函数源码 |
Source File:kernel\user_namespace.c |
Create Date:2022-07-27 12:22:18 |
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1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 | ssize_t proc_projid_map_write(struct file *file, const char __user *buf, size_t size, loff_t *ppos){ struct seq_file *seq = file->private_data; struct user_namespace *ns = seq->private; struct user_namespace *seq_ns = seq_user_ns(seq); if (!ns->parent) return -EPERM; if ((seq_ns != ns) && (seq_ns != ns->parent)) return -EPERM; /* Anyone can set any valid project id no capability needed */ return map_write(file, buf, size, ppos, -1, &ns->projid_map, &ns->parent->projid_map);} |