08554d6b33
This defines a routine that combines the Type Enforcement portion of one sid with the MLS portion from the other sid to arrive at a new sid. This would be used to define a sid for a security association that is to be negotiated by IKE as well as for determing the sid for open requests and connection-oriented child sockets. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/*
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* Multi-level security (MLS) policy operations.
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*
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* Author : Stephen Smalley, <sds@epoch.ncsc.mil>
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*/
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/*
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* Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
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*
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* Support for enhanced MLS infrastructure.
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*
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* Copyright (C) 2004-2006 Trusted Computer Solutions, Inc.
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*/
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#ifndef _SS_MLS_H_
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#define _SS_MLS_H_
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#include "context.h"
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#include "policydb.h"
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/*
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* Copies the MLS range from `src' into `dst'.
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*/
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static inline int mls_copy_context(struct context *dst,
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struct context *src)
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{
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int l, rc = 0;
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/* Copy the MLS range from the source context */
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for (l = 0; l < 2; l++) {
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dst->range.level[l].sens = src->range.level[l].sens;
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rc = ebitmap_cpy(&dst->range.level[l].cat,
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&src->range.level[l].cat);
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if (rc)
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break;
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}
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return rc;
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}
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int mls_compute_context_len(struct context *context);
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void mls_sid_to_context(struct context *context, char **scontext);
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int mls_context_isvalid(struct policydb *p, struct context *c);
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int mls_context_to_sid(char oldc,
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char **scontext,
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struct context *context,
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struct sidtab *s,
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u32 def_sid);
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int mls_from_string(char *str, struct context *context, gfp_t gfp_mask);
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int mls_convert_context(struct policydb *oldp,
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struct policydb *newp,
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struct context *context);
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int mls_compute_sid(struct context *scontext,
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struct context *tcontext,
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u16 tclass,
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u32 specified,
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struct context *newcontext);
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int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
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struct context *usercon);
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#endif /* _SS_MLS_H */
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