| 1 |
Why do you want mountd to tuch /dev/sdb1 to start with? I thing you have a |
| 2 |
missconfiguration somewhere... |
| 3 |
|
| 4 |
For me most/all NFS denials went away when I restructured the folder |
| 5 |
placments on my system to acctually follow "the standard" (i.e. place |
| 6 |
stuff where NFS are supposed to read/write to them) and configure NFS |
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thereafter. |
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|
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> |
| 10 |
> I've got a server setup with the selinux/2007.0/amd64 profile. I've got |
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> most of my services working but I'm having an issue with NFS. |
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> |
| 13 |
> # uname -a |
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> Linux foo 2.6.24-gentoo-r2 #3 SMP Tue Feb 19 17:58:43 EST 2008 x86_64 |
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> Intel(R) Xeon(R) CPU E5310 @ 1.60GHz GenuineIntel GNU/Linux |
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> |
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> # sestatus |
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> SELinux status: enabled |
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> SELinuxfs mount: /selinux |
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> Current mode: permissive |
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> Mode from config file: enforcing |
| 22 |
> Policy version: 21 |
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> Policy from config file: targeted |
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> |
| 25 |
> # semodule -l |
| 26 |
> apache 1.8.0 |
| 27 |
> bind 1.5.0 |
| 28 |
> clamav 1.5.0 |
| 29 |
> courier 1.3.0 |
| 30 |
> local 1.1.0 |
| 31 |
> ldap 1.5.0 |
| 32 |
> logrotate 1.6.0 |
| 33 |
> mysql 1.5.0 |
| 34 |
> ntp 1.4.0 |
| 35 |
> portmap 1.5.0 |
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> postfix 1.7.0 |
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> rpc 1.6.0 |
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> samba 1.6.0 |
| 39 |
> screen 1.3.0 |
| 40 |
> |
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> |
| 42 |
> When a client machine tries to connect/read an NFS share, it gets denied |
| 43 |
> on the server: |
| 44 |
> |
| 45 |
> audit(1203882126.165:173): avc: denied { read } for pid=6553 |
| 46 |
> comm="rpc.mountd" name="sdb1" dev=tmpfs ino=2553 |
| 47 |
> scontext=user_u:system_r:nfsd_t |
| 48 |
> tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file |
| 49 |
> |
| 50 |
> I fed that in audit2allow and added this to my local policy: |
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> |
| 52 |
> require { |
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> class blk_file read; |
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> type fixed_disk_device_t; |
| 55 |
> type nfsd_t; |
| 56 |
> role system_r; |
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> }; |
| 58 |
> |
| 59 |
> allow nfsd_t fixed_disk_device_t:blk_file read; |
| 60 |
> |
| 61 |
> It builds okay, but I get the following error trying to load it: |
| 62 |
> |
| 63 |
> # make |
| 64 |
> Compiling targeted local module |
| 65 |
> /usr/bin/checkmodule: loading policy configuration from tmp/local.tmp |
| 66 |
> /usr/bin/checkmodule: policy configuration loaded |
| 67 |
> /usr/bin/checkmodule: writing binary representation (version 6) to |
| 68 |
> tmp/local.mod |
| 69 |
> Creating targeted local.pp policy package |
| 70 |
> rm tmp/local.mod tmp/local.mod.fc |
| 71 |
> |
| 72 |
> # semodule -u local.pp |
| 73 |
> libsepol.check_assertion_helper: assertion on line 0 violated by allow |
| 74 |
> nfsd_t fixed_disk_device_t:blk_file { read }; |
| 75 |
> libsepol.check_assertions: 1 assertion violations occured |
| 76 |
> libsemanage.semanage_expand_sandbox: Expand module failed |
| 77 |
> semodule: Failed! |
| 78 |
> |
| 79 |
> Is this being blocked by another policy? I'm new to SELinux and I'm not |
| 80 |
> sure how to debug that further. |
| 81 |
> |
| 82 |
> Does anyone know how I can resolve this? |
| 83 |
> |
| 84 |
> -- |
| 85 |
> Loren Bandiera <lorenb@××××××××××××××.com> |
| 86 |
> LB Technology Services, Inc. |
| 87 |
> |
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> |
| 89 |
> -- |
| 90 |
> gentoo-hardened@l.g.o mailing list |
| 91 |
> |
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> |
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|
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|
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-- |
| 96 |
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