Bug 1098076
| Summary: | amtu shows only 4 letters of name of network interface in its output. | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Jaroslav Aster <jaster> | ||||
| Component: | amtu | Assignee: | Paul Moore <pmoore> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Jaroslav Aster <jaster> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 6.6 | CC: | jaster, ksrot, mnavrati, pmoore, sgrubb | ||||
| Target Milestone: | rc | ||||||
| Target Release: | 6.6 | ||||||
| Hardware: | i686 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: |
Previously, the name of the network interface was restricted to 4 characters on 32-bit systems and 8 characters on 64-bit system due to using the sizeof() operator instead of the strlen() function. As a consequence, AMTU did not correctly display the full network interface name in certain portions of the output. A patch has been applied to address this bug, and AMTU now always displays the full network interface name as expected.
|
Story Points: | --- | ||||
| Clone Of: | |||||||
| : | 1103360 1103361 (view as bug list) | Environment: | |||||
| Last Closed: | 2014-06-09 06:56:39 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 1103360, 1103361 | ||||||
| Attachments: |
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This is working just fine on my test system ... ?
[root@rhel6-test-2 ~]# yum install amtu
Loaded plugins: product-id
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package amtu.x86_64 0:1.0.8-10.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
amtu x86_64 1.0.8-10.el6 rhel6-rh 27 k
Transaction Summary
================================================================================
Install 1 Package(s)
Total download size: 27 k
Installed size: 50 k
Is this ok [y/N]: y
Downloading Packages:
amtu-1.0.8-10.el6.x86_64.rpm | 27 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : amtu-1.0.8-10.el6.x86_64 1/1
Verifying : amtu-1.0.8-10.el6.x86_64 1/1
Installed:
amtu.x86_64 0:1.0.8-10.el6
Complete!
[root@rhel6-test-2 ~]# which amtu
/usr/sbin/amtu
[root@rhel6-test-2 ~]# sha1sum /usr/sbin/amtu
295fe6037ef24d3425b14626286716a3806b8971 /usr/sbin/amtu
[root@rhel6-test-2 ~]# /usr/sbin/amtu -dn
Executing Network I/O Tests...
if: lo, type: 772, carrier: 1
if: eth0, type: 1, carrier: 1
if: eth1, type: 1, carrier: 1
if: dummy0, type: 1, carrier: 1
if: lo, type: 772, carrier: 1
if: eth0, type: 1, carrier: 1
if: eth1, type: 1, carrier: 1
