issue: 3759513 Fix blocking SSL_sendfile() #141
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SSL_sendfile() creates 3 iov elements, however, for a blocking socket only a signle element is expected in partial write handling. Signed-off-by: Dmytro Podgornyi <dmytrop@nvidia.com>
| if (m_p_zc_owner) { | ||
| /* | ||
| * For zerocopy case we create 3 scatter-gather elements in this order: | ||
| * [0] TLS header which includes IV for TLS 1.2 | ||
| * [1] Payload | ||
| * [2] Trailer which contains TAG and TLS 1.3 type if applicable | ||
| */ | ||
| assert(iov_max >= 3); | ||
| (void)iov_max; | ||
| tx_attr.attr.sz_iov = 3; |
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Should we use TLS_IOV_SIZE here?
and in the static_assert above
| @@ -186,6 +186,8 @@ enum : size_t { | |||
| TLS_RECORD_MAX = 16384U, | |||
| /* Block size big enough to hold TLS header/trailer for zerocopy records. */ | |||
| TLS_ZC_BLOCK = 32U, | |||
| /* Maximum number of scatter-gather elements for TCP send operation. */ | |||
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Please add to the comment why 3 ...
|
Last check introduces some degradation that should be investigated |
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Description
SSL_sendfile() creates 3 iov elements, however, for a blocking socket only a signle element is expected in partial write handling.
What
Fix partial write handling in blocking TLS offload path.
Why ?
Blocking SSL_sendfile() fix.
Change type
What kind of change does this PR introduce?
Check list