diff options
Diffstat (limited to 'drivers/target/target_core_fabric_lib.c')
| -rw-r--r-- | drivers/target/target_core_fabric_lib.c | 105 |
1 files changed, 50 insertions, 55 deletions
diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c index 1e031d81e59e..6600ae44f29d 100644 --- a/drivers/target/target_core_fabric_lib.c +++ b/drivers/target/target_core_fabric_lib.c @@ -132,33 +132,27 @@ static int iscsi_get_pr_transport_id( unsigned char *buf) { u32 off = 4, padding = 0; + int isid_len; u16 len = 0; spin_lock_irq(&se_nacl->nacl_sess_lock); /* - * From spc4r17 Section 7.5.4.6: TransportID for initiator - * ports using SCSI over iSCSI. + * Only null terminate the last field. * - * The null-terminated, null-padded (see 4.4.2) ISCSI NAME field - * shall contain the iSCSI name of an iSCSI initiator node (see - * RFC 3720). The first ISCSI NAME field byte containing an ASCII - * null character terminates the ISCSI NAME field without regard for - * the specified length of the iSCSI TransportID or the contents of - * the ADDITIONAL LENGTH field. - */ - len = sprintf(&buf[off], "%s", se_nacl->initiatorname); - /* - * Add Extra byte for NULL terminator - */ - len++; - /* - * If there is ISID present with the registration and *format code == 1 - * 1, use iSCSI Initiator port TransportID format. + * From spc4r37 section 7.6.4.6: TransportID for initiator ports using + * SCSI over iSCSI. + * + * Table 507 TPID=0 Initiator device TransportID * - * Otherwise use iSCSI Initiator device TransportID format that - * does not contain the ASCII encoded iSCSI Initiator iSID value - * provied by the iSCSi Initiator during the iSCSI login process. + * The null-terminated, null-padded (see 4.3.2) ISCSI NAME field shall + * contain the iSCSI name of an iSCSI initiator node (see RFC 7143). + * The first ISCSI NAME field byte containing an ASCII null character + * terminates the ISCSI NAME field without regard for the specified + * length of the iSCSI TransportID or the contents of the ADDITIONAL + * LENGTH field. */ + len = sprintf(&buf[off], "%s", se_nacl->initiatorname); + off += len; if ((*format_code == 1) && (pr_reg->isid_present_at_reg)) { /* * Set FORMAT CODE 01b for iSCSI Initiator port TransportID @@ -166,8 +160,12 @@ static int iscsi_get_pr_transport_id( */ buf[0] |= 0x40; /* - * From spc4r17 Section 7.5.4.6: TransportID for initiator - * ports using SCSI over iSCSI. Table 390 + * From spc4r37 Section 7.6.4.6 + * + * Table 508 TPID=1 Initiator port TransportID. + * + * The ISCSI NAME field shall not be null-terminated + * (see 4.3.2) and shall not be padded. * * The SEPARATOR field shall contain the five ASCII * characters ",i,0x". @@ -177,23 +175,24 @@ static int iscsi_get_pr_transport_id( * (see RFC 3720) in the form of ASCII characters that are the * hexadecimal digits converted from the binary iSCSI initiator * session identifier value. The first ISCSI INITIATOR SESSION - * ID field byte containing an ASCII null character + * ID field byte containing an ASCII null character terminates + * the ISCSI INITIATOR SESSION ID field without regard for the + * specified length of the iSCSI TransportID or the contents + * of the ADDITIONAL LENGTH field. */ - buf[off+len] = 0x2c; off++; /* ASCII Character: "," */ - buf[off+len] = 0x69; off++; /* ASCII Character: "i" */ - buf[off+len] = 0x2c; off++; /* ASCII Character: "," */ - buf[off+len] = 0x30; off++; /* ASCII Character: "0" */ - buf[off+len] = 0x78; off++; /* ASCII Character: "x" */ + buf[off++] = 0x2c; /* ASCII Character: "," */ + buf[off++] = 0x69; /* ASCII Character: "i" */ + buf[off++] = 0x2c; /* ASCII Character: "," */ + buf[off++] = 0x30; /* ASCII Character: "0" */ + buf[off++] = 0x78; /* ASCII Character: "x" */ len += 5; - buf[off+len] = pr_reg->pr_reg_isid[0]; off++; - buf[off+len] = pr_reg->pr_reg_isid[1]; off++; - buf[off+len] = pr_reg->pr_reg_isid[2]; off++; - buf[off+len] = pr_reg->pr_reg_isid[3]; off++; - buf[off+len] = pr_reg->pr_reg_isid[4]; off++; - buf[off+len] = pr_reg->pr_reg_isid[5]; off++; - buf[off+len] = '\0'; off++; - len += 7; + + isid_len = sprintf(buf + off, "%s", pr_reg->pr_reg_isid); + off += isid_len; + len += isid_len; } + buf[off] = '\0'; + len += 1; spin_unlock_irq(&se_nacl->nacl_sess_lock); /* * The ADDITIONAL LENGTH field specifies the number of bytes that follow @@ -236,7 +235,7 @@ static int iscsi_get_pr_transport_id_len( */ if (pr_reg->isid_present_at_reg) { len += 5; /* For ",i,0x" ASCII separator */ - len += 7; /* For iSCSI Initiator Session ID + Null terminator */ + len += strlen(pr_reg->pr_reg_isid); *format_code = 1; } else *format_code = 0; @@ -265,9 +264,7 @@ static char *iscsi_parse_pr_out_transport_id( char **port_nexus_ptr) { char *p; - u32 tid_len, padding; int i; - u16 add_len; u8 format_code = (buf[0] & 0xc0); /* * Check for FORMAT CODE 00b or 01b from spc4r17, section 7.5.4.6: @@ -293,23 +290,11 @@ static char *iscsi_parse_pr_out_transport_id( */ if (out_tid_len) { /* The shift works thanks to integer promotion rules */ - add_len = get_unaligned_be16(&buf[2]); - - tid_len = strlen(&buf[4]); - tid_len += 4; /* Add four bytes for iSCSI Transport ID header */ - tid_len += 1; /* Add one byte for NULL terminator */ - padding = ((-tid_len) & 3); - if (padding != 0) - tid_len += padding; - - if ((add_len + 4) != tid_len) { - pr_debug("LIO-Target Extracted add_len: %hu " - "does not match calculated tid_len: %u," - " using tid_len instead\n", add_len+4, tid_len); - *out_tid_len = tid_len; - } else - *out_tid_len = (add_len + 4); + *out_tid_len = get_unaligned_be16(&buf[2]); + /* Add four bytes for iSCSI Transport ID header */ + *out_tid_len += 4; } + /* * Check for ',i,0x' separator between iSCSI Name and iSCSI Initiator * Session ID as defined in Table 390 - iSCSI initiator port TransportID @@ -334,6 +319,16 @@ static char *iscsi_parse_pr_out_transport_id( * iscsi_target.c:lio_sess_get_initiator_sid() */ for (i = 0; i < 12; i++) { + /* + * The first ISCSI INITIATOR SESSION ID field byte + * containing an ASCII null character terminates the + * ISCSI INITIATOR SESSION ID field without regard for + * the specified length of the iSCSI TransportID or the + * contents of the ADDITIONAL LENGTH field. + */ + if (*p == '\0') + break; + if (isdigit(*p)) { p++; continue; |