[PATCH net-next v7 08/10] bpf: Add a Landlock sandbox example
From: Alban Crequy <hidden>
Date: 2017-09-01 10:25:51
Also in:
linux-api, lkml, netdev
From: Alban Crequy <hidden>
Date: 2017-09-01 10:25:51
Also in:
linux-api, lkml, netdev
Hi Micka?l, On 21 August 2017 at 02:09, Micka?l Sala?n [off-list ref] wrote:
Add a basic sandbox tool to create a process isolated from some part of the system. This sandbox create a read-only environment. It is only allowed to write to a character device such as a TTY:
...
+ /* + * This check allows the action on the file if it is a directory or a + * pipe. Otherwise, a message is printed to the eBPF log. + */ + if (S_ISCHR(ret) || S_ISFIFO(ret)) + return 0;
The comment says "directory", but the code checks for "character device". Thanks! Alban -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html