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Date: Mon, 07 Mar 2011 15:02:18 +0000 From: David Howells <dhowells@...hat.com> To: linux-security-module@...r.kernel.org, keyrings@...ux-nfs.org, linux-nfs@...r.kernel.org, linux-cifs@...r.kernel.org, linux-afs@...ts.infradead.org, linux-api@...r.kernel.org Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: [PATCH 2/2] Define ENONAMESERVICE and ENAMEUNKNOWN to indicate name service errors Now that the kernel has filesystems (and possibly other services) that want to look up internet addresses corresponding to arbitrary hostnames retrieved from the server, it would seem useful to provide a couple of error codes to indicate problems with the look up, rather than overloading some other error code. Define ENONAMESERVICE to indicate "Network name service unavailable". This can be used to indicate, for example, that an attempt was made by dns_query() to make a query, but the name server (e.g. a DNS server) it is supposed to contact didn't answer or that it couldn't determine the location of a suitable server. Define ENAMEUNKNOWN to indicate "Network name unknown". This can be used to indicate, for example, that an attempt was made by dns_query() to make a query, but the name server (e.g. a DNS server) replied indicating that it had no matching records. The DNS query upcall program can report these to keyctl_reject() so that cached failed queries will respond with these errors until they expire. Signed-off-by: David Howells <dhowells@...hat.com> --- arch/alpha/include/asm/errno.h | 2 ++ arch/mips/include/asm/errno.h | 2 ++ arch/parisc/include/asm/errno.h | 2 ++ arch/sparc/include/asm/errno.h | 2 ++ include/asm-generic/errno.h | 2 ++ 5 files changed, 10 insertions(+), 0 deletions(-) diff --git a/arch/alpha/include/asm/errno.h b/arch/alpha/include/asm/errno.h index 519663c..ee8a3f0 100644 --- a/arch/alpha/include/asm/errno.h +++ b/arch/alpha/include/asm/errno.h @@ -122,5 +122,7 @@ #define ERFKILL 138 /* Operation not possible due to RF-kill */ #define ENOAUTHSERVICE 139 /* Authentication service not available */ +#define ENONAMESERVICE 140 /* Network name service unavailable */ +#define ENAMEUNKNOWN 141 /* Network name unknown */ #endif diff --git a/arch/mips/include/asm/errno.h b/arch/mips/include/asm/errno.h index 5fa7fed..faed965 100644 --- a/arch/mips/include/asm/errno.h +++ b/arch/mips/include/asm/errno.h @@ -121,6 +121,8 @@ #define ERFKILL 167 /* Operation not possible due to RF-kill */ #define ENOAUTHSERVICE 168 /* Authentication service not available */ +#define ENONAMESERVICE 169 /* Network name service unavailable */ +#define ENAMEUNKNOWN 170 /* Network name unknown */ #define EDQUOT 1133 /* Quota exceeded */ diff --git a/arch/parisc/include/asm/errno.h b/arch/parisc/include/asm/errno.h index 6a19346..63ee0bc 100644 --- a/arch/parisc/include/asm/errno.h +++ b/arch/parisc/include/asm/errno.h @@ -122,5 +122,7 @@ #define ERFKILL 256 /* Operation not possible due to RF-kill */ #define ENOAUTHSERVICE 257 /* Authentication service not available */ +#define ENONAMESERVICE 258 /* Network name service unavailable */ +#define ENAMEUNKNOWN 259 /* Network name unknown */ #endif diff --git a/arch/sparc/include/asm/errno.h b/arch/sparc/include/asm/errno.h index ab3a26a..f40d5ae 100644 --- a/arch/sparc/include/asm/errno.h +++ b/arch/sparc/include/asm/errno.h @@ -112,5 +112,7 @@ #define ERFKILL 134 /* Operation not possible due to RF-kill */ #define ENOAUTHSERVICE 135 /* Authentication service not available */ +#define ENONAMESERVICE 136 /* Network name service unavailable */ +#define ENAMEUNKNOWN 137 /* Network name unknown */ #endif diff --git a/include/asm-generic/errno.h b/include/asm-generic/errno.h index bcf1908..25878f1 100644 --- a/include/asm-generic/errno.h +++ b/include/asm-generic/errno.h @@ -108,5 +108,7 @@ #define ERFKILL 132 /* Operation not possible due to RF-kill */ #define ENOAUTHSERVICE 133 /* Authentication service not available */ +#define ENONAMESERVICE 134 /* Network name service unavailable */ +#define ENAMEUNKNOWN 135 /* Network name unknown */ #endif -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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