fc9e108032
udhcpc: guard against zero lease time function old new delta timeout 4 - -4 server_addr 4 - -4 requested_ip 4 - -4 perform_release 134 112 -22 udhcpc_main 2511 2485 -26 ------------------------------------------------------------------------------ (add/remove: 0/3 grow/shrink: 0/2 up/down: 0/-60) Total: -60 bytes
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/* vi: set sw=4 ts=4: */
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/* dhcpc.h */
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#ifndef _DHCPC_H
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#define _DHCPC_H
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#if __GNUC_PREREQ(4,1)
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# pragma GCC visibility push(hidden)
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#endif
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struct client_config_t {
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/* TODO: combine flag fields into single "unsigned opt" */
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/* (can be set directly to the result of getopt32) */
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char foreground; /* Do not fork */
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char quit_after_lease; /* Quit after obtaining lease */
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char release_on_quit; /* Perform release on quit */
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char abort_if_no_lease; /* Abort if no lease */
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char background_if_no_lease; /* Fork to background if no lease */
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char no_default_options; /* Do not include default optins in request */
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const char *interface; /* The name of the interface to use */
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char *pidfile; /* Optionally store the process ID */
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const char *script; /* User script to run at dhcp events */
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uint8_t *clientid; /* Optional client id to use */
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uint8_t *vendorclass; /* Optional vendor class-id to use */
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uint8_t *hostname; /* Optional hostname to use */
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uint8_t *fqdn; /* Optional fully qualified domain name to use */
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int ifindex; /* Index number of the interface to use */
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#if ENABLE_FEATURE_UDHCP_PORT
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uint16_t port;
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#endif
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uint8_t arp[6]; /* Our arp address */
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uint8_t opt_mask[256 / 8]; /* Bitmask of options to send (-O option) */
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};
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/* server_config sits in 1st half of bb_common_bufsiz1 */
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#define client_config (*(struct client_config_t*)(&bb_common_bufsiz1[COMMON_BUFSIZE/2]))
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#if ENABLE_FEATURE_UDHCP_PORT
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#define CLIENT_PORT (client_config.port)
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#else
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#define CLIENT_PORT 68
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#endif
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/*** clientpacket.h ***/
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uint32_t random_xid(void);
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int send_discover(uint32_t xid, uint32_t requested);
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int send_selecting(uint32_t xid, uint32_t server, uint32_t requested);
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#if ENABLE_FEATURE_UDHCPC_ARPING
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int send_decline(uint32_t xid, uint32_t server, uint32_t requested);
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#endif
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int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr);
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int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr);
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int send_release(uint32_t server, uint32_t ciaddr);
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int udhcp_recv_raw_packet(struct dhcpMessage *payload, int fd);
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#if __GNUC_PREREQ(4,1)
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# pragma GCC visibility pop
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#endif
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#endif
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