Mercurial > dropbear

annotate libtomcrypt/src/pk/asn1/der/sequence/der_sequence_free.c @ 1902:4a6725ac957c

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Revert "Don't include sk keys at all in KEX list" This reverts git commit f972813ecdc7bb981d25b5a63638bd158f1c8e72. The sk algorithms need to remain in the sigalgs list so that they are included in the server-sig-algs ext-info message sent by the server. RFC8308 for server-sig-algs requires that all algorithms are listed (though OpenSSH client 8.4p1 tested doesn't require that)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 24 Mar 2022 13:42:08 +0800
parents 6dba84798cd5
children
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382
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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10
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11 /**
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12 @file der_sequence_free.c
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13 ASN.1 DER, free's a structure allocated by der_decode_sequence_flexi(), Tom St Denis
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14 */
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15
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16 #ifdef LTC_DER
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17
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18 /**
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19 Free memory allocated by der_decode_sequence_flexi()
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20 @param in The list to free
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21 */
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22 void der_sequence_free(ltc_asn1_list *in)
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23 {
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24 ltc_asn1_list *l;
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25
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26 if (!in) return;
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27
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28 /* walk to the start of the chain */
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29 while (in->prev != NULL || in->parent != NULL) {
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30 if (in->parent != NULL) {
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31 in = in->parent;
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32 } else {
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33 in = in->prev;
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34 }
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35 }
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36
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37 /* now walk the list and free stuff */
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38 while (in != NULL) {
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39 /* is there a child? */
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40 if (in->child) {
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41 /* disconnect */
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42 in->child->parent = NULL;
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43 der_sequence_free(in->child);
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44 }
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45
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46 switch (in->type) {
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47 case LTC_ASN1_SETOF: break;
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48 case LTC_ASN1_INTEGER : if (in->data != NULL) { mp_clear(in->data); } break;
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49 default : if (in->data != NULL) { XFREE(in->data); }
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50 }
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51
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52 /* move to next and free current */
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53 l = in->next;
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54 XFREE(in);
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55 in = l;
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56 }
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57 }
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58
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59 #endif
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60
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61 /* ref: $Format:%D$ */
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62 /* git commit: $Format:%H$ */
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63 /* commit time: $Format:%ai$ */