git: bb06a80cf60b - main - netinet[6]: make in[6]_control use ucred instead of td.
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Date: Sat, 01 Jul 2023 07:03:54 UTC
The branch main has been updated by melifaro:
URL: https://cgit.FreeBSD.org/src/commit/?id=bb06a80cf60b3afba459b72b2b2842898938fecf
commit bb06a80cf60b3afba459b72b2b2842898938fecf
Author: Alexander V. Chernikov <melifaro@FreeBSD.org>
AuthorDate: 2023-06-29 07:02:46 +0000
Commit: Alexander V. Chernikov <melifaro@FreeBSD.org>
CommitDate: 2023-07-01 06:52:24 +0000
netinet[6]: make in[6]_control use ucred instead of td.
Reviewed by: markj, zlei
Differential Revision: https://reviews.freebsd.org/D40793
MFC after: 2 weeks
---
sys/netinet/in.c | 13 +++++++++----
sys/netinet/in_var.h | 3 +++
sys/netinet6/in6.c | 29 ++++++++++++++++++-----------
sys/netinet6/in6_var.h | 2 ++
sys/netlink/route/iface.c | 8 ++++----
5 files changed, 36 insertions(+), 19 deletions(-)
diff --git a/sys/netinet/in.c b/sys/netinet/in.c
index 6a5e3cb4ee6f..fa0d311bb563 100644
--- a/sys/netinet/in.c
+++ b/sys/netinet/in.c
@@ -325,8 +325,8 @@ in_socktrim(struct sockaddr_in *ap)
* Generic internet control operations (ioctl's).
*/
int
-in_control(struct socket *so, u_long cmd, void *data, struct ifnet *ifp,
- struct thread *td)
+in_control_ioctl(u_long cmd, void *data, struct ifnet *ifp,
+ struct ucred *cred)
{
struct ifreq *ifr = (struct ifreq *)data;
struct sockaddr_in *addr = (struct sockaddr_in *)&ifr->ifr_addr;
@@ -338,8 +338,6 @@ in_control(struct socket *so, u_long cmd, void *data, struct ifnet *ifp,
if (ifp == NULL)
return (EADDRNOTAVAIL);
- struct ucred *cred = (td != NULL) ? td->td_ucred : NULL;
-
/*
* Filter out 4 ioctls we implement directly. Forward the rest
* to specific functions and ifp->if_ioctl().
@@ -441,6 +439,13 @@ in_control(struct socket *so, u_long cmd, void *data, struct ifnet *ifp,
return (error);
}
+int
+in_control(struct socket *so, u_long cmd, void *data, struct ifnet *ifp,
+ struct thread *td)
+{
+ return (in_control_ioctl(cmd, data, ifp, td ? td->td_ucred : NULL));
+}
+
static int
in_aifaddr_ioctl(u_long cmd, caddr_t data, struct ifnet *ifp, struct ucred *cred)
{
diff --git a/sys/netinet/in_var.h b/sys/netinet/in_var.h
index 40955e26bd81..ded314bcfbc0 100644
--- a/sys/netinet/in_var.h
+++ b/sys/netinet/in_var.h
@@ -437,6 +437,7 @@ inm_rele_locked(struct in_multi_head *inmh, struct in_multi *inm)
struct rib_head;
struct ip_moptions;
+struct ucred;
struct in_multi *inm_lookup_locked(struct ifnet *, const struct in_addr);
struct in_multi *inm_lookup(struct ifnet *, const struct in_addr);
@@ -458,6 +459,8 @@ int in_leavegroup_locked(struct in_multi *,
/*const*/ struct in_mfilter *);
int in_control(struct socket *, u_long, void *, struct ifnet *,
struct thread *);
+int in_control_ioctl(u_long, void *, struct ifnet *,
+ struct ucred *);
int in_addprefix(struct in_ifaddr *);
int in_scrubprefix(struct in_ifaddr *, u_int);
void in_ifscrub_all(void);
diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index 0ef640c5c4bf..24a2c20b0cca 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -249,8 +249,8 @@ struct in6_ndifreq32 {
#endif
int
-in6_control(struct socket *so, u_long cmd, void *data,
- struct ifnet *ifp, struct thread *td)
+in6_control_ioctl(u_long cmd, void *data,
+ struct ifnet *ifp, struct ucred *cred)
{
struct in6_ifreq *ifr = (struct in6_ifreq *)data;
struct in6_ifaddr *ia = NULL;
@@ -281,8 +281,8 @@ in6_control(struct socket *so, u_long cmd, void *data,
switch (cmd) {
case SIOCAADDRCTL_POLICY:
case SIOCDADDRCTL_POLICY:
- if (td != NULL) {
- error = priv_check(td, PRIV_NETINET_ADDRCTRL6);
+ if (cred != NULL) {
+ error = priv_check_cred(cred, PRIV_NETINET_ADDRCTRL6);
if (error)
return (error);
}
@@ -299,8 +299,8 @@ in6_control(struct socket *so, u_long cmd, void *data,
case SIOCSDEFIFACE_IN6:
case SIOCSIFINFO_FLAGS:
case SIOCSIFINFO_IN6:
- if (td != NULL) {
- error = priv_check(td, PRIV_NETINET_ND6);
+ if (cred != NULL) {
+ error = priv_check_cred(cred, PRIV_NETINET_ND6);
if (error)
return (error);
}
@@ -343,8 +343,8 @@ in6_control(struct socket *so, u_long cmd, void *data,
switch (cmd) {
case SIOCSSCOPE6:
- if (td != NULL) {
- error = priv_check(td, PRIV_NETINET_SCOPE6);
+ if (cred != NULL) {
+ error = priv_check_cred(cred, PRIV_NETINET_SCOPE6);
if (error)
return (error);
}
@@ -412,7 +412,7 @@ in6_control(struct socket *so, u_long cmd, void *data,
error = in6_setscope(&sa6->sin6_addr, ifp, NULL);
if (error != 0)
return (error);
- if (td != NULL && (error = prison_check_ip6(td->td_ucred,
+ if (cred != NULL && (error = prison_check_ip6(cred,
&sa6->sin6_addr)) != 0)
return (error);
sx_xlock(&in6_control_sx);
@@ -457,8 +457,8 @@ in6_control(struct socket *so, u_long cmd, void *data,
goto out;
}
- if (td != NULL) {
- error = priv_check(td, (cmd == SIOCDIFADDR_IN6) ?
