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path: root/drivers/target/iscsi
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2012-02-07iscsi: use IP_FREEBIND socket optionDax Kelson1-0/+8
Use IP_FREEBIND socket option so that iscsi portal configuration with explicit IP addresses can happen during boot, before network interfaces have been assigned IPs. This is especially important on systemd based Linux boxes where system boot happens asynchronously and non-trivial configuration must be done to get targetcli.service to start synchronously after the network is configured. Reference: http://lists.fedoraproject.org/pipermail/devel/2011-October/158025.html Signed-off-by: Dax Kelson <dkelson@gurulabs.com> Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Cc: "Andy Grover" <agrover@redhat.com> Cc: "Lennart Poettering" <lennart@poettering.net> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-02-07iscsi_target: in_aton needs linux/inet.hStephen Rothwell1-0/+1
Fixes this error after a recent nfs cleanup: drivers/target/iscsi/iscsi_target_configfs.c: In function 'lio_target_call_addnptotpg': drivers/target/iscsi/iscsi_target_configfs.c:214:3: error: implicit declaration of function 'in6_pton' [-Werror=implicit-function-declaration] drivers/target/iscsi/iscsi_target_configfs.c:239:3: error: implicit declaration of function 'in_aton' [-Werror=implicit-function-declaration] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-01-18iscsi-target: Fix discovery with INADDR_ANY and IN6ADDR_ANY_INITNicholas Bellinger3-8/+62
This patch addresses a bug with sendtargets discovery where INADDR_ANY (0.0.0.0) + IN6ADDR_ANY_INIT ([0:0:0:0:0:0:0:0]) network portals where incorrectly being reported back to initiators instead of the address of the connecting interface. To address this, save local socket ->getname() output during iscsi login setup, and makes iscsit_build_sendtargets_response() return these TargetAddress keys when INADDR_ANY or IN6ADDR_ANY_INIT portals are in use. Reported-by: Dax Kelson <dkelson@gurulabs.com> Reported-by: Andy Grover <agrover@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-01-18iscsi-target: Fix up a few assignmentsJesper Juhl1-2/+2
A statement such as struct iscsi_node_attrib *na = na = iscsit_tpg_get_node_attrib(sess); has undefined behaviour since there are two assignments to 'na', strictly speaking (the order in which side-effects from the assignments take place is undefined since there's no intervening sequence point), and it looks unintentional in any case. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-01-18iscsi-target: make one-bit bitfields unsignedDan Carpenter1-2/+2
Signed bitfields are a problem because instead of being 1 or 0 like you'd expect they are 0 and -1. It doesn't cause a problem in this case but sparse complains: drivers/target/iscsi/iscsi_target_core.h:564:56: error: dubious one-bit signed bitfield Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-01-18iscsi-target: Fix double list_add with iscsit_alloc_buffs rejectNicholas Bellinger1-1/+1
This patch fixes a bug where the iscsit_add_reject_from_cmd() call from a failure to iscsit_alloc_buffs() was incorrectly passing add_to_conn=1 and causing a double list_add after iscsi_cmd->i_list had already been added in iscsit_handle_scsi_cmd(). Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-01-18iscsi-target: Fix reject release handling in iscsit_free_cmd()Nicholas Bellinger1-0/+11
