *));
+int option_cache_reference PROTO ((struct option_cache **,
+ struct option_cache *, char *));
+int buffer_allocate PROTO ((struct buffer **, int, char *));
+int buffer_reference PROTO ((struct buffer **, struct buffer *, char *));
+int buffer_dereference PROTO ((struct buffer **, char *));
+int dns_host_entry_allocate PROTO ((struct dns_host_entry **, char *));
+int dns_host_entry_reference PROTO ((struct dns_host_entry **,
+ struct dns_host_entry *, char *));
+int dns_host_entry_dereference PROTO ((struct dns_host_entry **, char *));
/* print.c */
char *print_hw_addr PROTO ((int, int, unsigned char *));
void dump_raw PROTO ((unsigned char *, int));
void dump_packet PROTO ((struct packet *));
void hash_dump PROTO ((struct hash_table *));
+char *print_hex_1 PROTO ((int, u_int8_t *, int));
+char *print_hex_2 PROTO ((int, u_int8_t *, int));
+char *print_hex_3 PROTO ((int, u_int8_t *, int));
+char *print_dotted_quads PROTO ((int, u_int8_t *));
+char *print_dec_1 PROTO ((int));
+char *print_dec_2 PROTO ((int));
+void print_expression PROTO ((char *, struct expression *));
/* socket.c */
#if defined (USE_SOCKET_SEND) || defined (USE_SOCKET_RECEIVE) \
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 int dhcp_option_default_priority_list [];
+extern int dhcp_option_default_priority_list_count;
extern char *hardware_types [256];
extern struct hash_table universe_hash;
void initialize_universes PROTO ((void));
void bind_lease PROTO ((struct interface_info *));
+void make_client_options PROTO ((struct interface_info *,
+ struct client_lease *, u_int8_t *,
+ struct option_cache *, struct iaddr *,
+ u_int32_t *, struct executable_statement *,
+ struct option_state *));
void make_discover PROTO ((struct interface_info *, struct client_lease *));
void make_request PROTO ((struct interface_info *, struct client_lease *));
void make_decline PROTO ((struct interface_info *, struct client_lease *));
void make_release PROTO ((struct interface_info *, struct client_lease *));
-void free_client_lease PROTO ((struct client_lease *));
+void destroy_client_lease PROTO ((struct client_lease *));
void rewrite_client_leases PROTO ((void));
void write_client_lease PROTO ((struct interface_info *,
struct client_lease *, int));
void parse_client_statement PROTO ((FILE *, struct interface_info *,
struct client_config *));
int parse_X PROTO ((FILE *, u_int8_t *, int));
-int parse_option_list PROTO ((FILE *, u_int8_t *));
+void parse_option_list PROTO ((FILE *, u_int32_t **));
void parse_interface_declaration PROTO ((FILE *, struct client_config *));
struct interface_info *interface_or_dummy PROTO ((char *));
void make_client_state PROTO ((struct interface_info *));
void parse_client_lease_statement PROTO ((FILE *, int));
void parse_client_lease_declaration PROTO ((FILE *, struct client_lease *,
struct interface_info **));
-struct option *parse_option_decl PROTO ((FILE *, struct option_data *));
+int parse_option_decl PROTO ((struct option_cache **, FILE *));
void parse_string_list PROTO ((FILE *, struct string_list **, int));
int parse_ip_addr PROTO ((FILE *, struct iaddr *));
void parse_reject_statement PROTO ((FILE *, struct client_config *));
/* inet_addr.c */
#ifdef NEED_INET_ATON
-int inet_aton PROTO ((char *, struct in_addr *));
+int inet_aton PROTO ((const char *, struct in_addr *));
#endif
/* sysconf.c */
/* execute.c */
int execute_statements PROTO ((struct packet *, struct option_state *,
+ struct option_state *,
struct executable_statement *));
void execute_statements_in_scope PROTO ((struct packet *,
struct option_state *,
projects / thirdparty / dhcp.git / commitdiff
