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Add 'next_message' methods to cipher and MAC vtables.

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This provides a convenient hook to be called between SSH messages, for
the crypto components to do any per-message processing like
incrementing a sequence number.
This commit is contained in:
Simon Tatham
2022-08-16 18:27:06 +01:00
parent 9160c41e7b
commit 840043f06e
12 changed files with 66 additions and 0 deletions
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6
crypto/hmac.c
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@ -167,6 +167,7 @@ const ssh2_macalg ssh_hmac_sha256 = {
.setkey = hmac_key,
.start = hmac_start,
.genresult = hmac_genresult,
.next_message = nullmac_next_message,
.text_name = hmac_text_name,
.name = "hmac-sha2-256",
.etm_name = "hmac-sha2-256-etm@openssh.com",
@ -182,6 +183,7 @@ const ssh2_macalg ssh_hmac_md5 = {
.setkey = hmac_key,
.start = hmac_start,
.genresult = hmac_genresult,
.next_message = nullmac_next_message,
.text_name = hmac_text_name,
.name = "hmac-md5",
.etm_name = "hmac-md5-etm@openssh.com",
@ -198,6 +200,7 @@ const ssh2_macalg ssh_hmac_sha1 = {
.setkey = hmac_key,
.start = hmac_start,
.genresult = hmac_genresult,
.next_message = nullmac_next_message,
.text_name = hmac_text_name,
.name = "hmac-sha1",
.etm_name = "hmac-sha1-etm@openssh.com",
@ -214,6 +217,7 @@ const ssh2_macalg ssh_hmac_sha1_96 = {
.setkey = hmac_key,
.start = hmac_start,
.genresult = hmac_genresult,
.next_message = nullmac_next_message,
.text_name = hmac_text_name,
.name = "hmac-sha1-96",
.etm_name = "hmac-sha1-96-etm@openssh.com",
@ -232,6 +236,7 @@ const ssh2_macalg ssh_hmac_sha1_buggy = {
.setkey = hmac_key,
.start = hmac_start,
.genresult = hmac_genresult,
.next_message = nullmac_next_message,
.text_name = hmac_text_name,
.name = "hmac-sha1",
.len = 20,
@ -249,6 +254,7 @@ const ssh2_macalg ssh_hmac_sha1_96_buggy = {
.setkey = hmac_key,
.start = hmac_start,
.genresult = hmac_genresult,
.next_message = nullmac_next_message,
.text_name = hmac_text_name,
.name = "hmac-sha1-96",
.len = 12,