add protocol for exchanging signed network data

[project/unetd.git] / auth-data.c

diff --git a/auth-data.c b/auth-data.c
index c5873dba4f82ba75bebc97ac1569a1c5a06b508f..3d6621304705e880e972455da12a4cd2d5cef4c8 100644 (file)
--- a/auth-data.c
+++ b/auth-data.c
@@ -7,7 +7,7 @@
 #include "auth-data.h"
 
 int unet_auth_data_validate(const uint8_t *key, const void *buf, size_t len,
-                           const char **json_data)
+                           uint64_t *timestamp, const char **json_data)
 {
        const struct unet_auth_hdr *hdr = buf;
        const struct unet_auth_data *data = net_data_auth_data_hdr(buf);
@@ -23,7 +23,7 @@ int unet_auth_data_validate(const uint8_t *key, const void *buf, size_t len,
            data->timestamp == 0)
                return -1;
 
-       if (memcmp(data->pubkey, key, EDSIGN_PUBLIC_KEY_SIZE) != 0)
+       if (key && memcmp(data->pubkey, key, EDSIGN_PUBLIC_KEY_SIZE) != 0)
                return -2;
 
        edsign_verify_init(&vst, hdr->signature, data->pubkey);
@@ -34,6 +34,9 @@ int unet_auth_data_validate(const uint8_t *key, const void *buf, size_t len,
        if (*(char *)(data + len - 1) != 0)
                return -2;
 
+       if (timestamp)
+               *timestamp = be64_to_cpu(data->timestamp);
+
        if (json_data)
                *json_data = (const char *)(data + 1);