From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by passt.top (Postfix, from userid 1000) id E1A7E5A0277; Wed, 16 Aug 2023 20:17:30 +0200 (CEST) From: Stefano Brivio To: passt-dev@passt.top Subject: [PATCH v2 5/7] selinux: Add rules for sysctl and /proc/net accesses Date: Wed, 16 Aug 2023 20:17:28 +0200 Message-Id: <20230816181730.2165306-6-sbrivio@redhat.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230816181730.2165306-1-sbrivio@redhat.com> References: <20230816181730.2165306-1-sbrivio@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID-Hash: WEO5Y7UJLEML7F3PA43K2B4YHWOHPJFN X-Message-ID-Hash: WEO5Y7UJLEML7F3PA43K2B4YHWOHPJFN X-MailFrom: sbrivio@passt.top X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: "'Richard W . M . Jones'" X-Mailman-Version: 3.3.8 Precedence: list List-Id: Development discussion and patches for passt Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: That's what we actually need to check networking-related sysctls, to scan for bound ports, and to manipulate bits of network configuration inside pasta's target namespaces. Signed-off-by: Stefano Brivio Acked-by: Richard W.M. Jones --- contrib/selinux/passt.te | 1 + contrib/selinux/pasta.te | 3 +++ 2 files changed, 4 insertions(+) diff --git a/contrib/selinux/passt.te b/contrib/selinux/passt.te index a0c0526..948d1b1 100644 --- a/contrib/selinux/passt.te +++ b/contrib/selinux/passt.te @@ -101,6 +101,7 @@ allow passt_t net_conf_t:file { open read }; allow passt_t net_conf_t:lnk_file read; allow passt_t tmp_t:sock_file { create unlink write }; allow passt_t self:netlink_route_socket { bind create nlmsg_read read write setopt }; +kernel_search_network_sysctl(passt_t) corenet_tcp_bind_all_nodes(passt_t) corenet_udp_bind_all_nodes(passt_t) diff --git a/contrib/selinux/pasta.te b/contrib/selinux/pasta.te index 28265dc..b3ddc6a 100644 --- a/contrib/selinux/pasta.te +++ b/contrib/selinux/pasta.te @@ -133,6 +133,7 @@ allow syslogd_t self:cap_userns sys_ptrace; allow pasta_t proc_net_t:file { open read }; allow pasta_t net_conf_t:file { open read }; allow pasta_t self:netlink_route_socket { bind create nlmsg_read nlmsg_write setopt read write }; +kernel_search_network_sysctl(pasta_t) allow pasta_t tmp_t:sock_file { create unlink write }; @@ -186,4 +187,6 @@ allow pasta_t sysctl_net_t:dir search; allow pasta_t sysctl_net_t:file { open write }; allow pasta_t kernel_t:system module_request; +allow pasta_t net_conf_t:lnk_file read; +allow pasta_t proc_net_t:lnk_file read; -- 2.39.2