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@xxxxxxxxxx> --- 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 5edc21e..d6e8582 100644 --- a/arch/alpha/include/asm/errno.h +++ b/arch/alpha/include/asm/errno.h @@ -122,6 +122,8 @@ #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 */ #define EHWPOISON 139 /* Memory page has hardware error */ diff --git a/arch/mips/include/asm/errno.h b/arch/mips/include/asm/errno.h index 9e0b83f..5ae25aa 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 EHWPOISON 168 /* Memory page has hardware error */ diff --git a/arch/parisc/include/asm/errno.h b/arch/parisc/include/asm/errno.h index c4598b6..6b3bc7f 100644 --- a/arch/parisc/include/asm/errno.h +++ b/arch/parisc/include/asm/errno.h @@ -122,6 +122,8 @@ #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 */ #define EHWPOISON 257 /* Memory page has hardware error */ diff --git a/arch/sparc/include/asm/errno.h b/arch/sparc/include/asm/errno.h index ab4f9f5..5fab088 100644 --- a/arch/sparc/include/asm/errno.h +++ b/arch/sparc/include/asm/errno.h @@ -112,6 +112,8 @@ #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 */ #define EHWPOISON 135 /* Memory page has hardware error */ diff --git a/include/asm-generic/errno.h b/include/asm-generic/errno.h index 52325ca..719f60c 100644 --- a/include/asm-generic/errno.h +++ b/include/asm-generic/errno.h @@ -108,6 +108,8 @@ #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 */ #define EHWPOISON 133 /* Memory page has hardware error */ -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
