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Merge pull request #393 from fengdaolong/pre_dupIP

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Prevent allocation duplicate IP.
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Luca Deri 2020-08-30 20:57:26 +02:00 committed by GitHub
commit 97883ab64c
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src/sn_utils.c
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@ -997,6 +997,7 @@ static int process_udp(n2n_sn_t * sss,
memcpy(ack.edgeMac, reg.edgeMac, sizeof(n2n_mac_t)); memcpy(ack.edgeMac, reg.edgeMac, sizeof(n2n_mac_t));
if ((reg.dev_addr.net_addr == 0) || (reg.dev_addr.net_addr == 0xFFFFFFFF) || (reg.dev_addr.net_bitlen == 0) || if ((reg.dev_addr.net_addr == 0) || (reg.dev_addr.net_addr == 0xFFFFFFFF) || (reg.dev_addr.net_bitlen == 0) ||
((reg.dev_addr.net_addr & 0xFFFF0000) == 0xA9FE0000 /* 169.254.0.0 */)) { ((reg.dev_addr.net_addr & 0xFFFF0000) == 0xA9FE0000 /* 169.254.0.0 */)) {
memset(&ipaddr, 0, sizeof(n2n_ip_subnet_t));
assign_one_ip_addr(comm, &ipaddr); assign_one_ip_addr(comm, &ipaddr);
ack.dev_addr.net_addr = ipaddr.net_addr; ack.dev_addr.net_addr = ipaddr.net_addr;
ack.dev_addr.net_bitlen = ipaddr.net_bitlen; ack.dev_addr.net_bitlen = ipaddr.net_bitlen;