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Revert the change to the 12-digit calculation

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This commit is contained in:
Mike Brady
2022-11-16 16:45:37 +00:00
parent fc117e7302
commit dfcc4e377a
1 changed files with 1 additions and 51 deletions
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mdns.c
+1 -51
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@@ -48,19 +48,6 @@ extern mdns_backend mdns_external_avahi;
extern mdns_backend mdns_external_dns_sd;
#endif
#ifdef CONFIG_MBEDTLS
#include <mbedtls/md5.h>
#include <mbedtls/version.h>
#endif
#ifdef CONFIG_POLARSSL
#include <polarssl/md5.h>
#endif
#ifdef CONFIG_OPENSSL
#include <openssl/md5.h>
#endif
static mdns_backend *mdns_backends[] = {
#ifdef CONFIG_AVAHI
&mdns_avahi,
@@ -78,48 +65,11 @@ static mdns_backend *mdns_backends[] = {
NULL};
void mdns_register(char **txt_records, char **secondary_txt_records) {
// calculate the 12-hex-digit prefix by hashing the service name.
uint8_t ap_md5[16];
debug(1,"size of hw_addr is %u.", sizeof(config.hw_addr));
#ifdef CONFIG_OPENSSL
MD5_CTX ctx;
MD5_Init(&ctx);
MD5_Update(&ctx, config.service_name, strlen(config.service_name));
MD5_Update(&ctx, config.hw_addr, sizeof(config.hw_addr));
MD5_Final(ap_md5, &ctx);
#endif
#ifdef CONFIG_MBEDTLS
#if MBEDTLS_VERSION_MINOR >= 7
mbedtls_md5_context tctx;
mbedtls_md5_starts_ret(&tctx);
mbedtls_md5_update_ret(&tctx, (unsigned char *)config.service_name, strlen(config.service_name));
mbedtls_md5_update_ret(&tctx, (unsigned char *)config.hw_addr, sizeof(config.hw_addr));
mbedtls_md5_finish_ret(&tctx, ap_md5);
#else
mbedtls_md5_context tctx;
mbedtls_md5_starts(&tctx);
mbedtls_md5_update(&tctx, (unsigned char *)config.service_name, strlen(config.service_name));
mbedtls_md5_update(&tctx, (unsigned char *)config.hw_addr, sizeof(config.hw_addr));
mbedtls_md5_finish(&tctx, ap_md5);
#endif
#endif
#ifdef CONFIG_POLARSSL
md5_context tctx;
md5_starts(&tctx);
md5_update(&tctx, (unsigned char *)config.service_name, strlen(config.service_name));
md5_update(&tctx, (unsigned char *)config.hw_addr, sizeof(config.hw_addr));
md5_finish(&tctx, ap_md5);
#endif
char *ap1_service_name = alloca(strlen(config.service_name) + 14);
char *p = ap1_service_name;
int i;
for (i = 0; i < 6; i++) {
snprintf(p, 3, "%02X", ap_md5[i]);
snprintf(p, 3, "%02X", config.hw_addr[i]);
p += 2;
}
*p++ = '@';