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icmp6.h File Reference

icmp6.h File Reference

IPv6 version of ICMP, as per RFC 4443. More...

Go to the source code of this file.

Functions

void icmp6_input (struct pbuf *p, struct netif *inp)
 Process an input ICMPv6 message.
void icmp6_dest_unreach (struct pbuf *p, enum icmp6_dur_code c)
 Send an icmpv6 'destination unreachable' packet.
void icmp6_packet_too_big (struct pbuf *p, u32_t mtu)
 Send an icmpv6 'packet too big' packet.
void icmp6_time_exceeded (struct pbuf *p, enum icmp6_te_code c)
 Send an icmpv6 'time exceeded' packet.
void icmp6_time_exceeded_with_addrs (struct pbuf *p, enum icmp6_te_code c, const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr)
 Send an icmpv6 'time exceeded' packet, with explicit source and destination addresses.
void icmp6_param_problem (struct pbuf *p, enum icmp6_pp_code c, const void *pointer)
 Send an icmpv6 'parameter problem' packet.

Detailed Description

IPv6 version of ICMP, as per RFC 4443.

Definition in file icmp6.h.


Function Documentation

void icmp6_dest_unreach ( struct pbuf p,
enum icmp6_dur_code  c 
)

Send an icmpv6 'destination unreachable' packet.

This function must be used only in direct response to a packet that is being received right now. Otherwise, address zones would be lost.

Parameters:
pthe input packet for which the 'unreachable' should be sent, p->payload pointing to the IPv6 header
cICMPv6 code for the unreachable type

Definition at line 220 of file lwip_icmp6.c.

void icmp6_input ( struct pbuf p,
struct netif inp 
)

Process an input ICMPv6 message.

Called by ip6_input.

Will generate a reply for echo requests. Other messages are forwarded to nd6_input, or mld6_input.

Parameters:
pthe mld packet, p->payload pointing to the icmpv6 header
inpthe netif on which this packet was received

Definition at line 83 of file lwip_icmp6.c.

void icmp6_packet_too_big ( struct pbuf p,
u32_t  mtu 
)

Send an icmpv6 'packet too big' packet.

This function must be used only in direct response to a packet that is being received right now. Otherwise, address zones would be lost.

Parameters:
pthe input packet for which the 'packet too big' should be sent, p->payload pointing to the IPv6 header
mtuthe maximum mtu that we can accept

Definition at line 236 of file lwip_icmp6.c.

void icmp6_param_problem ( struct pbuf p,
enum icmp6_pp_code  c,
const void *  pointer 
)

Send an icmpv6 'parameter problem' packet.

This function must be used only in direct response to a packet that is being received right now. Otherwise, address zones would be lost and the calculated offset would be wrong (calculated against ip6_current_header()).

Parameters:
pthe input packet for which the 'param problem' should be sent, p->payload pointing to the IP header
cICMPv6 code for the param problem type
pointerthe pointer to the byte where the parameter is found

Definition at line 292 of file lwip_icmp6.c.

void icmp6_time_exceeded ( struct pbuf p,
enum icmp6_te_code  c 
)

Send an icmpv6 'time exceeded' packet.

This function must be used only in direct response to a packet that is being received right now. Otherwise, address zones would be lost.

Parameters:
pthe input packet for which the 'time exceeded' should be sent, p->payload pointing to the IPv6 header
cICMPv6 code for the time exceeded type

Definition at line 252 of file lwip_icmp6.c.

void icmp6_time_exceeded_with_addrs ( struct pbuf p,
enum icmp6_te_code  c,
const ip6_addr_t src_addr,
const ip6_addr_t dest_addr 
)

Send an icmpv6 'time exceeded' packet, with explicit source and destination addresses.

This function may be used to send a response sometime after receiving the packet for which this response is meant. The provided source and destination addresses are used primarily to retain their zone information.

Parameters:
pthe input packet for which the 'time exceeded' should be sent, p->payload pointing to the IPv6 header
cICMPv6 code for the time exceeded type
src_addrsource address of the original packet, with zone information
dest_addrdestination address of the original packet, with zone information

Definition at line 273 of file lwip_icmp6.c.