admin/libiscsi
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity

Add support for Data Digest

Browse Source
This commit is contained in:
Brian Meagher
2024-05-04 18:54:21 -07:00
parent ec5d33da63
commit 882bcad53a
11 changed files with 254 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
lib/login.c
View File

@@ -206,7 +206,24 @@ iscsi_login_add_datadigest(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
return 0;
}
strncpy(str,"DataDigest=None",MAX_STRING_SIZE);
switch (iscsi->want_data_digest) {
case ISCSI_DATA_DIGEST_NONE:
strncpy(str,"DataDigest=None",MAX_STRING_SIZE);
break;
case ISCSI_DATA_DIGEST_NONE_CRC32C:
strncpy(str,"DataDigest=None,CRC32C",MAX_STRING_SIZE);
break;
case ISCSI_DATA_DIGEST_CRC32C_NONE:
strncpy(str,"DataDigest=CRC32C,None",MAX_STRING_SIZE);
break;
case ISCSI_DATA_DIGEST_CRC32C:
strncpy(str,"DataDigest=CRC32C",MAX_STRING_SIZE);
break;
default:
iscsi_set_error(iscsi, "invalid data digest value");
return -1;
}
if (iscsi_pdu_add_data(iscsi, pdu, (unsigned char *)str, strlen(str)+1)
!= 0) {
iscsi_set_error(iscsi, "Out-of-memory: pdu add data failed.");
@@ -1223,6 +1240,16 @@ iscsi_process_login_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
}
}
if (!strncmp(ptr, "DataDigest=", 11)) {
if (!strcmp(ptr + 11, "CRC32C")) {
iscsi->want_data_digest
= ISCSI_DATA_DIGEST_CRC32C;
} else {
iscsi->want_data_digest
= ISCSI_DATA_DIGEST_NONE;
}
}
if (!strncmp(ptr, "FirstBurstLength=", 17)) {
iscsi->first_burst_length = strtol(ptr + 17, NULL, 10);
}
@@ -1393,6 +1420,7 @@ iscsi_process_login_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
iscsi->is_loggedin = 1;
iscsi_itt_post_increment(iscsi);
iscsi->header_digest = iscsi->want_header_digest;
iscsi->data_digest = iscsi->want_data_digest;
ISCSI_LOG(iscsi, 2, "login successful");
pdu->callback(iscsi, SCSI_STATUS_GOOD, NULL, pdu->private_data);
} else {