This patch addresses a bug where iscsit_free_cmd() was incorrectly calling iscsit_release_cmd() for ISCSI_OP_REJECT because iscsi_add_reject*() will overwrite the original iscsi_cmd->iscsi_opcode assignment. This bug was introduced with the following commit: commit 0be67f2ed8f577d2c72d917928394c5885fa9134 Author: Nicholas Bellinger <nab@linux-iscsi.org> Date: Sun Oct 9 01:48:14 2011 -0700 iscsi-target: Remove SCF_SE_LUN_CMD flag abuses and was manifesting itself as list corruption with the following: [ 131.191092] ------------[ cut here ]------------ [ 131.191092] WARNING: at lib/list_debug.c:53 __list_del_entry+0x8d/0x98() [ 131.191092] Hardware name: VMware Virtual Platform [ 131.191092] list_del corruption. prev->next should be ffff880022d3c100, but was 6b6b6b6b6b6b6b6b [ 131.191092] Modules linked in: tcm_vhost ib_srpt ib_cm ib_sa ib_mad ib_core tcm_qla2xxx qla2xxx tcm_loop tcm_fc libfc scsi_transport_fc crc32c iscsi_target_mod target_core_stgt scsi_tgt target_core_pscsi target_core_file target_core_iblock target_core_mod configfs ipv6 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sr_mod cdrom sd_mod e1000 ata_piix libata mptspi mptscsih mptbase [last unloaded: scsi_wait_scan] [ 131.191092] Pid: 2250, comm: iscsi_ttx Tainted: G W 3.2.0-rc4+ #42 [ 131.191092] Call Trace: [ 131.191092] [<ffffffff8103b553>] warn_slowpath_common+0x80/0x98 [ 131.191092] [<ffffffff8103b5ff>] warn_slowpath_fmt+0x41/0x43 [ 131.191092] [<ffffffff811d0279>] __list_del_entry+0x8d/0x98 [ 131.191092] [<ffffffffa01395c9>] transport_lun_remove_cmd+0x9b/0xb7 [target_core_mod] [ 131.191092] [<ffffffffa013a55c>] transport_generic_free_cmd+0x5d/0x71 [target_core_mod] [ 131.191092] [<ffffffffa01a012b>] iscsit_free_cmd+0x1e/0x27 [iscsi_target_mod] [ 131.191092] [<ffffffffa01a13be>] iscsit_close_connection+0x14d/0x5b2 [iscsi_target_mod] [ 131.191092] [<ffffffffa0196a0c>] iscsit_take_action_for_connection_exit+0xdb/0xe0 [iscsi_target_mod] [ 131.191092] [<ffffffffa01a55d4>] iscsi_target_tx_thread+0x15cb/0x1608 [iscsi_target_mod] [ 131.191092] [<ffffffff8103609a>] ? check_preempt_wakeup+0x121/0x185 [ 131.191092] [<ffffffff81030801>] ? __dequeue_entity+0x2e/0x33 [ 131.191092] [<ffffffffa01a4009>] ? iscsit_send_text_rsp+0x25f/0x25f [iscsi_target_mod] [ 131.191092] [<ffffffffa01a4009>] ? iscsit_send_text_rsp+0x25f/0x25f [iscsi_target_mod] [ 131.191092] [<ffffffff8138f706>] ? schedule+0x55/0x57 [ 131.191092] [<ffffffff81056c7d>] kthread+0x7d/0x85 [ 131.191092] [<ffffffff81399534>] kernel_thread_helper+0x4/0x10 [ 131.191092] [<ffffffff81056c00>] ? kthread_worker_fn+0x16d/0x16d [ 131.191092] [<ffffffff81399530>] ? gs_change+0x13/0x13 Reported-by: <jrepac@yahoo.com> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-14iscsi-target: fix chap identifier simple_strtoul usageNicholas Bellinger1-3/+7
This patch makes chap_server_compute_md5() use proper unsigned long usage for the CHAP_I (identifier) and check for values beyond 255 as per RFC-1994. Reported-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-14target: remove useless castsJörn Engel9-48/+48
A reader should spend an extra moment whenever noticing a cast, because either something special is going on that deserves extra attention or, as is all too often the case, the code is wrong. These casts, afaics, have all been useless. They cast a foo* to a foo*, cast a void* to the assigned type, cast a foo* to void*, before assigning it to a void* variable, etc. In a few cases I also removed an additional &...[0], which is equally useless. Lastly I added three FIXMEs where, to the best of my judgement, the code appears to have a bug. It would be good if someone could check these. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-14target: header reshuffle, part2Christoph Hellwig13-23/+11
This reorganized the headers under include/target into: - target_core_base.h stays as is with all target-wide data stuctures and defines - target_core_backend.h contains the whole interface to I/O backends - target_core_fabric.h contains the whole interface to fabric modules Except for those only the various configfs macro headers stay around. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-06iscsi-target: Fix hex2bin warn_unused compile messageNicholas Bellinger1-2/+4