if: dummy0, type: 1, carrier: 1
if: lo, type: 772, carrier: 1
if: eth0, type: 1, carrier: 1
if: eth1, type: 1, carrier: 1
if: dummy0, type: 1, carrier: 1
Interface list to test:
eth0
eth1
dummy0
message string: ?PFwnh|g/T!28leK@-g3vbZK!*]g!KO1GTUmw/{K23eIGchqP/<atyYxfP"zm= "ij{~Ro"8,B/6.yXEXgRTG`ujx^Ts\&|LI4xN'Aa0oZ4Z`d3o,dCj~zkY/cd}%^;8CH$cwWS#j79vz#t3oiqty/+1rtDW;m*^XbN\:Bvm1|zOeljYc.z"Yz~$rV$cCgY0U+h:R6HKk$'e8%*|3 svL& "Q\hZpK[!6H7n$aj4't12:rkbm%n8nX7F.0b-:8L~i~k8VMiDrW|rfkr>t*"C4po(;:!}r'S?1g$Ns@Et4*p7.*X+~\w*1E)HRc2(M]wM.Jwuto}4.S]v%y,0yq'ZrQ&ge,[TBeQO"vvGpuO3h&%9Lxhs:MDgD,];sM0Ci1C<Po8+rw!o)VH3=_GRhxR)XQe)VUaiSydigj/E'<$Bw+{}$eN$_o&HC S'fP>axz:}|eybn0'|Uk{O."U$d@Y"!Q&#q,S0WY^T-0pOWiT0u'A?~SkQU[.9fLs5R;\=GQ>n���
Beginning test for eth0
Received: ?PFwnh|g/T!28leK@-g3vbZK!*]g!KO1GTUmw/{K23eIGchqP/<atyYxfP"zm= "ij{~Ro"8,B/6.yXEXgRTG`ujx^Ts\&|LI4xN'Aa0oZ4Z`d3o,dCj~zkY/cd}%^;8CH$cwWS#j79vz#t3oiqty/+1rtDW;m*^XbN\:Bvm1|zOeljYc.z"Yz~$rV$cCgY0U+h:R6HKk$'e8%*|3 svL& "Q\hZpK[!6H7n$aj4't12:rkbm%n8nX7F.0b-:8L~i~k8VMiDrW|rfkr>t*"C4po(;:!}r'S?1g$Ns@Et4*p7.*X+~\w*1E)HRc2(M]wM.Jwuto}4.S]v%y,0yq'ZrQ&ge,[TBeQO"vvGpuO3h&%9Lxhs:MDgD,];sM0Ci1C<Po8+rw!o)VH3=_GRhxR)XQe)VUaiSydigj/E'<$Bw+{}$eN$_o&HC S'fP>axz:}|eybn0'|Uk{O."U$d@Y"!Q&#q,S0WY^T-0pOWiT0u'A?~SkQU[.9fLs5R;\=GQ>n
Interface eth0 passed test.
Beginning test for eth1
Received: ?PFwnh|g/T!28leK@-g3vbZK!*]g!KO1GTUmw/{K23eIGchqP/<atyYxfP"zm= "ij{~Ro"8,B/6.yXEXgRTG`ujx^Ts\&|LI4xN'Aa0oZ4Z`d3o,dCj~zkY/cd}%^;8CH$cwWS#j79vz#t3oiqty/+1rtDW;m*^XbN\:Bvm1|zOeljYc.z"Yz~$rV$cCgY0U+h:R6HKk$'e8%*|3 svL& "Q\hZpK[!6H7n$aj4't12:rkbm%n8nX7F.0b-:8L~i~k8VMiDrW|rfkr>t*"C4po(;:!}r'S?1g$Ns@Et4*p7.*X+~\w*1E)HRc2(M]wM.Jwuto}4.S]v%y,0yq'ZrQ&ge,[TBeQO"vvGpuO3h&%9Lxhs:MDgD,];sM0Ci1C<Po8+rw!o)VH3=_GRhxR)XQe)VUaiSydigj/E'<$Bw+{}$eN$_o&HC S'fP>axz:}|eybn0'|Uk{O."U$d@Y"!Q&#q,S0WY^T-0pOWiT0u'A?~SkQU[.9fLs5R;\=GQ>n
Interface eth1 passed test.
Beginning test for dummy0
Received: ?PFwnh|g/T!28leK@-g3vbZK!*]g!KO1GTUmw/{K23eIGchqP/<atyYxfP"zm= "ij{~Ro"8,B/6.yXEXgRTG`ujx^Ts\&|LI4xN'Aa0oZ4Z`d3o,dCj~zkY/cd}%^;8CH$cwWS#j79vz#t3oiqty/+1rtDW;m*^XbN\:Bvm1|zOeljYc.z"Yz~$rV$cCgY0U+h:R6HKk$'e8%*|3 svL& "Q\hZpK[!6H7n$aj4't12:rkbm%n8nX7F.0b-:8L~i~k8VMiDrW|rfkr>t*"C4po(;:!}r'S?1g$Ns@Et4*p7.*X+~\w*1E)HRc2(M]wM.Jwuto}4.S]v%y,0yq'ZrQ&ge,[TBeQO"vvGpuO3h&%9Lxhs:MDgD,];sM0Ci1C<Po8+rw!o)VH3=_GRhxR)XQe)VUaiSydigj/E'<$Bw+{}$eN$_o&HC S'fP>axz:}|eybn0'|Uk{O."U$d@Y"!Q&#q,S0WY^T-0pOWiT0u'A?~SkQU[.9fLs5R;\=GQ>n
Interface dummy0 passed test.
