Download FreeBSD Architecture Handbook by FreeBSD Documentation Project PDF

By FreeBSD Documentation Project

An in-depth advisor of the FreeBSD working process structure.

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P_prison). h: struct proc { ... struct prison *p_prison; ... c, the function then copies the pr structure, which is filled with all the information from the original jail structure, over to the p->p_prison structure. It then does a bitwise OR of p->p_flag with the constant P_JAILED, meaning that the calling process is now recognized as jailed. The parent process of each process, forked within the jail, is the program jail itself, as it calls the jail(2) system call. When the program is executed through execve, it inherits the properties of its parents proc structure, therefore it has the p->p_flag set, and the p->p_prison structure is filled.

22 mpo_destroy_socket_label void mpo_destroy_socket_label(struct label *label); Parameter Description label Locking Socket label being destroyed Destroy the label on a socket. In this entry point, a policy module should free any internal storage associated with label so that it may be destroyed. 23 mpo_destroy_socket_peer_label void mpo_destroy_socket_peer_label(struct label *peerlabel); 46 Chapter 6 The TrustedBSD MAC Framework Parameter Description Locking peerlabel Socket peer label being destroyed Destroy the peer label on a socket.

27 mpo_copy_mbuf_label void mpo_copy_mbuf_label(struct label *src, struct label *dest); Parameter Description src Source label dest Destination label Locking Copy the label information in src into dest. 28 mpo_copy_pipe_label void mpo_copy_pipe_label(struct label *src, struct label *dest); Parameter Description src Source label dest Destination label Locking Copy the label information in src into dest. 29 mpo_copy_vnode_label void mpo_copy_vnode_label(struct label *src, struct label *dest); Parameter Description src Source label dest Destination label Locking Copy the label information in src into dest.

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