Fix the following compile warning with hex2bin() usage: drivers/target/iscsi/iscsi_target_auth.c: In function ‘chap_string_to_hex’: drivers/target/iscsi/iscsi_target_auth.c:35: warning: ignoring return value of ‘hex2bin’, declared with attribute warn_unused_result Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-06target: remove unused struct fieldsJörn Engel1-2/+0
Some are never used, some are set but never read, dev_hoq_count is incremented and decremented, but never read. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-06iscsi-target: Use kmemdup rather than duplicating its implementationThomas Meyer2-6/+3
The semantic patch that makes this change is available in scripts/coccinelle/api/memdup.cocci. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-06iscsi-target: Add missing F_BIT for iscsi_tm_rspNicholas Bellinger1-0/+1
This patch sets the missing ISCSI_FLAG_CMD_FINAL bit in iscsit_send_task_mgt_rsp() for a struct iscsi_tm_rsp PDU. This usage is hardcoded for all TM response PDUs in RFC-3720 section 10.6. Reported-by: whucecil <whucecil1999@gmail.com> Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-06iscsi-target: Fix residual count hanlding + remove iscsi_cmd->residual_countNicholas Bellinger2-5/+6
This patch fixes iscsi-target handling of underflow where residual data is causing an OOPs by using the incorrect iscsi_cmd_t->data_length initially assigned in iscsit_allocate_se_cmd(). It resets iscsi_cmd_t->data_length from se_cmd_t->data_length after transport_generic_allocate_tasks() has been invoked in iscsit_handle_scsi_cmd() RX context, and converts iscsi_cmd->residual_count usage to access iscsi_cmd->se_cmd.residual_count to get the proper residual count set by target-core. Reported-by: <lists@internyc.net> Cc: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-06iscsi-target: Fix sess allocation leak in iscsi_login_zero_tsih_s1Nicholas Bellinger1-5/+8
This patch adds missing kfree() for an allocation in iscsi_login_zero_tsih_s1() code, and make transport_init_session() check for IS_ERR() returns. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-12-06target: Address legacy PYX_TRANSPORT_* return code breakageNicholas Bellinger2-9/+3
This patch removes legacy usage of PYX_TRANSPORT_* return codes in a number of locations and addresses cases where transport_generic_request_failure() was returning the incorrect sense upon CHECK_CONDITION status after the v3.1 converson to use errno return codes. This includes the conversion of transport_generic_request_failure() to process cmd->scsi_sense_reason and handle extra TCM_RESERVATION_CONFLICT before calling transport_send_check_condition_and_sense() to queue up response status. It also drops PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES legacy usgae, and returns TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE w/ a response for these cases. transport_generic_allocate_tasks(), transport_generic_new_cmd(), backend SCF_SCSI_DATA_SG_IO_CDB ->do_task(), and emulated ->execute_task() have all been updated to set se_cmd->scsi_sense_reason and return errno codes universally upon failure. This includes cmd->scsi_sense_reason assignment in target_core_alua.c, target_core_pr.c and target_core_cdb.c emulation code. Finally it updates fabric modules to remove the legacy usage, and for TFO->new_cmd_map() callers forwards return values outside of fabric code. iscsi-target has also been updated to remove a handful of special cases related to the cleanup and signaling QUEUE_FULL handling w/ ft_write_pending() (v2: Drop extra SCF_SCSI_CDB_EXCEPTION check during failure from transport_generic_new_cmd, and re-add missing task->task_error_status assignment in transport_complete_task) Cc: Christoph Hellwig <hch@lst.de> Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds3-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-06Merge branch 'for-next' of ↵Linus Torvalds1-5/+6