Network I/O Controller Test SUCCESS!
Hi Paul,
I tested it again and I found out that I can reproduce it only on i686. S390x, PPC64 and x86_64 works fine.
I checked the source code and it seems to be correct, no print limitation, no strncpy limitation, but there is difference between list of interface print and the other prints. They use name of interface from different structure. First print use name of interface from the structure witch is returned by function getifaddrs, the other prints use internal structure. Data is copied into this structure from the structure returned by function getifaddrs. I think the problem could be there.
amtu-1.0.8-10.el6.i686
kernel-2.6.32-431.el6.i686
# amtu -dn
Executing Network I/O Tests...
if: lo, type: 772, carrier: 1
if: eth0, type: 1, carrier: 1
if: dummy0, type: 1, carrier: 1
if: lo, type: 772, carrier: 1
if: eth0, type: 1, carrier: 1
if: dummy0, type: 1, carrier: 1
if: lo, type: 772, carrier: 1
if: eth0, type: 1, carrier: 1
if: eth0, type: 1, carrier: 1
if: eth0, type: 1, carrier: 1
if: dummy0, type: 1, carrier: 1
Interface list to test:
eth0
dumm
message string: 9^~K3eG#YS:zd$C;q^|{cGz:^vVZ`9`#8qCsb!og8jKM1bG?RP00mK&C`#`GQQD4+3cf0OHweJ_zL`!@!3Yz*Sn/!#>BR97{L~G,Vl@EBo]6~@H<JJDfSGaE(Kd~7%|gk}HIF[%LA`2(3m;~R:5wB1^M\`dw**R<-xXy99,Na?N{ 55wgvDR%hIO?c9Me}$LlTRK9z<L5$70vDr/,9HXXeE-7IxpC,=Q$ATP~C.)RBU^{7T|:Ey*V?';/Q.(\Qf'EE|nHxo=h,Ej\**+Y&|Nc wG<8T0yVma2Lv.%!L.s:&ubaK79u9kA>z7lXtkv$w@JlB-}OH1,hL!"8c`2LQsA=iEC<X(E%M=F`i.-Pem0}h{>%dhq?lIg1NFI|2;)<*<%29-w3z9L 9,6u2'G[cRi?Gl>N}8jqqL*f=*26NY})=OJ^ %<vdtttf@&]:Cpim;&=Mpnz@*q$4eA)YOn?KZ[JD8OjuZUP4Fui+6!s@\?_es^BH^""iwr=ghl"9zfUEo|@|�
Beginning test for eth0
Received: 9^~K3eG#YS:zd$C;q^|{cGz:^vVZ`9`#8qCsb!og8jKM1bG?RP00mK&C`#`GQQD4+3cf0OHweJ_zL`!@!3Yz*Sn/!#>BR97{L~G,Vl@EBo]6~@H<JJDfSGaE(Kd~7%|gk}HIF[%LA`2(3m;~R:5wB1^M\`dw**R<-xXy99,Na?N{ 55wgvDR%hIO?c9Me}$LlTRK9z<L5$70vDr/,9HXXeE-7IxpC,=Q$ATP~C.)RBU^{7T|:Ey*V?';/Q.(\Qf'EE|nHxo=h,Ej\**+Y&|Nc wG<8T0yVma2Lv.%!L.s:&ubaK79u9kA>z7lXtkv$w@JlB-}OH1,hL!"8c`2LQsA=iEC<X(E%M=F`i.-Pem0}h{>%dhq?lIg1NFI|2;)<*<%29-w3z9L 9,6u2'G[cRi?Gl>N}8jqqL*f=*26NY})=OJ^ %<vdtttf@&]:Cpim;&=Mpnz@*q$4eA)YOn?KZ[JD8OjuZUP4Fui+6!s@\?_es^BH^""iwr=ghl"9zfUEo
Interface eth0 passed test.
