the write command is limited in the sense that file offset and
count bytes must be multiple of the targets blocksize. for most
copy/dd etc. operations this is sufficient to work.
Change the list-head structure for in-task scsi memory allocations to
be private to scsi-lowlevel since is is never accessed from anyehwere else and
it is private to this function.
Remove the pointer to the user data in the list head and replace it with a zero length buffer at the end of the header.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
In case there is an error condition e.g. out of memory. We are heavily
disconnecting and reconnecting without any limit. This patch
adds a 5 seconds period that has to go by between 2 reconnects.
- Lots of additional tests.
- ld_iscsi updates and bugfixes.
- Fix a protocol bug where we might send > FirstBurstLength amount of data
as unsolicited data.
- Tcp keepalive improvements.
- Debugging framework.
- Add support for redirection.
- Fix reconnect bug where we would incorrectly re-queue DATA-OUT PDUs after
reconnect.
- Add a new iscsi-readcapacity16 command.
- Squelch a huge number of compiler warnings.
DPRINTF was blindly sending all debug output to fd 2 (stderr).
The new function iscsi_set_debug_fd() will set the debug fd.
In general debugging is completely disabled by default.
If a process opens more than once connection the interfaces are assigned
round-robin from the available ones. However, different processes will
uses a random interface of as starting point. This patch will also
make the redirect case handled correctly.
qemu-kvm calls iscsi_parse_url_full() with iscsi = NULL.
In case there is an invalid URL specified qemu-kvm segfaults when
it tries to set iscsi->error_string.
I tried to patch this in qemu-kvm, but the initiator_name is dirived
from the target name so this seemed to be the easier approach.
qemu-kvm calls iscsi_parse_url_full() with iscsi = NULL.
In case there is an invalid URL specified qemu-kvm segfaults when
it tries to set iscsi->error_string.
I tried to patch this in qemu-kvm, but the initiator_name is dirived
from the target name so this seemed to be the easier approach.
the write command is limited in the sense that file offset and
count bytes must be multiple of the targets blocksize. for most
copy/dd etc. operations this is sufficient to work.
This patch adds logarithmic malloc behaviour to iscsi_add_data().
Currently for each new call there is a new buffer allocated
and all old data is copied to the new buffer. Change this by
allocating at least PAGE_SIZE bytes and increase the allocation
by powers of 2 each time it does no longer fit.
The iscsi_url and iscsi_context might contain clear text
login credentials for an iscsi target. As Linux zeroes
on allocate this data might remain in memory for a long
time.
This patch adds a wrapper around all memory allocations and frees.
The idea is to get warned immediately if the application leaks memory.
Additionally the wrapper functions make it easy to add different
memory allocators or memory pools in the future.
old_first_burst_len is set but never used - remove it. Also replace an
if (!ptr)
free(ptr)
with
free(ptr)
as the check is redundant.
Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
