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[ipv4] Fix fragment reassembly

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-07-16 01:15:53 +01:00
parent 17f09dfe03
commit 13186b64b6
2 changed files with 126 additions and 105 deletions
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23
src/include/ipxe/ip.h
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@@ -31,9 +31,6 @@ struct io_buffer;
#define IP_TOS 0
#define IP_TTL 64
#define IP_FRAG_IOB_SIZE 1500
#define IP_FRAG_TIMEOUT 50
/** An IPv4 packet header */
struct iphdr {
uint8_t verhdrlen;
@@ -73,20 +70,16 @@ struct ipv4_miniroute {
struct in_addr gateway;
};
/* Fragment reassembly buffer */
struct frag_buffer {
/* Identification number */
uint16_t ident;
/* Source network address */
struct in_addr src;
/* Destination network address */
struct in_addr dest;
/* Reassembled I/O buffer */
struct io_buffer *frag_iob;
/* Reassembly timer */
struct retry_timer frag_timer;
/* IPv4 fragment reassembly buffer */
struct ipv4_fragment {
/* List of fragment reassembly buffers */
struct list_head list;
/** Reassembled packet */
struct io_buffer *iobuf;
/** Current offset */
size_t offset;
/** Reassembly timer */
struct retry_timer timer;
};
extern struct list_head ipv4_miniroutes;