The Lounge What is on Your Mind? Please Welcome Yoda (Bipin Ajith) to the Moderation Team Post 303038580 by Akshay Hegde on Friday 6th of September 2019 01:04:31 PM
Welcome Yoda 👍
This User Gave Thanks to Akshay Hegde For This Post:
 
Test Your Knowledge in Computers #65
Difficulty: Easy
In the TCP/IP model, end-to-end connectivity is provided from host-to-host in the transport layer.
True or False?

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avc_context_to_sid(3)					     SELinux API documentation					     avc_context_to_sid(3)

NAME
avc_context_to_sid, avc_sid_to_context, avc_get_initial_sid - obtain and manipulate SELinux security ID's SYNOPSIS
#include <selinux/selinux.h> #include <selinux/avc.h> int avc_context_to_sid(security_context_t ctx, security_id_t *sid); int avc_sid_to_context(security_id_t sid, security_context_t *ctx); int avc_get_initial_sid(const char *name, security_id_t *sid); DESCRIPTION
Security ID's (SID's) are opaque representations of security contexts, managed by the userspace AVC. avc_context_to_sid() returns a SID for the given context in the memory referenced by sid. avc_sid_to_context() returns a copy of the context represented by sid in the memory referenced by ctx. The user must free the copy with freecon(3). avc_get_initial_sid() returns a SID for the kernel initial security identifier specified by name. RETURN VALUE
avc_context_to_sid() and avc_sid_to_context() return zero on success. On error, -1 is returned and errno is set appropriately. ERRORS
ENOMEM An attempt to allocate memory failed. NOTES
As of libselinux version 2.0.86, SID's are no longer reference counted. A SID will be valid from the time it is first obtained until the next call to avc_destroy(3). The sidget(3) and sidput(3) functions, formerly used to adjust the reference count, are no-ops and are depre- cated. AUTHOR
Eamon Walsh <ewalsh@tycho.nsa.gov> SEE ALSO
avc_init(3), avc_has_perm(3), avc_cache_stats(3), avc_add_callback(3), getcon(3), freecon(3), selinux(8) 27 May 2004 avc_context_to_sid(3)

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