| | 1 | """ Please make sure you read the README file COMPLETELY BEFORE reading anything below. |
| | 2 | It is very critical that you read coding guidelines in Section E in README file. |
| | 3 | """ |
| | 4 | |
| | 5 | from xnu import * |
| | 6 | from utils import * |
| | 7 | |
| | 8 | # Macro: walkkauthcache |
| | 9 | @lldb_command('walkkauthcache') |
| | 10 | def WalkKauthCache(cmd_args=None): |
| | 11 | """ Walks the bins of the kauth credential hash cache and prints out the |
| | 12 | number of bins and bin usage information. |
| | 13 | """ |
| | 14 | PrintKauthCache() |
| | 15 | # EndMacro: walkkauthcache |
| | 16 | |
| | 17 | def PrintKauthCache(cmd_args=None): |
| | 18 | """ Routine to determine the size of the kauth cache, walk the bins |
| | 19 | and print out usage information. |
| | 20 | """ |
| | 21 | anchor = unsigned(kern.globals.kauth_cred_table_anchor) |
| | 22 | alloc_info_struct = anchor - sizeof('struct _mhead') |
| | 23 | alloc_info = kern.GetValueFromAddress(alloc_info_struct, 'struct _mhead*') |
| | 24 | alloc_size = unsigned(alloc_info.mlen) - (sizeof('struct _mhead')) |
| | 25 | table_entries = alloc_size / sizeof('struct kauth_cred_entry_head') |
| | 26 | anchor = kern.globals.kauth_cred_table_anchor |
| | 27 | print "Cred cache has: " + str(table_entries) + " buckets\n" |
| | 28 | print "Number of items in each bucket ... \n" |
| | 29 | for i in range(0, table_entries): |
| | 30 | numinbucket = 0 |
| | 31 | for kauth_cred in IterateTAILQ_HEAD(anchor[i], "cr_link"): |
| | 32 | numinbucket += 1 |
| | 33 | #print str(kauth_cred.cr_posix) |
| | 34 | #print str(kauth_cred.cr_ref) |
| | 35 | print str(numinbucket) + "\n" |
projects / apple / xnu.git / blame_incremental