Beginning test for dumm
Received: 9^~K3eG#YS:zd$C;q^|{cGz:^vVZ`9`#8qCsb!og8jKM1bG?RP00mK&C`#`GQQD4+3cf0OHweJ_zL`!@!3Yz*Sn/!#>BR97{L~G,Vl@EBo]6~@H<JJDfSGaE(Kd~7%|gk}HIF[%LA`2(3m;~R:5wB1^M\`dw**R<-xXy99,Na?N{ 55wgvDR%hIO?c9Me}$LlTRK9z<L5$70vDr/,9HXXeE-7IxpC,=Q$ATP~C.)RBU^{7T|:Ey*V?';/Q.(\Qf'EE|nHxo=h,Ej\**+Y&|Nc wG<8T0yVma2Lv.%!L.s:&ubaK79u9kA>z7lXtkv$w@JlB-}OH1,hL!"8c`2LQsA=iEC<X(E%M=F`i.-Pem0}h{>%dhq?lIg1NFI|2;)<*<%29-w3z9L 9,6u2'G[cRi?Gl>N}8jqqL*f=*26NY})=OJ^ %<vdtttf@&]:Cpim;&=Mpnz@*q$4eA)YOn?KZ[JD8OjuZUP4Fui+6!s@\?_es^BH^""iwr=ghl"9zfUEo
Interface dumm passed test.
Network I/O Controller Test SUCCESS!
(In reply to Jaroslav Aster from comment #5) > Hi Paul, > > I tested it again and I found out that I can reproduce it only on i686. > S390x, PPC64 and x86_64 works fine. Okay, I've been able to recreate this by installing amtu.i686 on my x86_64 system. I'll look into it (thanks for your investigation above) and update this BZ when I have a fix to try. Just an additional datapoint for my benefit, compiling the amtu sources with '-m32' on x86_64 results in the same flawed behavior (expected, but always worth verification). Ah ha! I found the problem. The issue involves using a sizeof(...) instead of a strlen(...) on a 'char *'; we don't see this on 64-bit systems as the pointer is 8 bytes, which is large enough for the reproducer above, but on 32-bit systems the point is only 4 bytes which is too short. Fix coming soon ... Created attachment 900509 [details]
amtu-1.0.8-net-device_name.patch
Could you verify the above patch on your test system? It works for me, but having another successful test is always nice. Hi Paul, I tested it and it works. Thanks. I reviewed the patch and I have one comment. strdup is ok, but there is still old comment above it and it does not make sense now. /* need to malloc size of string plus null terminator */ The comment is still correct, the allocation and copy operations are just abstracted away in the strdup() call. Regardless, I'll go ahead and remove the comment in the released package as I see how it could be confusing to some. Expect a final build soon. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2014-0639.html |
