TLS #3
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TLS #3
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SIMD crypto algorithms won't be called through cryptd.
* Reserve room for TLS header in skb headroom. * Reset TCP connection if we can not encrypt data on it instead of retransmit it in plaintext. This leads to warning similar to #984 - leave as TODO for now.
current transmission limit.
include/linux/skbuff.h
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| * queue and it's processed (first time) in tcp_write_xmit(). This time the @skb | ||
| * isn't scheduled yet, so we can use skb->dev for our needs to avoid extending | ||
| * sk_buff. We use the least significant bit to be sure that this isn't a | ||
| * pointer to not to break anything. TLS message type << 1 is alwasy smaller |
net/ipv4/tcp_output.c
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| #ifdef CONFIG_SECURITY_TEMPESTA | ||
| /* | ||
| * This isn't the only place where tcp_transmit_skb() is called, | ||
| * but this is the only place were we are from Tempesta FW |
net/ipv4/tcp_output.c
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| * encryption here and get the best TLS record size. | ||
| * | ||
| * TODO Sometimes HTTP servers send headers and response body in | ||
| * different TCP segments, so coalese skbs for transmission to |
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coalese -> coalesce
aleksostapenko
approved these changes
Dec 31, 2018
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Call Tempesta TLS encryption from
tcp_write_xmit().