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

Negotiate InitialR2T during login. Default to offer No, but update

Browse Source 
and accept what Target responds.

Store the result of the negotiated setting in the iscsi context
so we can use it later to determine how to send solicited/unsolicited
data.
This commit is contained in:
Ronnie Sahlberg
2011-01-02 12:50:00 +11:00
parent 190ea92810
commit 32228a4509
3 changed files with 23 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lib/init.c
View File

@@ -60,9 +60,11 @@ iscsi_create_context(const char *initiator_name)
iscsi->next_phase = ISCSI_PDU_LOGIN_NSG_OPNEG;
iscsi->secneg_phase = ISCSI_LOGIN_SECNEG_PHASE_OFFER_CHAP;
iscsi->max_burst_length = 262144;
iscsi->first_burst_length = 262144;
iscsi->max_burst_length = 262144;
iscsi->first_burst_length = 262144;
iscsi->max_recv_data_segment_length = 262144;
iscsi->want_initial_r2t = ISCSI_INITIAL_R2T_NO;
iscsi->use_initial_r2t = ISCSI_INITIAL_R2T_NO;
return iscsi;
}

13
lib/login.c
View File

@@ -195,12 +195,15 @@ iscsi_login_add_initialr2t(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
return 0;
}
str = (char *)"InitialR2T=Yes";
asprintf(&str, "InitialR2T=%s", iscsi->want_initial_r2t == ISCSI_INITIAL_R2T_NO ?
"No" : "Yes");
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.");
free(str);
return -1;
}
free(str);
return 0;
}
@@ -931,6 +934,14 @@ iscsi_process_login_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
iscsi->first_burst_length = strtol((char *)ptr + 17, NULL, 10);
}
if (!strncmp((char *)ptr, "InitialR2T=", 11)) {
if (!strcmp((char *)ptr + 11, "No")) {
iscsi->use_initial_r2t = ISCSI_INITIAL_R2T_NO;
} else {
iscsi->use_initial_r2t = ISCSI_INITIAL_R2T_YES;
}
}
if (!strncmp((char *)ptr, "MaxBurstLength=", 15)) {
iscsi->max_burst_length = strtol((char *)ptr + 15, NULL, 10);
}