+ if (cred != NULL) {
+ error = priv_check_cred(cred, (cmd == SIOCDIFADDR_IN6) ?
PRIV_NET_DELIFADDR : PRIV_NET_ADDIFADDR);
if (error)
goto out;
@@ -596,6 +596,13 @@ out:
return (error);
}
+int
+in6_control(struct socket *so, u_long cmd, void *data,
+ struct ifnet *ifp, struct thread *td)
+{
+ return (in6_control_ioctl(cmd, data, ifp, td ? td->td_ucred : NULL));
+}
+
static struct in6_multi_mship *
in6_joingroup_legacy(struct ifnet *ifp, const struct in6_addr *mcaddr,
int *errorp, int delay)
diff --git a/sys/netinet6/in6_var.h b/sys/netinet6/in6_var.h
index 63dadf6b5207..f80fd80d98fe 100644
--- a/sys/netinet6/in6_var.h
+++ b/sys/netinet6/in6_var.h
@@ -838,6 +838,7 @@ struct ip6_moptions;
struct sockopt;
struct inpcbinfo;
struct rib_head;
+struct ucred;
/* Multicast KPIs. */
int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
@@ -862,6 +863,7 @@ int ip6_setmoptions(struct inpcb *, struct sockopt *);
int in6_mask2len(struct in6_addr *, u_char *);
int in6_control(struct socket *, u_long, void *, struct ifnet *,
struct thread *);
+int in6_control_ioctl(u_long, void *, struct ifnet *, struct ucred *);
int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
struct in6_ifaddr *, int);
void in6_prepare_ifra(struct in6_aliasreq *, const struct in6_addr *,
diff --git a/sys/netlink/route/iface.c b/sys/netlink/route/iface.c
index 0874b73a5c98..c32c22af23f6 100644
--- a/sys/netlink/route/iface.c
+++ b/sys/netlink/route/iface.c
@@ -1185,7 +1185,7 @@ handle_newaddr_inet(struct nlmsghdr *hdr, struct nl_parsed_ifa *attrs,
if (dst != NULL)
req.ifra_dstaddr = *dst;
- return (in_control(NULL, SIOCAIFADDR, &req, ifp, curthread));
+ return (in_control_ioctl(SIOCAIFADDR, &req, ifp, nlp_get_cred(nlp)));
}
static int
@@ -1204,7 +1204,7 @@ handle_deladdr_inet(struct nlmsghdr *hdr, struct nl_parsed_ifa *attrs,
struct in_aliasreq req = { .ifra_addr = *addr };
- return (in_control(NULL, SIOCDIFADDR, &req, ifp, curthread));
+ return (in_control_ioctl(SIOCDIFADDR, &req, ifp, nlp_get_cred(nlp)));
}
#endif
@@ -1269,7 +1269,7 @@ handle_newaddr_inet6(struct nlmsghdr *hdr, struct nl_parsed_ifa *attrs,
if (dst != NULL)
req.ifra_dstaddr = *dst;
- return (in6_control(NULL, SIOCAIFADDR_IN6, &req, ifp, curthread));
+ return (in6_control_ioctl(SIOCAIFADDR_IN6, &req, ifp, nlp_get_cred(nlp)));
}
static int
@@ -1288,7 +1288,7 @@ handle_deladdr_inet6(struct nlmsghdr *hdr, struct nl_parsed_ifa *attrs,
struct in6_aliasreq req = { .ifra_addr = *addr };
- return (in6_control(NULL, SIOCDIFADDR_IN6, &req, ifp, curthread));
+ return (in6_control_ioctl(SIOCDIFADDR_IN6, &req, ifp, nlp_get_cred(nlp)));
}
#endif