X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=networking%2Fudhcp%2Fcommon.h;h=d44bca4e6e2bc14087f525e623cb5e59b4ba843e;hb=fcc6347976ded376c9effe3b9fb216b00b2140cb;hp=77e689446110260a7c174c6a0a58447837298216;hpb=3f78561d63290c53ca8bb3cd6314ca7357a617ee;p=oweals%2Fbusybox.git diff --git a/networking/udhcp/common.h b/networking/udhcp/common.h index 77e689446..d44bca4e6 100644 --- a/networking/udhcp/common.h +++ b/networking/udhcp/common.h @@ -1,3 +1,4 @@ +/* vi: set sw=4 ts=4: */ /* common.h * * Russ Dill September 2001 @@ -9,28 +10,92 @@ #ifndef _COMMON_H #define _COMMON_H -#include "libbb_udhcp.h" +#include "libbb.h" +#define DEFAULT_SCRIPT CONFIG_DHCPC_DEFAULT_SCRIPT -enum syslog_levels { - LOG_EMERG = 0, - LOG_ALERT, - LOG_CRIT, - LOG_WARNING, - LOG_ERR, - LOG_INFO, - LOG_DEBUG +extern const uint8_t MAC_BCAST_ADDR[6]; /* six all-ones */ + +/*** packet.h ***/ + +#include +#include + +#define DHCP_OPTIONS_BUFSIZE 308 + +struct dhcpMessage { + uint8_t op; + uint8_t htype; + uint8_t hlen; + uint8_t hops; + uint32_t xid; + uint16_t secs; + uint16_t flags; + uint32_t ciaddr; + uint32_t yiaddr; + uint32_t siaddr; + uint32_t giaddr; + uint8_t chaddr[16]; + uint8_t sname[64]; + uint8_t file[128]; + uint32_t cookie; + uint8_t options[DHCP_OPTIONS_BUFSIZE + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS]; +} ATTRIBUTE_PACKED; + +struct udp_dhcp_packet { + struct iphdr ip; + struct udphdr udp; + struct dhcpMessage data; +} ATTRIBUTE_PACKED; + +/* Let's see whether compiler understood us right */ +struct BUG_bad_sizeof_struct_udp_dhcp_packet { + char BUG_bad_sizeof_struct_udp_dhcp_packet + [(sizeof(struct udp_dhcp_packet) != 576 + CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS) ? -1 : 1]; }; -#include -long uptime(void); +uint16_t udhcp_checksum(void *addr, int count); + +void udhcp_init_header(struct dhcpMessage *packet, char type); + +int udhcp_recv_packet(struct dhcpMessage *packet, int fd); +int udhcp_send_raw_packet(struct dhcpMessage *payload, + uint32_t source_ip, int source_port, + uint32_t dest_ip, int dest_port, + const uint8_t *dest_arp, int ifindex); +int udhcp_send_kernel_packet(struct dhcpMessage *payload, + uint32_t source_ip, int source_port, + uint32_t dest_ip, int dest_port); + + +/**/ + +void udhcp_run_script(struct dhcpMessage *packet, const char *name); + +// Still need to clean these up... + +/* from options.h */ +#define get_option udhcp_get_option +#define end_option udhcp_end_option +#define add_option_string udhcp_add_option_string +#define add_simple_option udhcp_add_simple_option +/* from socket.h */ +#define listen_socket udhcp_listen_socket +#define read_interface udhcp_read_interface -#define LOG(level, str, args...) udhcp_logging(level, str, ## args) +void udhcp_sp_setup(void); +int udhcp_sp_fd_set(fd_set *rfds, int extra_fd); +int udhcp_sp_read(const fd_set *rfds); +int raw_socket(int ifindex); +int read_interface(const char *interface, int *ifindex, uint32_t *addr, uint8_t *arp); +int listen_socket(/*uint32_t ip,*/ int port, const char *inf); +/* Returns 1 if no reply received */ +int arpping(uint32_t test_ip, uint32_t from_ip, uint8_t *from_mac, const char *interface); #if ENABLE_FEATURE_UDHCP_DEBUG -# define DEBUG(level, str, args...) LOG(level, str, ## args) +# define DEBUG(str, args...) bb_info_msg("### " str, ## args) #else -# define DEBUG(level, str, args...) do {;} while(0) +# define DEBUG(str, args...) do {;} while (0) #endif #endif