Description of problem: amtu shows only 4 letters of name of network interface in its output. Version-Release number of selected component (if applicable): amtu-1.0.8-10.el6 How reproducible: Always. Steps to Reproduce: 1. Create and configure interface with name longer than 4 letters. modprobe dummy ip a add 172.29.29.29/30 dev dummy0 ip l set dev dummy0 up 2. amtu -dn Actual results: amtu -dn Executing Network I/O Tests... if: lo, type: 772, carrier: 1 if: eth0, type: 1, carrier: 0 if: eth1, type: 1, carrier: -1 if: eth2, type: 1, carrier: 1 if: eth3, type: 1, carrier: 0 if: dummy0, type: 1, carrier: 1 if: lo, type: 772, carrier: 1 if: eth2, type: 1, carrier: 1 if: dummy0, type: 1, carrier: 1 Interface list to test: eth2 dumm message string: L*esUxXF5 0=H)*=h@T4y[h*|)oT<h,J.aj^3l,\mVVnI'15#0^{0d)O/t[^a2x7HfAX/La#_6z1F^ZX-b/Vc8o]m16}5}~X]%W?k6Cc|KS.!C'z +V1(.&d=sb[2NLuI\)'MP!neMDuPD5 (d{Z2'Dp +33xTfh!+~{C30ESX)N3\[Z ]J@gVkd]JuqHI!z6j-F2#Qs'^%0BCJO"sk$Zr<m8C[f;qk3Ox@Ch'6K#Z~kDY m(Ab{Ed8{cKGf!r8p7zW]'%p;gRGiMX.1)\pB!4Jk[BZ# H=/b/\FalpvH`r3?<D*Omrrt;1j5.I~9FQJI:a^'SP4HQyvP/y@B>|+V"vfk LbH 3|h>Na4-Qp,l@kj$aPfq\H9|{5d:Fn"V?'k7x+Kz6x.^w'0"fl\i2KgK0s6gkb2eyhqo2Pf=wD}0vfbArk(=sU4kNn@ r]" Rm5W_ ;= eq3zsx+lA!iA|39Sy+_-9Y Ts$ak.wYr4ULQ!S62GohC~$j:o0a/OucVJ͜ @͜ Beginning test for eth2 Received: L*esUxXF5 0=H)*=h@T4y[h*|)oT<h,J.aj^3l,\mVVnI'15#0^{0d)O/t[^a2x7HfAX/La#_6z1F^ZX-b/Vc8o]m16}5}~X]%W?k6Cc|KS.!C'z +V1(.&d=sb[2NLuI\)'MP!neMDuPD5 (d{Z2'Dp +33xTfh!+~{C30ESX)N3\[Z ]J@gVkd]JuqHI!z6j-F2#Qs'^%0BCJO"sk$Zr<m8C[f;qk3Ox@Ch'6K#Z~kDY m(Ab{Ed8{cKGf!r8p7zW]'%p;gRGiMX.1)\pB!4Jk[BZ# H=/b/\FalpvH`r3?<D*Omrrt;1j5.I~9FQJI:a^'SP4HQyvP/y@B>|+V"vfk LbH 3|h>Na4-Qp,l@kj$aPfq\H9|{5d:Fn"V?'k7x+Kz6x.^w'0"fl\i2KgK0s6gkb2eyhqo2Pf=wD}0vfbArk(=sU4kNn@ r]" Rm5W_ ;= eq3zsx+lA!iA|39Sy+_-9Y Ts$ak.wYr4ULQ!S62GohC~$j:o0a/OucVJ Interface eth2 passed test. Beginning test for dumm Received: L*esUxXF5 0=H)*=h@T4y[h*|)oT<h,J.aj^3l,\mVVnI'15#0^{0d)O/t[^a2x7HfAX/La#_6z1F^ZX-b/Vc8o]m16}5}~X]%W?k6Cc|KS.!C'z +V1(.&d=sb[2NLuI\)'MP!neMDuPD5 (d{Z2'Dp +33xTfh!+~{C30ESX)N3\[Z ]J@gVkd]JuqHI!z6j-F2#Qs'^%0BCJO"sk$Zr<m8C[f;qk3Ox@Ch'6K#Z~kDY m(Ab{Ed8{cKGf!r8p7zW]'%p;gRGiMX.1)\pB!4Jk[BZ# H=/b/\FalpvH`r3?<D*Omrrt;1j5.I~9FQJI:a^'SP4HQyvP/y@B>|+V"vfk LbH 3|h>Na4-Qp,l@kj$aPfq\H9|{5d:Fn"V?'k7x+Kz6x.