函数逻辑报告

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Brick Technologies Co., Ltd

Source Code:security\apparmor\label.c Create Date:2022-07-27 21:45:10
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：label_compound_match - find perms for full compound label*@profile: profile to find perms for*@label: label to check access permissions for*@start: state to start match in*@subns: whether to do permission checks on components in a subns*@request:

函数原型：static int label_compound_match(struct aa_profile *profile, struct aa_label *label, unsigned int state, bool subns, unsigned int request, struct aa_perms *perms)

返回类型：int

参数：

类型参数名称
struct aa_profile *profile
struct aa_label *label
unsigned intstate
boolsubns
unsigned intrequest
struct aa_perms *perms
1283  如果非aa_ns_visible - test if @view is visible from @curr*@curr: namespace to treat as the parent (NOT NULL)*@view: namespace to test if visible from @curr (NOT NULL)*@subns: whether view of a subns is allowed* Returns: true if @view is visible from @curr else 则继续下一循环
1285  state等于match a profile and its associated ns component if needed* Assumes visibility test has already been done.* If a subns profile is not to be matched should be prescreened with* visibility test.
1286  如果非state则转到:fail
1288  转到:next
1292  perms等于allperms
1293  返回:0
1295  :
1297  如果非aa_ns_visible - test if @view is visible from @curr*@curr: namespace to treat as the parent (NOT NULL)*@view: namespace to test if visible from @curr (NOT NULL)*@subns: whether view of a subns is allowed* Returns: true if @view is visible from @curr else 则继续下一循环
1299  state等于aa_dfa_match - traverse @dfa to find state @str stops at*@dfa: the dfa to match @str against (NOT NULL)*@start: the state of the dfa to start matching in*@str: the null terminated string of bytes to match against the dfa (NOT NULL)* aa_dfa_match will
1300  state等于match a profile and its associated ns component if needed* Assumes visibility test has already been done.* If a subns profile is not to be matched should be prescreened with* visibility test.
1301  如果非state则转到:fail
1304  aa_compute_perms(Generic policy DFA specific rule types will be subsections of it , state, perms)
1305  aa_apply_modes_to_perms - apply namespace and profile flags to perms*@profile: that perms where computed from*@perms: perms to apply mode modifiers to* TODO: split into profile and ns based flags for when accumulating perms
1306  如果allow按位与request的值不等于request则返回:负EACCES
1309  返回:0
1311  fail :
1312  perms等于nullperms
1313  返回:state
调用者
名称描述
aa_label_matchaa_label_match - do a multi-component label match*@profile: profile to match against (NOT NULL)*@label: label to match (NOT NULL)*@state: state to start in*@subns: whether to match subns components*@request: permission request*@perms: Returns computed
label_matchlabel_match - do a multi-component label match*@profile: profile to match against (NOT NULL)*@label: label to match (NOT NULL)*@stack: whether this is a stacking request*@state: state to start in*@subns: whether to match subns components*@request: