From 11cb620266035ffbe17b21c4a174380cb8b6a521 Mon Sep 17 00:00:00 2001 From: Ondrej Zajicek Date: Sun, 26 Oct 2008 22:36:08 +0100 Subject: Implementation of 4B ASN support for BGP --- nest/attrs.h | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) (limited to 'nest/attrs.h') diff --git a/nest/attrs.h b/nest/attrs.h index abd6b9e..f63f2e4 100644 --- a/nest/attrs.h +++ b/nest/attrs.h @@ -14,16 +14,29 @@ #define AS_PATH_SET 1 /* Types of path segments */ #define AS_PATH_SEQUENCE 2 -struct adata *as_path_prepend(struct linpool *pool, struct adata *olda, int as); +#define AS_PATH_MAXLEN 10000 + +#define AS_TRANS 23456 +/* AS_TRANS is used when we need to store 32bit ASN larger than 0xFFFF + * to 16bit slot (like in 16bit AS_PATH). See RFC 4893 for details + */ + +struct adata *as_path_prepend(struct linpool *pool, struct adata *olda, u32 as); +int as_path_convert_to_old(struct adata *path, byte *dst, int *new_used); +int as_path_convert_to_new(struct adata *path, byte *dst, int req_as); void as_path_format(struct adata *path, byte *buf, unsigned int size); int as_path_getlen(struct adata *path); -int as_path_get_first(struct adata *path); +int as_path_get_first(struct adata *path, u32 *orig_as); +int as_path_is_member(struct adata *path, u32 as); + struct f_path_mask { struct f_path_mask *next; - int val; + u32 val; + int any; }; -#define PM_ANY -1 + +// #define PM_ANY -1 int as_path_match(struct adata *path, struct f_path_mask *mask); -- cgit v1.2.3 From 4847a894bf7d4852325c3f1ea4bb4890054a1f66 Mon Sep 17 00:00:00 2001 From: Ondrej Zajicek Date: Sun, 26 Oct 2008 22:45:09 +0100 Subject: Implementation of route reflection for BGP --- nest/attrs.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'nest/attrs.h') diff --git a/nest/attrs.h b/nest/attrs.h index f63f2e4..aaa5f4a 100644 --- a/nest/attrs.h +++ b/nest/attrs.h @@ -47,4 +47,7 @@ struct adata *int_set_add(struct linpool *pool, struct adata *list, u32 val); int int_set_contains(struct adata *list, u32 val); struct adata *int_set_del(struct linpool *pool, struct adata *list, u32 val); +static inline int int_set_get_size(struct adata *list) +{ return list->length / 4; } + #endif -- cgit v1.2.3 From b6bf284a905412cfe107b4967e55649e6194187e Mon Sep 17 00:00:00 2001 From: Ondrej Zajicek Date: Sun, 26 Oct 2008 22:59:21 +0100 Subject: Bugfixes in MULIT_EXIT_DISC attribute handling. - Old MED handling was completely different from behavior specified in RFCs - for example they havn't been propagated to neighboring areas. - Update tie-breaking according to RFC 4271. - Change default value for 'default bgp_med' configuration option according to RFC 4271. --- nest/attrs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'nest/attrs.h') diff --git a/nest/attrs.h b/nest/attrs.h index aaa5f4a..fee2c2c 100644 --- a/nest/attrs.h +++ b/nest/attrs.h @@ -27,6 +27,7 @@ int as_path_convert_to_new(struct adata *path, byte *dst, int req_as); void as_path_format(struct adata *path, byte *buf, unsigned int size); int as_path_getlen(struct adata *path); int as_path_get_first(struct adata *path, u32 *orig_as); +int as_path_get_last(struct adata *path, u32 *last_as); int as_path_is_member(struct adata *path, u32 as); -- cgit v1.2.3