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: use ->exectute_task for all CDB emulation target: remove SCF_EMULATE_CDB_ASYNC target: refactor transport_emulate_control_cdb target: pass the se_task to the CDB emulation callback target: split core_scsi3_emulate_pr target: split core_scsi2_emulate_crh target: Add generic active I/O shutdown logic target: add back error handling in transport_complete_task target/pscsi: blk_make_request() returns an ERR_PTR() target: Remove core TRANSPORT_FREE_CMD_INTR usage target: Make TFO->check_stop_free return free status iscsi-target: Fix non-immediate TMR handling iscsi-target: Add missing CMDSN_LOWER_THAN_EXP check in iscsit_handle_scsi_cmd target: Avoid double list_del for aborted se_tmr_req target: Minor cleanups to core_tmr_drain_tmr_list target: Fix wrong se_tmr being added to drain_tmr_list target: Fix incorrect se_cmd assignment in core_tmr_drain_tmr_list target: Check -ENOMEM to signal QUEUE_FULL from fabric callbacks tcm_loop: Add explict read buffer memset for SCF_SCSI_CONTROL_SG_IO_CDB target: Fix compile warning w/ missing module.h include
2011-11-02iscsi-target: Fix non-immediate TMR handlingNicholas Bellinger1-4/+3
This patch addresses two issues with non immediate TMR handling in iscsit_handle_task_mgt_cmd(). The first involves breakage due to v3.1-rc conversion of iscsit_sequence_cmd(), which upon good status would hit the iscsit_add_reject_from_cmd() block of code. This patch adds an explict check for CMDSN_ERROR_CANNOT_RECOVER. The second adds a check to return when non immediate TMR operation is detected after iscsit_ack_from_expstatsn(), as iscsit_sequence_cmd() -> iscsit_execute_cmd() will have called transport_generic_handle_tmr() for the non immediate TMR case already. Cc: Andy Grover <agrover@redhat.com> Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-11-02iscsi-target: Add missing CMDSN_LOWER_THAN_EXP check in iscsit_handle_scsi_cmdNicholas Bellinger1-1/+3
This patch adds a missing CMDSN_LOWER_THAN_EXP return check for iscsit_sequence_cmd() in iscsit_handle_scsi_cmd() that was incorrectly dropped during the v3.1-rc cleanups to use iscsit_sequence_cmd(). Cc: Andy Grover <agrover@redhat.com> Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-31drivers/target: Add module.h to drivers/target files as required.Paul Gortmaker1-0/+1
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31drivers/target: Add export.h to files as required.Paul Gortmaker2-0/+2
So that they have access to EXPORT_SYMBOL variants and THIS_MODULE. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-25Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (59 commits) MAINTAINERS: linux-m32r is moderated for non-subscribers linux@lists.openrisc.net is moderated for non-subscribers Drop default from "DM365 codec select" choice parisc: Kconfig: cleanup Kernel page size default Kconfig: remove redundant CONFIG_ prefix on two symbols cris: remove arch/cris/arch-v32/lib/nand_init.S microblaze: add missing CONFIG_ prefixes h8300: drop puzzling Kconfig dependencies MAINTAINERS: microblaze-uclinux@itee.uq.edu.au is moderated for non-subscribers tty: drop superfluous dependency in Kconfig ARM: mxc: fix Kconfig typo 'i.MX51' Fix file references in Kconfig files aic7xxx: fix Kconfig references to READMEs Fix file references in drivers/ide/ thinkpad_acpi: Fix printk typo 'bluestooth' bcmring: drop commented out line in Kconfig btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888' doc: raw1394: Trivial typo fix CIFS: Don't free volume_info->UNC until we are entirely done with it. treewide: Correct spelling of successfully in comments ...
