diff options
Diffstat (limited to 'slirp/src/ndp_table.c')
m--------- | slirp | 0 | ||||
-rw-r--r-- | slirp/src/ndp_table.c | 87 |
2 files changed, 0 insertions, 87 deletions
diff --git a/slirp b/slirp new file mode 160000 +Subproject 59a1b1f165458c2acb7ff0525b543945f741622 diff --git a/slirp/src/ndp_table.c b/slirp/src/ndp_table.c deleted file mode 100644 index 78324877e2..0000000000 --- a/slirp/src/ndp_table.c +++ /dev/null @@ -1,87 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause */ -/* - * Copyright (c) 2013 - * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne. - */ - -#include "slirp.h" - -void ndp_table_add(Slirp *slirp, struct in6_addr ip_addr, - uint8_t ethaddr[ETH_ALEN]) -{ - char addrstr[INET6_ADDRSTRLEN]; - NdpTable *ndp_table = &slirp->ndp_table; - int i; - - inet_ntop(AF_INET6, &(ip_addr), addrstr, INET6_ADDRSTRLEN); - - DEBUG_CALL("ndp_table_add"); - DEBUG_ARG("ip = %s", addrstr); - DEBUG_ARG("hw addr = %02x:%02x:%02x:%02x:%02x:%02x", - ethaddr[0], ethaddr[1], ethaddr[2], - ethaddr[3], ethaddr[4], ethaddr[5]); - - if (IN6_IS_ADDR_MULTICAST(&ip_addr) || in6_zero(&ip_addr)) { - /* Do not register multicast or unspecified addresses */ - DEBUG_CALL(" abort: do not register multicast or unspecified address"); - return; - } - - /* Search for an entry */ - for (i = 0; i < NDP_TABLE_SIZE; i++) { - if (in6_equal(&ndp_table->table[i].ip_addr, &ip_addr)) { - DEBUG_CALL(" already in table: update the entry"); - /* Update the entry */ - memcpy(ndp_table->table[i].eth_addr, ethaddr, ETH_ALEN); - return; - } - } - - /* No entry found, create a new one */ - DEBUG_CALL(" create new entry"); - ndp_table->table[ndp_table->next_victim].ip_addr = ip_addr; - memcpy(ndp_table->table[ndp_table->next_victim].eth_addr, - ethaddr, ETH_ALEN); - ndp_table->next_victim = (ndp_table->next_victim + 1) % NDP_TABLE_SIZE; -} - -bool ndp_table_search(Slirp *slirp, struct in6_addr ip_addr, - uint8_t out_ethaddr[ETH_ALEN]) -{ - char addrstr[INET6_ADDRSTRLEN]; - NdpTable *ndp_table = &slirp->ndp_table; - int i; - - inet_ntop(AF_INET6, &(ip_addr), addrstr, INET6_ADDRSTRLEN); - - DEBUG_CALL("ndp_table_search"); - DEBUG_ARG("ip = %s", addrstr); - - assert(!in6_zero(&ip_addr)); - - /* Multicast address: fec0::abcd:efgh/8 -> 33:33:ab:cd:ef:gh */ - if (IN6_IS_ADDR_MULTICAST(&ip_addr)) { - out_ethaddr[0] = 0x33; out_ethaddr[1] = 0x33; - out_ethaddr[2] = ip_addr.s6_addr[12]; - out_ethaddr[3] = ip_addr.s6_addr[13]; - out_ethaddr[4] = ip_addr.s6_addr[14]; - out_ethaddr[5] = ip_addr.s6_addr[15]; - DEBUG_ARG("multicast addr = %02x:%02x:%02x:%02x:%02x:%02x", - out_ethaddr[0], out_ethaddr[1], out_ethaddr[2], - out_ethaddr[3], out_ethaddr[4], out_ethaddr[5]); - return 1; - } - - for (i = 0; i < NDP_TABLE_SIZE; i++) { - if (in6_equal(&ndp_table->table[i].ip_addr, &ip_addr)) { - memcpy(out_ethaddr, ndp_table->table[i].eth_addr, ETH_ALEN); - DEBUG_ARG("found hw addr = %02x:%02x:%02x:%02x:%02x:%02x", - out_ethaddr[0], out_ethaddr[1], out_ethaddr[2], - out_ethaddr[3], out_ethaddr[4], out_ethaddr[5]); - return 1; - } - } - - DEBUG_CALL(" ip not found in table"); - return 0; -} |