diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/clients/net-snk/app/netlib/ndp.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/clients/net-snk/app/netlib/ndp.c')
-rw-r--r-- | qemu/roms/SLOF/clients/net-snk/app/netlib/ndp.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/clients/net-snk/app/netlib/ndp.c b/qemu/roms/SLOF/clients/net-snk/app/netlib/ndp.c new file mode 100644 index 000000000..ed9d61f4a --- /dev/null +++ b/qemu/roms/SLOF/clients/net-snk/app/netlib/ndp.c @@ -0,0 +1,147 @@ +/****************************************************************************** + * Copyright (c) 2013 IBM Corporation + * All rights reserved. + * This program and the accompanying materials + * are made available under the terms of the BSD License + * which accompanies this distribution, and is available at + * http://www.opensource.org/licenses/bsd-license.php + * + * Contributors: + * IBM Corporation - initial implementation + *****************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <netlib/ipv6.h> +#include <netlib/icmpv6.h> +#include <netlib/ndp.h> + +/* + * NET: add new router to list + * @param struct router nghb - new router + * @return true or false + */ +int8_t +router_add (struct router *nghb ) +{ + if (nghb == NULL) + return -1; + + if (first_router == NULL) { + first_router= nghb; + last_router = first_router; + last_router->next = NULL; + } else { + last_router->next = nghb; + last_router = nghb; + last_router->next = NULL; + } + return 1; /* no error */ +} + +/* + * NET: create a new router + * @param uint8_t *packet - received packet (Ethernet/IPv6/ICMPv6/ND_NghSlct) + * @param struct packeth - pointers to headers in packet + * @return pointer to new router + */ +void * +router_create (uint8_t *mac, ip6_addr_t *ip) +{ + struct router *new_router; + + new_router = malloc (sizeof(struct router)); + if( !new_router) { + return 0; + } + memset (new_router, 0, sizeof(struct router)); + + /* fill neighbor struct */ + memcpy (new_router->mac, mac, 6); + memcpy (&(new_router->ip.addr[0]), &(ip->addr[0]), IPV6_ADDR_LENGTH); + + return new_router; +} + +struct router * +find_router( ip6_addr_t *ip ) +{ + struct router *n = NULL; + + for (n = first_router; n != NULL ; n=n->next) + if (ip6_cmp (&(n->ip), ip)) + return n; /* router is already in list*/ + + return NULL; /* router is unknown */ +} + +/* + * NET: add new neighbor to list + * @param struct neighbor nghb - new neighbor + * @return true or false + */ +int8_t +neighbor_add (struct neighbor *nghb) +{ + if (nghb == NULL) + return -1; + + if (first_neighbor == NULL) { + first_neighbor = nghb; + last_neighbor = first_neighbor; + last_neighbor->next = NULL; + } else { + last_neighbor->next = nghb; + last_neighbor = nghb; + last_neighbor->next = NULL; + } + + return 1; /* no error */ +} + +/* + * NET: create a new neighbor + * @param uint8_t *packet - received packet (Ethernet/IPv6/ICMPv6/ND_NghSlct) + * @param struct packeth - pointers to headers in packet + * @return pointer - pointer to new neighbor + * NULL - malloc failed + */ +void * +neighbor_create (uint8_t *packet, struct packeth *headers) +{ + struct neighbor *new_neighbor; + + new_neighbor = malloc (sizeof(struct neighbor)); + if( !new_neighbor ) + return NULL; + + /* fill neighbor struct */ + memcpy (&(new_neighbor->mac), + &(headers->ethh->src_mac[0]), 6); + memcpy (&(new_neighbor->ip.addr), &(headers->ip6h->src), IPV6_ADDR_LENGTH); + new_neighbor->status = NB_INCOMPLETE; + + return new_neighbor; +} + +/** + * NET: Find neighbor with given IPv6 address in Neighbor Cache + * + * @param ip - Pointer to IPv6 address + * @return pointer - pointer to client IPv6 address (e.g. ::1) + * NULL - Neighbor not found + */ +struct neighbor * +find_neighbor (ip6_addr_t *ip) +{ + struct neighbor *n = NULL; + + for (n = first_neighbor; n != NULL ; n=n->next) { + if (ip6_cmp (&(n->ip), ip)) { + return n; /* neighbor is already in cache */ + } + } + + return NULL; /* neighbor is unknown */ +} |