>>> Mike Christie <[email protected]> schrieb am 09.11.2011 um 21:05 in Nachricht <[email protected]>: > On 11/07/2011 01:37 PM, Thomas Weichert wrote: > > Hi, > > > > in the last few days I encountered a problem on my SLES 11.1 Linux > > with the open-iscsi package in version 2.0-871 respectively 0.872. I > > investigated the problem and found out that in my system there are two > > root users with uid = 0 (sadly, this is required). Therefore I digged > > deeper and found out that the problem most probably lies in the two > > code snippets where "root" is defnied explicitely. Those are usr/ > > mgmt_ipc.c around line 549 with: > > > > if (!mgmt_peeruser(fd, user) || strncmp(user, "root", PEERUSER_MAX)) { > > err = MGMT_IPC_ERR_ACCESS; > > goto err; > > } > > > > as well as usr/statics.c around line 7: > > > > static struct passwd root_pw = { > > .pw_name = "root", > > } > > > > When the Linux command `whoami` returns something different than > > "root", open-iscsi will not work. > > > > As far as I understand the issue, the function call to mgmt_peeruser() > > in mgmt_ipc.c sets the variable user to the currently logged in user > > name and then it is compared to "root". If my root-user is named > > differently, the strncmp function fails of course. I did not > > investigate the code in statics.c further, whether it plays a role or > > not, since a change to mgmt_ipc.c solves my problem. > > > > Is there a chance to fix this issue just by checking if the user has > > sufficient rights, e.g. has uid=0, or is there any special reason for > > demanding a user named root? > > If you have a uid=0, but you do not have the username of root can you > write files like the ones in /etc/iscsi or /var/lib/iscsi or can you > write to some proc/sysfs files like the > /sys/block/sdX/device/queue_depth one?
Hi Mike! I guess so, because the open() syscall doesn't care about the user's name; just about the UID (and GIDs). Ulrich -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
