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41 results

global_macros

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    • Stephen Smalley's avatar
      423fd19d
      Update netlink socket classes. · 423fd19d
      Stephen Smalley authored
      
      Define new netlink socket security classes introduced by upstream kernel commit
      6c6d2e9bde1c1c87a7ead806f8f5e2181d41a652 ("selinux: update netlink socket
      classes").  This was merged in Linux 4.2 and is therefore only required
      for Android kernels based on 4.2 or newer (e.g. the android-4.4 branch
      of the kernel/common tree).
      
      Add the new socket classes to socket_class_set.
      Add an initial set of allow rules although further refinement
      will likely be necessary.  Any allow rule previously written
      on :netlink_socket may need to be rewritten or duplicated for
      one or more of the more specific classes.  For now, we retain
      the existing :netlink_socket rules for compatibility on older kernels.
      
      Signed-off-by: default avatarStephen Smalley <sds@tycho.nsa.gov>
      
      (cherry picked from commit 01d95c23)
      
      Change-Id: Ic00a0d474730cda91ba3bc387e0cc14482f82114
      423fd19d
      History
      Update netlink socket classes.
      Stephen Smalley authored
      
      Define new netlink socket security classes introduced by upstream kernel commit
      6c6d2e9bde1c1c87a7ead806f8f5e2181d41a652 ("selinux: update netlink socket
      classes").  This was merged in Linux 4.2 and is therefore only required
      for Android kernels based on 4.2 or newer (e.g. the android-4.4 branch
      of the kernel/common tree).
      
      Add the new socket classes to socket_class_set.
      Add an initial set of allow rules although further refinement
      will likely be necessary.  Any allow rule previously written
      on :netlink_socket may need to be rewritten or duplicated for
      one or more of the more specific classes.  For now, we retain
      the existing :netlink_socket rules for compatibility on older kernels.
      
      Signed-off-by: default avatarStephen Smalley <sds@tycho.nsa.gov>
      
      (cherry picked from commit 01d95c23)
      
      Change-Id: Ic00a0d474730cda91ba3bc387e0cc14482f82114
    mls_macros 1.22 KiB
    ########################################
    #
    # gen_cats(N)
    #
    # declares categores c0 to c(N-1)
    #
    define(`decl_cats',`dnl
    category c$1;
    ifelse(`$1',`$2',,`decl_cats(incr($1),$2)')dnl
    ')
    
    define(`gen_cats',`decl_cats(0,decr($1))')
    
    ########################################
    #
    # gen_sens(N)
    #
    # declares sensitivites s0 to s(N-1) with dominance
    # in increasing numeric order with s0 lowest, s(N-1) highest
    #
    define(`decl_sens',`dnl
    sensitivity s$1;
    ifelse(`$1',`$2',,`decl_sens(incr($1),$2)')dnl
    ')
    
    define(`gen_dominance',`s$1 ifelse(`$1',`$2',,`gen_dominance(incr($1),$2)')')
    
    define(`gen_sens',`
    # Each sensitivity has a name and zero or more aliases.
    decl_sens(0,decr($1))
    
    # Define the ordering of the sensitivity levels (least to greatest)
    dominance { gen_dominance(0,decr($1)) }
    ')
    
    ########################################
    #
    # gen_levels(N,M)
    #
    # levels from s0 to (N-1) with categories c0 to (M-1)
    #
    define(`decl_levels',`dnl
    level s$1:c0.c$3;
    ifelse(`$1',`$2',,`decl_levels(incr($1),$2,$3)')dnl
    ')
    
    define(`gen_levels',`decl_levels(0,decr($1),decr($2))')
    
    ########################################
    #
    # Basic level names for system low and high
    #
    define(`mls_systemlow',`s0')
    define(`mls_systemhigh',`s`'decr(mls_num_sens):c0.c`'decr(mls_num_cats)')