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https://github.com/PHJArea217/socket-enhancer
synced 2024-11-01 00:30:59 +02:00
Add support for unique local addresses
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1dd53e792d
commit
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@ -46,9 +46,11 @@ struct socket_enhancer_config {
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uint8_t has_v6_default:1;
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uint8_t has_v6_v4mapv6:1;
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uint8_t has_v6_linklocal:1;
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uint8_t has_v6_uniquelocal:1;
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struct ipv6_with_scope ipv6_default;
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struct ipv6_with_scope ipv6_v4mapv6;
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struct ipv6_with_scope ipv6_linklocal;
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struct ipv6_with_scope ipv6_uniquelocal;
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};
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static struct socket_enhancer_config *global_config = NULL;
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static void parse_v4(const char *addr, struct in_addr *result) {
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@ -114,6 +116,10 @@ static void socket_enhancer_init(void) {
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parse_v6(value, &temp_config->ipv6_v4mapv6);
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temp_config->has_v6_v4mapv6 = 1;
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break;
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case 0x76367571: /* "v6uq" */
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parse_v6(value, &temp_config->ipv6_uniquelocal);
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temp_config->has_v6_uniquelocal = 1;
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break;
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case 0x7636756c: /* "v6ul" */
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option_numeric_value = strtoul(value, NULL, 0);
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if (option_numeric_value > 3) goto out_of_range;
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@ -237,6 +243,12 @@ int connect(int fd, const struct sockaddr *addr_, socklen_t len_) {
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tmp_addr.address.s6_addr32[3] = *(uint32_t *) &config->ipv4_default;
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bind_addr = &tmp_addr;
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}
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} else if ((new_addr.ipv6_addr.sin6_addr.s6_addr[0] & 0xfe) == 0xfc) {
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if (config->has_v6_uniquelocal) {
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bind_addr = &config->ipv6_uniquelocal;
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} else if (config->has_v6_default) {
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bind_addr = &config->ipv6_default;
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}
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} else {
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if (config->has_v6_default) {
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bind_addr = &config->ipv6_default;
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