2011-10-24target: Fix incorrect transport_sent usageNicholas Bellinger2-3/+2
This patch converts target-core to use se_cmd->t_transport_sent instead of a duplicated se_cmd->transport_sent member in a handful of locations. It also updates iscsi_target to properly use ->t_transport_sent instead of it's own iscsi_cmd_t->transport_sent value that was not being assigned. Reported-by: Christoph Hellwig <hch@lst.de> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24target: Cleanup unused target_core_base.h bitsChristoph Hellwig2-1/+4
This is a squashed version of the following target_core_base.h cleanup patches: target: remove the unused SHUTDOWN_SIGS defintion target: remove unused se_mem leftovers target: remove the unused map_func_t typedef target: move TRANSPORT_IOV_DATA_BUFFER to the iscsi-specific code Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24iscsi-target: Remove SCF_SE_LUN_CMD flag abusesNicholas Bellinger4-56/+28
This patch removes a number of SCF_SE_LUN_CMD flag abuses within iscsi-target code to determine when iscsit_release_cmd() or transport_generic_free_cmd() should be called while releasing an individual iscsi_cmd descriptor. In the place of SCF_SE_LUN_CMD checks, this patch converts existing code to use a new iscsit_free_cmd() that inspects iscsi_cmd->iscsi_opcode types to determine which of the above functions should be invoked. It also removes the now unnecessary special case checking in iscsit_release_commands_from_conn(). (hch: Use iscsit_free_cmd instead of open-coded alternative) Reported-by: Christoph Hellwig <hch@lst.de> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24target: Convert ->transport_wait_for_tasks usage to transport_generic_free_cmdNicholas Bellinger2-36/+17
This patch converts se_cmd->transport_wait_for_tasks(se_cmd, 1) usage to use transport_generic_free_cmd() directly in target-core and iscsi-target fabric usage. The includes: *) Removal of the optional transport_generic_free_cmd() call from within transport_generic_wait_for_tasks() *) Usage of existing SCF_SUPPORTED_SAM_OPCODE to determine when transport_generic_wait_for_tasks() processing may occur instead of checking se_cmd->transport_wait_for_tasks() *) Move transport_generic_wait_for_tasks() call ahead of core_dec_lacl_count() and transport_lun_remove_cmd() in transport_generic_free_cmd() to follow existing logic for iscsi-target w/ se_cmd->transport_wait_for_tasks(se_cmd, 1) *) Removal of se_cmd->transport_wait_for_tasks() function pointer *) Rename transport_generic_wait_for_tasks() -> transport_wait_for_tasks(), and add docbook comment. *) Add EXPORT_SYMBOL for transport_wait_for_tasks() For the case in iscsi_target_erl2.c:iscsit_prepare_cmds_for_realligance() where se_cmd->transport_wait_for_tasks(se_cmd, 0) is called, this patch adds a direct call to transport_wait_for_tasks(). (hch: Fix transport_generic_free_cmd() usage in iscsit_release_commands_from_conn) (nab: Add patch: Ensure that TMRs hit wait_for_tasks logic during release) Reported-by: Christoph Hellwig <hch@lst.de> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24target: Have core_tmr_alloc_req() take an explicit GFP_xxx flagRoland Dreier1-1/+2
Testing in_interrupt() to know when sleeping is allowed is not really reliable (since eg it won't be true if the caller is holding a spinlock). Instead have the caller tell core_tmr_alloc_req() what GFP_xxx to use; every caller except tcm_qla2xxx can use GFP_KERNEL. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24iscsi-target: use native hex2bin for chap_string_to_hexAndy Shevchenko1-31/+3
This patch converts chap_string_to_hex() to use hex2bin() instead of the internal chap_asciihex_to_binaryhex(). (nab: Fix up minor compile breakage + typo) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24target: Remove session_reinstatement parameter from ->transport_wait_for_tasksNicholas Bellinger2-10/+9
This patch removes the unnecessary session_reinstatement parameter from se_cmd->transport_wait_for_tasks(), logic in transport_generic_wait_for_tasks, and usage within iscsi-target code. This also includes the removal of the 'bool' return from transport_put_cmd() + transport_generic_free_cmd() that is no longer necessary. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24target: push session reinstatement out of transport_generic_free_cmdChristoph Hellwig1-1/+1
