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1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
#ifndef _LINUX_SECUREBITS_H
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#define _LINUX_SECUREBITS_H 1
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#define SECUREBITS_DEFAULT 0x00000000
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extern unsigned securebits;
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/* When set UID 0 has no special privileges. When unset, we support
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inheritance of root-permissions and suid-root executable under
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compatibility mode. We raise the effective and inheritable bitmasks
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*of the executable file* if the effective uid of the new process is
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0. If the real uid is 0, we raise the inheritable bitmask of the
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executable file. */
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#define SECURE_NOROOT 0
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/* When set, setuid to/from uid 0 does not trigger capability-"fixes"
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to be compatible with old programs relying on set*uid to loose
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privileges. When unset, setuid doesn't change privileges. */
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#define SECURE_NO_SETUID_FIXUP 2
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/* Each securesetting is implemented using two bits. One bit specify
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whether the setting is on or off. The other bit specify whether the
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setting is fixed or not. A setting which is fixed cannot be changed
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from user-level. */
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#define issecure(X) ( (1 << (X+1)) & SECUREBITS_DEFAULT ? \
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(1 << (X)) & SECUREBITS_DEFAULT : \
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(1 << (X)) & securebits )
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#endif /* !_LINUX_SECUREBITS_H */
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