Mercurial > dropbear

annotate libtomcrypt/src/mac/f9/f9_memory_multi.c @ 1857:6022df862942

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Use DSCP for IP QoS traffic classes The previous TOS values are deprecated and not used by modern traffic classifiers. This sets AF21 for "interactive" traffic (with a tty). Non-tty traffic sets AF11 - that indicates high throughput but is not lowest priority (which would be CS1 or LE). This differs from the CS1 used by OpenSSH, it lets interactive git over SSH have higher priority than background least effort traffic. Dropbear's settings here should be suitable with the diffservs used by CAKE qdisc.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 25 Jan 2022 17:32:20 +0800
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
382
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parents:
diff changeset
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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diff changeset
2 *
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diff changeset
3 * LibTomCrypt is a library that provides various cryptographic
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diff changeset
4 * algorithms in a highly modular and flexible manner.
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diff changeset
5 *
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diff changeset
6 * The library is free for all purposes without any express
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diff changeset
7 * guarantee it works.
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diff changeset
8 */
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diff changeset
9 #include "tomcrypt.h"
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diff changeset
10 #include <stdarg.h>
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diff changeset
11
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
12 /**
382
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diff changeset
13 @file f9_memory_multi.c
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diff changeset
14 f9 support, process multiple blocks of memory, Tom St Denis
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diff changeset
15 */
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diff changeset
16
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diff changeset
17 #ifdef LTC_F9_MODE
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18
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diff changeset
19 /**
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
20 f9 multiple blocks of memory
382
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21 @param cipher The index of the desired cipher
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diff changeset
22 @param key The secret key
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diff changeset
23 @param keylen The length of the secret key (octets)
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24 @param out [out] The destination of the authentication tag
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25 @param outlen [in/out] The max size and resulting size of the authentication tag (octets)
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26 @param in The data to send through f9
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diff changeset
27 @param inlen The length of the data to send through f9 (octets)
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28 @param ... tuples of (data,len) pairs to f9, terminated with a (NULL,x) (x=don't care)
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29 @return CRYPT_OK if successful
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
30 */
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
31 int f9_memory_multi(int cipher,
382
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diff changeset
32 const unsigned char *key, unsigned long keylen,
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diff changeset
33 unsigned char *out, unsigned long *outlen,
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diff changeset
34 const unsigned char *in, unsigned long inlen, ...)
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diff changeset
35 {
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diff changeset
36 int err;
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diff changeset
37 f9_state *f9;
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diff changeset
38 va_list args;
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diff changeset
39 const unsigned char *curptr;
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diff changeset
40 unsigned long curlen;
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41
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diff changeset
42 LTC_ARGCHK(key != NULL);
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43 LTC_ARGCHK(in != NULL);
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diff changeset
44 LTC_ARGCHK(out != NULL);
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45 LTC_ARGCHK(outlen != NULL);
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46
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diff changeset
47 /* allocate ram for f9 state */
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diff changeset
48 f9 = XMALLOC(sizeof(f9_state));
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diff changeset
49 if (f9 == NULL) {
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
50 return CRYPT_MEM;
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51 }
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52
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
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diff changeset
53 /* f9 process the message */
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diff changeset
54 if ((err = f9_init(f9, cipher, key, keylen)) != CRYPT_OK) {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
55 goto LBL_ERR;
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
56 }
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parents:
diff changeset
57 va_start(args, inlen);
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
58 curptr = in;
382
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diff changeset
59 curlen = inlen;
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diff changeset
60 for (;;) {
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diff changeset
61 /* process buf */
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parents:
diff changeset
62 if ((err = f9_process(f9, curptr, curlen)) != CRYPT_OK) {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
63 goto LBL_ERR;
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parents:
diff changeset
64 }
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
65 /* step to next */
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parents:
diff changeset
66 curptr = va_arg(args, const unsigned char*);
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parents:
diff changeset
67 if (curptr == NULL) {
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parents:
diff changeset
68 break;
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
69 }
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
70 curlen = va_arg(args, unsigned long);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
71 }
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
72 if ((err = f9_done(f9, out, outlen)) != CRYPT_OK) {
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
73 goto LBL_ERR;
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
74 }
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
75 LBL_ERR:
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
76 #ifdef LTC_CLEAN_STACK
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
77 zeromem(f9, sizeof(f9_state));
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
78 #endif
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
79 XFREE(f9);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
80 va_end(args);
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
81 return err;
382
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
82 }
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
83
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
84 #endif
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
85
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
86 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
87 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
Matt Johnston <matt@ucc.asn.au>
parents: 1435
diff changeset
88 /* commit time: $Format:%ai$ */