^w'0"fl\i2KgK0s6gkb2eyhqo2Pf=wD}0vfbArk(=sU4kNn@ r]" Rm5W_ ;= eq3zsx+lA!iA|39Sy+_-9Y Ts$ak.wYr4ULQ!S62GohC~$j:o0a/OucVJ Interface dumm passed test. Network I/O Controller Test SUCCESS! Expected results: amtu -dn Executing Network I/O Tests... if: lo, type: 772, carrier: 1 if: eth0, type: 1, carrier: 0 if: eth1, type: 1, carrier: -1 if: eth2, type: 1, carrier: 1 if: eth3, type: 1, carrier: 0 if: dummy0, type: 1, carrier: 1 if: lo, type: 772, carrier: 1 if: eth2, type: 1, carrier: 1 if: dummy0, type: 1, carrier: 1 Interface list to test: eth2 dummy0 message string: L*esUxXF5 0=H)*=h@T4y[h*|)oT<h,J.aj^3l,\mVVnI'15#0^{0d)O/t[^a2x7HfAX/La#_6z1F^ZX-b/Vc8o]m16}5}~X]%W?k6Cc|KS.!C'z +V1(.&d=sb[2NLuI\)'MP!neMDuPD5 (d{Z2'Dp +33xTfh!+~{C30ESX)N3\[Z ]J@gVkd]JuqHI!z6j-F2#Qs'^%0BCJO"sk$Zr<m8C[f;qk3Ox@Ch'6K#Z~kDY m(Ab{Ed8{cKGf!r8p7zW]'%p;gRGiMX.1)\pB!4Jk[BZ# H=/b/\FalpvH`r3?<D*Omrrt;1j5.I~9FQJI:a^'SP4HQyvP/y@B>|+V"vfk LbH 3|h>Na4-Qp,l@kj$aPfq\H9|{5d:Fn"V?'k7x+Kz6x.^w'0"fl\i2KgK0s6gkb2eyhqo2Pf=wD}0vfbArk(=sU4kNn@ r]" Rm5W_ ;= eq3zsx+lA!iA|39Sy+_-9Y Ts$ak.wYr4ULQ!S62GohC~$j:o0a/OucVJ͜ @͜ Beginning test for eth2 Received: L*esUxXF5 0=H)*=h@T4y[h*|)oT<h,J.aj^3l,\mVVnI'15#0^{0d)O/t[^a2x7HfAX/La#_6z1F^ZX-b/Vc8o]m16}5}~X]%W?k6Cc|KS.!C'z +V1(.&d=sb[2NLuI\)'MP!neMDuPD5 (d{Z2'Dp +33xTfh!+~{C30ESX)N3\[Z ]J@gVkd]JuqHI!z6j-F2#Qs'^%0BCJO"sk$Zr<m8C[f;qk3Ox@Ch'6K#Z~kDY m(Ab{Ed8{cKGf!r8p7zW]'%p;gRGiMX.1)\pB!4Jk[BZ# H=/b/\FalpvH`r3?<D*Omrrt;1j5.I~9FQJI:a^'SP4HQyvP/y@B>|+V"vfk LbH 3|h>Na4-Qp,l@kj$aPfq\H9|{5d:Fn"V?'k7x+Kz6x.^w'0"fl\i2KgK0s6gkb2eyhqo2Pf=wD}0vfbArk(=sU4kNn@ r]" Rm5W_ ;= eq3zsx+lA!iA|39Sy+_-9Y Ts$ak.wYr4ULQ!S62GohC~$j:o0a/OucVJ Interface eth2 passed test. Beginning test for dummy0 Received: L*esUxXF5 0=H)*=h@T4y[h*|)oT<h,J.aj^3l,\mVVnI'15#0^{0d)O/t[^a2x7HfAX/La#_6z1F^ZX-b/Vc8o]m16}5}~X]%W?k6Cc|KS.!C'z +V1(.&d=sb[2NLuI\)'MP!neMDuPD5 (d{Z2'Dp +33xTfh!+~{C30ESX)N3\[Z ]J@gVkd]JuqHI!z6j-F2#Qs'^%0BCJO"sk$Zr<m8C[f;qk3Ox@Ch'6K#Z~kDY m(Ab{Ed8{cKGf!r8p7zW]'%p;gRGiMX.1)\pB!4Jk[BZ# H=/b/\FalpvH`r3?<D*Omrrt;1j5.I~9FQJI:a^'SP4HQyvP/y@B>|+V"vfk LbH 3|h>Na4-Qp,l@kj$aPfq\H9|{5d:Fn"V?'k7x+Kz6x.^w'0"fl\i2KgK0s6gkb2eyhqo2Pf=wD}0vfbArk(=sU4kNn@ r]" Rm5W_ ;= eq3zsx+lA!iA|39Sy+_-9Y Ts$ak.wYr4ULQ!S62GohC~$j:o0a/OucVJ Interface dumm passed test. Network I/O Controller Test SUCCESS! Additional info: