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Added tests for connection id lengths in initial packet.

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This commit is contained in:
Vladimir Homutov 2020-05-14 14:49:28 +03:00
parent d4f9bba111
commit 5ccda6882e
3 changed files with 24 additions and 1 deletions
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8
src/event/ngx_event_quic.c
View File

@ -579,6 +579,14 @@ ngx_quic_new_connection(ngx_connection_t *c, ngx_ssl_t *ssl, ngx_quic_tp_t *tp,
return NGX_ERROR;
}
if (pkt->dcid.len < NGX_QUIC_CID_LEN_MIN) {
/* 7.2. Negotiating Connection IDs */
ngx_log_error(NGX_LOG_INFO, c->log, 0,
"quic too short dcid in initial packet: length %i",
pkt->dcid.len);
return NGX_ERROR;
}
c->log->action = "creating new quic connection";
qc = ngx_pcalloc(c->pool, sizeof(ngx_quic_connection_t));

12
src/event/ngx_event_quic_transport.c
View File

@ -283,6 +283,12 @@ ngx_quic_parse_long_header(ngx_quic_header_t *pkt)
return NGX_ERROR;
}
if (idlen > NGX_QUIC_CID_LEN_MAX) {
ngx_log_error(NGX_LOG_INFO, pkt->log, 0,
"quic packet dcid is too long");
return NGX_ERROR;
}
pkt->dcid.len = idlen;
p = ngx_quic_read_bytes(p, end, idlen, &pkt->dcid.data);
@ -299,6 +305,12 @@ ngx_quic_parse_long_header(ngx_quic_header_t *pkt)
return NGX_ERROR;
}
if (idlen > NGX_QUIC_CID_LEN_MAX) {
ngx_log_error(NGX_LOG_INFO, pkt->log, 0,
"quic packet scid is too long");
return NGX_ERROR;
}
pkt->scid.len = idlen;
p = ngx_quic_read_bytes(p, end, idlen, &pkt->scid.data);

5
src/event/ngx_event_quic_transport.h
View File

@ -112,6 +112,9 @@
#define NGX_QUIC_TP_PREFERRED_ADDRESS 0x0D
#define NGX_QUIC_TP_ACTIVE_CONNECTION_ID_LIMIT 0x0E
#define NGX_QUIC_CID_LEN_MIN 8
#define NGX_QUIC_CID_LEN_MAX 20
typedef struct {
uint64_t largest;
@ -130,7 +133,7 @@ typedef struct {
uint64_t seqnum;
uint64_t retire;
uint8_t len;
u_char cid[20];
u_char cid[NGX_QUIC_CID_LEN_MAX];
u_char srt[16];
} ngx_quic_new_conn_id_frame_t;