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https://code.semirocket.science/wrapsix
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Getting MAC address of the interface
Set IPv4 address of WrapSix
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@ -38,11 +38,14 @@
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#define INTERFACE "eth0"
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#define BUFFER_SIZE 65536
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#define PREFIX "::"
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#define PREFIX "fd77::"
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#define IPV4_ADDR "192.168.0.111"
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struct ifreq interface;
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struct s_mac_addr mac;
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struct s_ipv6_addr ndp_multicast_addr;
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struct s_ipv6_addr wrapsix_ipv6_prefix;
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struct s_ipv4_addr wrapsix_ipv4_addr;
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int process(char *packet);
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@ -70,6 +73,20 @@ int main(int argc, char **argv)
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return 1;
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}
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/* get interface's HW address (i.e. MAC) */
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if (ioctl(sniff_sock, SIOCGIFHWADDR, &interface) == 0) {
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memcpy(&mac, &interface.ifr_hwaddr.sa_data, sizeof(struct s_mac_addr));
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/* reinitialize the interface */
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if (ioctl(sniff_sock, SIOCGIFINDEX, &interface) == -1) {
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fprintf(stderr, "[Error] Unable to reinitialize the interface\n");
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return 1;
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}
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} else {
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fprintf(stderr, "[Error] Unable to get the interface's HW address\n");
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return 1;
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}
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/* set the promiscuous mode */
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memset(&pmr, 0x0, sizeof(pmr));
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pmr.mr_ifindex = interface.ifr_ifindex;
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@ -86,6 +103,9 @@ int main(int argc, char **argv)
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/* compute binary IPv6 address of WrapSix prefix */
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inet_pton(AF_INET6, PREFIX, &wrapsix_ipv6_prefix);
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/* compute binary IPv4 address of WrapSix */
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inet_pton(AF_INET, IPV4_ADDR, &wrapsix_ipv4_addr);
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/* initiate sending socket */
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if (transmission_init()) {
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fprintf(stderr, "[Error] Unable to initiate sending socket\n");
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@ -23,8 +23,10 @@
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#include "ipv6.h"
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extern struct ifreq interface;
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extern struct s_mac_addr mac;
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extern struct s_ipv6_addr ndp_multicast_addr;
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extern struct s_ipv6_addr wrapsix_ipv6_prefix;
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extern struct s_ipv4_addr wrapsix_ipv4_addr;
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void ipv6_to_ipv4(struct s_ipv6_addr *ipv6_addr, struct s_ipv4_addr *ipv4_addr);
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void ipv4_to_ipv6(struct s_ipv4_addr *ipv4_addr, struct s_ipv6_addr *ipv6_addr);
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