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dhcp struct
Syntax
struct dhcp
{
u32_t xid;
u8_t pcb_allocated;
u8_t state;
u8_t tries;
#if LWIP_DHCP_AUTOIP_COOP
u8_t autoip_coop_state;
#endif
u8_t subnet_mask_given;
u16_t request_timeout;
u16_t t1_timeout;
u16_t t2_timeout;
u16_t t1_renew_time;
u16_t t2_rebind_time;
u16_t lease_used;
u16_t t0_timeout;
ip_addr_t server_ip_addr;
ip4_addr_t offered_ip_addr;
ip4_addr_t offered_sn_mask;
ip4_addr_t offered_gw_addr;
u32_t offered_t0_lease;
u32_t offered_t1_renew;
u32_t offered_t2_rebind;
#if LWIP_DHCP_BOOTP_FILE
ip4_addr_t offered_si_addr;
char boot_file_name[DHCP_BOOT_FILE_LEN];
#endif
};
Fields
Field
Declared as
Description
Related Functions
Found 4 other functions taking a dhcp
argument:
Function
Description
Create a DHCP request, fill in common headers
Set a statically allocated struct dhcp to work with. Using this prevents dhcp_start to allocate it using mem_malloc.
Extract the DHCP message and the DHCP options. Extract the DHCP message and the DHCP options, each into a contiguous piece of memory. As a DHCP message is variable sized by its options, and also allows overriding some fields for options, the easy approach is to first unfold the options into a contiguous piece of memory, and use that further on.