30b290f99
Denys Vlasenko
2018-01-23
Subject
udhcpc6: additional fix for ppp interface type
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networking/udhcp/d6_socket.c+6 -2
| @@ -69,8 +69,12 @@ int FAST_FUNC d6_read_interface(const char *interface, int *ifindex, struct in6_ | |
| if (ioctl(fd, SIOCGIFINDEX, &ifr) == 0) { | |
| *ifindex = ifr.ifr_ifindex; | |
| log2("ifindex %d", *ifindex); | |
| - | ((uint32_t*)mac)[0] = rand(); |
| - | ((uint16_t*)mac)[2] = rand(); |
| + | if (((uint32_t*)mac)[0] == 0) { |
| + | /* invent a fictitious MAC (once) */ |
| + | ((uint32_t*)mac)[0] = rand(); |
| + | ((uint16_t*)mac)[2] = rand(); |
| + | mac[0] &= 0xfc; /* make sure it's not bcast */ |
| + | } |
| retval &= (3 - (1<<0)); | |
| } | |
| close(fd); | |