Function report |
Source Code:kernel\user_namespace.c |
Create Date:2022-07-28 11:18:53 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Create a new user namespace, deriving the creator from the user in the* passed credentials, and replacing that user with the new root user for the* new namespace.* This is called by copy_creds(), which will finish setting the target task's* credentials.
Proto:int create_user_ns(struct cred *new)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct cred * | new |
81 | ucounts = inc_user_namespaces(parent_ns, owner) |
92 | If current_chrooted() Then Go to fail_dec |
100 | If Not kuid_has_mapping(parent_ns, owner) || Not kgid_has_mapping(parent_ns, group) Then Go to fail_dec |
109 | ret = ns_alloc_inum( & ns) |
112 | ops = userns_operations |
114 | atomic_set( & count, 1) |
120 | INIT_WORK( & work, free_user_ns) |
121 | When i < UCOUNT_COUNTS cycle |
122 | ucount_max[i] = INT_MAX |
127 | mutex_lock( & userns_state_mutex) |
133 | init_rwsem( & keyring_sem) |
136 | If Not setup_userns_sysctls(ns) Then Go to fail_keyring |
139 | set_cred_user_ns(new, ns) |
140 | Return 0 |
141 | fail_keyring : |
145 | ns_free_inum( & ns) |
146 | fail_free : |
148 | fail_dec : |
150 | fail : |
151 | Return ret |
Name | Describe |
---|---|
unshare_userns | |
copy_creds | Copy a certificate |
Source code conversion tool public plug-in interface | X |
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