Push session reinstatement out of transport_generic_free_cmd into the only caller that actually needs it. Clean up transport_generic_free_cmd a bit, and remove the useless comment. I'd love to add a more useful kerneldoc comment for it, but as this point I'm still a bit confused in where it stands in the command release stack. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-10-24iscsi-target: always call transport_handle_cdb_directChristoph Hellwig1-1/+1
iscsit_task_reassign_complete is always called from the TX thread, so handle the CDB directly instead of offloading it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-27treewide: Correct spelling of successfully in commentsJoe Perches1-1/+1
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-16iscsi-target: Fix sendpage breakage with proper padding+DataDigest iovec offsetsNicholas Bellinger1-7/+15
This patch fixes a bug in the iscsit_fe_sendpage_sg() transmit codepath that was originally introduced with the v3.1 iscsi-target merge that incorrectly uses hardcoded cmd->iov_data_count values to determine cmd->iov_data[] offsets for extra outgoing padding and DataDigest payload vectors. This code is obviously incorrect for the DataDigest enabled case with sendpage offload, and this fix ensures correct operation for padding + DataDigest, padding only, and DataDigest only cases. The bug was introduced during a pre-merge change in iscsit_fe_sendpage_sg() to natively use struct scatterlist instead of the legacy v3.0 struct se_mem logic. Cc: Andy Grover <agrover@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16iscsi-target: Disable markers + remove dangerous local scope array usageNicholas Bellinger2-243/+7
This patch makes iscsi-target explictly disable OFMarker=Yes and IFMarker=yes parameter key usage during iscsi login by setting IFMarkInt_Reject and OFMarkInt_Reject values in iscsi_enforce_integrity_rules() to effectively disable iscsi marker usage. With this patch, an initiator proposer asking to enable either marker parameter keys will be issued a 'No' response, and the target sets OFMarkInt + IFMarkInt parameter key response to 'Irrelevant'. With markers disabled during iscsi login, this patch removes the problematic on-stack local-scope array for marker intervals in iscsit_do_rx_data() + iscsit_do_tx_data(), and other related marker code in iscsi_target_util.c. This fixes a potentional stack smashing scenario with small range markers enabled and a large MRDSL as reported by DanC here: [bug report] target: stack can be smashed http://www.spinics.net/lists/target-devel/msg00453.html Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22iscsi-target: Fix iscsit_allocate_se_cmd_for_tmr failure path bugsDan Carpenter1-3/+1
This patch fixes two bugs in allocation failure handling in iscsit_allocate_se_cmd_for_tmr(): This first reported by DanC is a free-after call to transport_free_se_cmd(), this patch drops the transport_free_se_cmd() call all together, as iscsit_release_cmd() will release existing allocations as expected. The second is a bug where iscsi_cmd_t was being leaked on a cmd->tmr_req allocation failure, so make this jump to iscsit_release_cmd() as well. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22iscsi-target: Implement iSCSI target IPv6 address printing.Chris Boot1-13/+3
The iSCSI target configfs code to print out an initiator's IPv6 address is not fully implemented. This patch uses snprintf() with the "%pI6c" format string to format the IPv6 address for display purposes. Signed-off-by: Chris Boot <bootc@bootc.net> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22iscsi-target: forever loop bug in iscsit_attach_ooo_cmdsn()Dan Carpenter1-1/+1
This patch fixes a forever loop bug in iscsit_attach_ooo_cmdsn() while walking sess->sess_ooo_cmdsn_list when the received CmdSN is less than the tail of the list. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22iscsi-target: remove duplicate returnDan Carpenter1-1/+0
We returned on the line before already. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22iscsi-target: Fix leak on failure in iscsi_copy_param_list()Jesper Juhl1-27/+16
We leak memory if the allocations for 'new_param->name' or 'new_param->value' fail in iscsi_target_parameters.c::iscsi_copy_param_list() We also do a lot of variable assignments that are completely pointless if the allocations fail. So, let's move the allocations before the assignments and also make sure that we free whatever was allocated to one if the allocation fail. There's also some small CodingStyle fixups in there (curly braces on both branches of if statement, only one variable per line) since I was in the area anyway. And finally, error messages in the function are put on a single line for easy grep'abillity. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22target: Use ERR_CAST inlined functionThomas Meyer1-2/+2
Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...)) The semantic patch that makes this output is available in scripts/coccinelle/api/err_cast.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-07-28target: iscsi_target depends on NETRandy Dunlap1-0/+1
iscsi target code uses lots on network interface functions, so it should depend on NET. Fixes many build errors when NET is not enabled: ERROR: "kernel_sendmsg" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "in_aton" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "sock_release" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "kernel_listen" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "kernel_setsockopt" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "kernel_recvmsg" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "kernel_accept" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "sock_create" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "kernel_bind" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! ERROR: "in6_pton" [drivers/target/iscsi/iscsi_target_mod.ko] undefined! Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-07-27iscsi-target: Fix CONFIG_SMP=n and CONFIG_MODULES=n build failureNicholas Bellinger1-1/+6
This patch fixes the following CONFIG_SMP=n and CONFIG_MODULES=n build failure, because iscsit_thread_get_cpumask() is defined as a macro in iscsi_target.c, but needed by iscsi_target_login.c drivers/built-in.o: In function `iscsi_post_login_handler': iscsi_target_login.c:(.text+0x13a315): undefined reference to `iscsit_thread_get_cpumask' iscsi_target_login.c:(.text+0x13a4b4): undefined reference to `iscsit_thread_get_cpumask' make: *** [.tmp_vmlinux1] Error 1 Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-07-27iscsi-target: Fix snprintf usage with MAX_PORTAL_LENNicholas Bellinger1-1/+1
This patch makes lio_target_call_addnptotpg() use sprintf() with MAX_PORTAL_LEN + 1 to address the following smatch warning: drivers/target/iscsi/iscsi_target_configfs.c +184 lio_target_call_addnptotpg(21) error: snprintf() chops off the last chars of 'name': 257 vs 256 Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-07-27iscsi-target: Fix uninitialized usage of cmd->pad_bytesNicholas Bellinger1-3/+3
This patch fixes an uninitialized usage of cmd->pad_bytes inside of iscsit_handle_text_cmd() introduced during a v4.1 change to use cmd members instead of local pad_bytes variables. Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-07-27iscsi-target: strlen() doesn't count the terminatorDan Carpenter1-1/+1
This patch fixes an off by one check in iscsit_add_tiqn() because the NULL terminator isn't taken into consideration. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-07-27iscsi-target: Fix NULL dereference on allocation failureDan Carpenter1-1/+1
This patch fixes a bug in iscsi_target_init_negotiation() where the "goto out" path dereferences "login" which is NULL upon a memory allocation failure. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-07-26iscsi-target: Add iSCSI fabric support for target v4.1Nicholas Bellinger39-0/+22097
The Linux-iSCSI.org target module is a full featured in-kernel software implementation of iSCSI target mode (RFC-3720) for the current WIP mainline target v4.1 infrastructure code for the v3.1 kernel. More information can be found here: http://linux-iscsi.org/wiki/ISCSI This includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd() (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]) (nab: Fix 32-bit compile warnings) Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andy Grover <agrover@redhat.com> Acked-by: Roland Dreier <roland@kernel.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
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