b69460842
Denys Vlasenko
2019-07-02
Subject
ntpd: add comment about mode6, no code changes
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networking/ntpd.c+7 -0
| @@ -2238,6 +2238,13 @@ recv_and_process_client_pkt(void /*int fd*/) | |
| from = xzalloc(to->len); | |
| size = recv_from_to(G_listen_fd, &msg, sizeof(msg), MSG_DONTWAIT, from, &to->u.sa, to->len); | |
| + | |
| + | /* "ntpq -p" (4.2.8p13) sends a 12-byte NTPv2 request: |
| + | * m_status is 0x16: leap:0 version:2 mode:6(reserved1) |
| + | * https://docs.ntpsec.org/latest/mode6.html |
| + | * We don't support this. |
| + | */ |
| + | |
| #if ENABLE_FEATURE_NTP_AUTH | |
| if (size != NTP_MSGSIZE_NOAUTH && size != NTP_MSGSIZE_MD5_AUTH && size != NTP_MSGSIZE_SHA1_AUTH) | |
| #else | |