Messages in this thread |  | | From | "Petr Vandrovec" <> | Date | Mon, 14 May 2001 21:14:26 MET-1 | Subject | Re: uid_t and gid_t vs. __kernel_uid_t and __kernel_gid_t |
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On 14 May 01 at 15:00, Khachaturov, Vassilii wrote:
> I had to communicate uid/gid from an application down > to a driver, and discovered that uid and gid in user > space are different from those in kernel space.
ncpfs uses 'unsigned long' in its ncp_mount_data_v4, as MIPS uses 'long' type for uid/gid. Unfortunately it still needs conversions on some archs, so maybe using u_int64_t is just best solution (AFAIK as MIPS unsigned long is 64bit, you have to use u_int64_t if you want same type accross architectures).
Kernel part then just checks wheter uid == (__kernel_uid_t)uid and gives up if they differ. Best regards, Petr Vandrovec vandrove@vc.cvut.cz - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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