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Incorrect handling of CHAP_C encoding during CHAP_R computation

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This commit is contained in:
lishiao144
2025-05-29 11:51:50 +08:00
committed by GitHub
parent 676afd07a0
commit a57f51708c
1 changed files with 4 additions and 2 deletions
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6
lib/login.c
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@@ -937,7 +937,8 @@ iscsi_login_add_chap_response(struct iscsi_context *iscsi, struct iscsi_pdu *pdu
/* bidirectional chap */
if (iscsi->target_user[0]) {
char target_chap_c[MAX_CHAP_R_SIZE * 2] = {0};
char initiator_chap_c_hex[MAX_CHAP_R_SIZE * 4 + 1] = { 0 };
iscsi->target_chap_i++;
snprintf(str, MAX_STRING_SIZE, "CHAP_I=%d",
iscsi->target_chap_i);
@@ -962,6 +963,7 @@ iscsi_login_add_chap_response(struct iscsi_context *iscsi, struct iscsi_pdu *pdu
c = target_chap_c[i];
cc[0] = i2h((c >> 4)&0x0f);
cc[1] = i2h((c )&0x0f);
memcpy(initiator_chap_c_hex + i * 2, cc, 2);
if (iscsi_pdu_add_data(iscsi, pdu, &cc[0], 2) != 0) {
iscsi_set_error(iscsi, "Out-of-memory: pdu add "
"data failed.");
@@ -977,7 +979,7 @@ iscsi_login_add_chap_response(struct iscsi_context *iscsi, struct iscsi_pdu *pdu
compute_chap_r(iscsi, iscsi->target_chap_i,
(unsigned char *)iscsi->target_passwd,
(unsigned char *)target_chap_c,
(unsigned char *)initiator_chap_c_hex,
(unsigned char *)iscsi->target_chap_r);
}