diff options
Diffstat (limited to 'core/lwip/src/include/lwip/dhcp.h')
| -rw-r--r-- | core/lwip/src/include/lwip/dhcp.h | 156 |
1 files changed, 76 insertions, 80 deletions
diff --git a/core/lwip/src/include/lwip/dhcp.h b/core/lwip/src/include/lwip/dhcp.h index db37e884..32d93381 100644 --- a/core/lwip/src/include/lwip/dhcp.h +++ b/core/lwip/src/include/lwip/dhcp.h @@ -22,6 +22,10 @@ extern "C" { /** period (in milliseconds) of the application calling dhcp_fine_tmr() */ #define DHCP_FINE_TIMER_MSECS 500 +#define DHCP_CHADDR_LEN 16U +#define DHCP_SNAME_LEN 64U +#define DHCP_FILE_LEN 128U + struct dhcp { /** transaction identifier of last sent request */ @@ -30,14 +34,14 @@ struct dhcp struct udp_pcb *pcb; /** incoming msg */ struct dhcp_msg *msg_in; - /** incoming msg options */ - void *options_in; - /** ingoing msg options length */ - u16_t options_in_len; /** current DHCP state machine state */ u8_t state; /** retries of current request */ u8_t tries; +#if LWIP_DHCP_AUTOIP_COOP + u8_t autoip_coop_state; +#endif + u8_t subnet_mask_given; struct pbuf *p_out; /* pbuf of outcoming msg */ struct dhcp_msg *msg_out; /* outgoing msg */ @@ -45,28 +49,20 @@ struct dhcp u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */ u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */ u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */ - struct ip_addr server_ip_addr; /* dhcp server address that offered this lease */ - struct ip_addr offered_ip_addr; - struct ip_addr offered_sn_mask; - struct ip_addr offered_gw_addr; - struct ip_addr offered_bc_addr; -#define DHCP_MAX_DNS 2 - u32_t dns_count; /* actual number of DNS servers obtained */ - struct ip_addr offered_dns_addr[DHCP_MAX_DNS]; /* DNS server addresses */ + ip_addr_t server_ip_addr; /* dhcp server address that offered this lease */ + ip_addr_t offered_ip_addr; + ip_addr_t offered_sn_mask; + ip_addr_t offered_gw_addr; u32_t offered_t0_lease; /* lease period (in seconds) */ u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */ u32_t offered_t2_rebind; /* recommended rebind time (usually 66% of lease period) */ -#if LWIP_DHCP_AUTOIP_COOP - u8_t autoip_coop_state; -#endif -/** Patch #1308 - * TODO: See dhcp.c "TODO"s - */ -#if 0 - struct ip_addr offered_si_addr; - u8_t *boot_file_name; -#endif + /* @todo: LWIP_DHCP_BOOTP_FILE configuration option? + integrate with possible TFTP-client for booting? */ +#if LWIP_DHCP_BOOTP_FILE + ip_addr_t offered_si_addr; + char boot_file_name[DHCP_FILE_LEN]; +#endif /* LWIP_DHCP_BOOTPFILE */ }; /* MUST be compiled with "pack structs" or equivalent! */ @@ -84,15 +80,12 @@ struct dhcp_msg PACK_STRUCT_FIELD(u32_t xid); PACK_STRUCT_FIELD(u16_t secs); PACK_STRUCT_FIELD(u16_t flags); - PACK_STRUCT_FIELD(struct ip_addr ciaddr); - PACK_STRUCT_FIELD(struct ip_addr yiaddr); - PACK_STRUCT_FIELD(struct ip_addr siaddr); - PACK_STRUCT_FIELD(struct ip_addr giaddr); -#define DHCP_CHADDR_LEN 16U + PACK_STRUCT_FIELD(ip_addr_p_t ciaddr); + PACK_STRUCT_FIELD(ip_addr_p_t yiaddr); + PACK_STRUCT_FIELD(ip_addr_p_t siaddr); + PACK_STRUCT_FIELD(ip_addr_p_t giaddr); PACK_STRUCT_FIELD(u8_t chaddr[DHCP_CHADDR_LEN]); -#define DHCP_SNAME_LEN 64U PACK_STRUCT_FIELD(u8_t sname[DHCP_SNAME_LEN]); -#define DHCP_FILE_LEN 128U PACK_STRUCT_FIELD(u8_t file[DHCP_FILE_LEN]); PACK_STRUCT_FIELD(u32_t cookie); #define DHCP_MIN_OPTIONS_LEN 68U @@ -112,6 +105,10 @@ PACK_STRUCT_END # include "arch/epstruct.h" #endif +void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp); +/** Remove a struct dhcp previously set to the netif using dhcp_set_struct() */ +#define dhcp_remove_struct(netif) do { (netif)->dhcp = NULL; } while(0) +void dhcp_cleanup(struct netif *netif); /** start DHCP configuration */ err_t dhcp_start(struct netif *netif); /** enforce early lease renewal (not needed normally)*/ @@ -127,7 +124,7 @@ void dhcp_network_changed(struct netif *netif); /** if enabled, check whether the offered IP address is not in use, using ARP */ #if DHCP_DOES_ARP_CHECK -void dhcp_arp_reply(struct netif *netif, struct ip_addr *addr); +void dhcp_arp_reply(struct netif *netif, ip_addr_t *addr); #endif /** to be called every minute */ @@ -136,66 +133,66 @@ void dhcp_coarse_tmr(void); void dhcp_fine_tmr(void); /** DHCP message item offsets and length */ -#define DHCP_MSG_OFS (UDP_DATA_OFS) - #define DHCP_OP_OFS (DHCP_MSG_OFS + 0) - #define DHCP_HTYPE_OFS (DHCP_MSG_OFS + 1) - #define DHCP_HLEN_OFS (DHCP_MSG_OFS + 2) - #define DHCP_HOPS_OFS (DHCP_MSG_OFS + 3) - #define DHCP_XID_OFS (DHCP_MSG_OFS + 4) - #define DHCP_SECS_OFS (DHCP_MSG_OFS + 8) - #define DHCP_FLAGS_OFS (DHCP_MSG_OFS + 10) - #define DHCP_CIADDR_OFS (DHCP_MSG_OFS + 12) - #define DHCP_YIADDR_OFS (DHCP_MSG_OFS + 16) - #define DHCP_SIADDR_OFS (DHCP_MSG_OFS + 20) - #define DHCP_GIADDR_OFS (DHCP_MSG_OFS + 24) - #define DHCP_CHADDR_OFS (DHCP_MSG_OFS + 28) - #define DHCP_SNAME_OFS (DHCP_MSG_OFS + 44) - #define DHCP_FILE_OFS (DHCP_MSG_OFS + 108) -#define DHCP_MSG_LEN 236 - -#define DHCP_COOKIE_OFS (DHCP_MSG_OFS + DHCP_MSG_LEN) -#define DHCP_OPTIONS_OFS (DHCP_MSG_OFS + DHCP_MSG_LEN + 4) - -#define DHCP_CLIENT_PORT 68 -#define DHCP_SERVER_PORT 67 +#define DHCP_OP_OFS 0 +#define DHCP_HTYPE_OFS 1 +#define DHCP_HLEN_OFS 2 +#define DHCP_HOPS_OFS 3 +#define DHCP_XID_OFS 4 +#define DHCP_SECS_OFS 8 +#define DHCP_FLAGS_OFS 10 +#define DHCP_CIADDR_OFS 12 +#define DHCP_YIADDR_OFS 16 +#define DHCP_SIADDR_OFS 20 +#define DHCP_GIADDR_OFS 24 +#define DHCP_CHADDR_OFS 28 +#define DHCP_SNAME_OFS 44 +#define DHCP_FILE_OFS 108 +#define DHCP_MSG_LEN 236 + +#define DHCP_COOKIE_OFS DHCP_MSG_LEN +#define DHCP_OPTIONS_OFS (DHCP_MSG_LEN + 4) + +#define DHCP_CLIENT_PORT 68 +#define DHCP_SERVER_PORT 67 /** DHCP client states */ -#define DHCP_REQUESTING 1 -#define DHCP_INIT 2 -#define DHCP_REBOOTING 3 -#define DHCP_REBINDING 4 -#define DHCP_RENEWING 5 -#define DHCP_SELECTING 6 -#define DHCP_INFORMING 7 -#define DHCP_CHECKING 8 -#define DHCP_PERMANENT 9 -#define DHCP_BOUND 10 +#define DHCP_OFF 0 +#define DHCP_REQUESTING 1 +#define DHCP_INIT 2 +#define DHCP_REBOOTING 3 +#define DHCP_REBINDING 4 +#define DHCP_RENEWING 5 +#define DHCP_SELECTING 6 +#define DHCP_INFORMING 7 +#define DHCP_CHECKING 8 +#define DHCP_PERMANENT 9 +#define DHCP_BOUND 10 /** not yet implemented #define DHCP_RELEASING 11 */ -#define DHCP_BACKING_OFF 12 -#define DHCP_OFF 13 +#define DHCP_BACKING_OFF 12 /** AUTOIP cooperatation flags */ -#define DHCP_AUTOIP_COOP_STATE_OFF 0 -#define DHCP_AUTOIP_COOP_STATE_ON 1 +#define DHCP_AUTOIP_COOP_STATE_OFF 0 +#define DHCP_AUTOIP_COOP_STATE_ON 1 -#define DHCP_BOOTREQUEST 1 -#define DHCP_BOOTREPLY 2 +#define DHCP_BOOTREQUEST 1 +#define DHCP_BOOTREPLY 2 +/** DHCP message types */ #define DHCP_DISCOVER 1 -#define DHCP_OFFER 2 -#define DHCP_REQUEST 3 -#define DHCP_DECLINE 4 -#define DHCP_ACK 5 -#define DHCP_NAK 6 -#define DHCP_RELEASE 7 -#define DHCP_INFORM 8 - +#define DHCP_OFFER 2 +#define DHCP_REQUEST 3 +#define DHCP_DECLINE 4 +#define DHCP_ACK 5 +#define DHCP_NAK 6 +#define DHCP_RELEASE 7 +#define DHCP_INFORM 8 + +/** DHCP hardware type, currently only ethernet is supported */ #define DHCP_HTYPE_ETH 1 -#define DHCP_HLEN_ETH 6 +#define DHCP_MAGIC_COOKIE 0x63825363UL -#define DHCP_BROADCAST_FLAG 15 -#define DHCP_BROADCAST_MASK (1 << DHCP_FLAG_BROADCAST) +/* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */ /** BootP options */ #define DHCP_OPTION_PAD 0 @@ -217,7 +214,6 @@ void dhcp_fine_tmr(void); #define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */ #define DHCP_OPTION_MESSAGE_TYPE_LEN 1 - #define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */ #define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */ |