diff options
| author | Hugo Landau <hlandau@openssl.org> | 2023-05-23 12:23:05 +0100 |
|---|---|---|
| committer | Pauli <pauli@openssl.org> | 2023-06-16 09:26:27 +1000 |
| commit | dfd8176f2556ca7ad0029012a048a3adc840bca5 (patch) | |
| tree | 780ef5d906a9b4766cf77f74c7db8cfc2956baa1 | |
| parent | 5633a323df5a533e003163b9f556a476b9f9df45 (diff) | |
QUIC WIRE: Utility function to determine if PN is in an ACK frame
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21029)
| -rw-r--r-- | include/internal/quic_wire.h | 3 | ||||
| -rw-r--r-- | ssl/quic/quic_wire.c | 12 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/internal/quic_wire.h b/include/internal/quic_wire.h index a514d08d3d..e9ff8e6f35 100644 --- a/include/internal/quic_wire.h +++ b/include/internal/quic_wire.h @@ -159,6 +159,9 @@ typedef struct ossl_quic_frame_ack_st { unsigned int ecn_present : 1; } OSSL_QUIC_FRAME_ACK; +/* Returns 1 if the given frame contains the given PN. */ +int ossl_quic_frame_ack_contains_pn(const OSSL_QUIC_FRAME_ACK *ack, QUIC_PN pn); + /* QUIC Frame: STREAM */ typedef struct ossl_quic_frame_stream_st { uint64_t stream_id; /* Stream ID */ diff --git a/ssl/quic/quic_wire.c b/ssl/quic/quic_wire.c index 7df32c77b2..937d16e1c8 100644 --- a/ssl/quic/quic_wire.c +++ b/ssl/quic/quic_wire.c @@ -15,6 +15,18 @@ OSSL_SAFE_MATH_UNSIGNED(uint64_t, uint64_t) +int ossl_quic_frame_ack_contains_pn(const OSSL_QUIC_FRAME_ACK *ack, QUIC_PN pn) +{ + size_t i; + + for (i = 0; i < ack->num_ack_ranges; ++i) + if (pn >= ack->ack_ranges[i].start + && pn <= ack->ack_ranges[i].end) + return 1; + + return 0; +} + /* * QUIC Wire Format Encoding * ========================= |