5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paolo Abeni <pabeni@xxxxxxxxxx>
commit 90d930882139f166ed2551205d6f6d8c50b656fb upstream.
A few pm-related helpers don't touch arguments which lacking
the const modifier, let's constify them.
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Mat Martineau <mathew.j.martineau@xxxxxxxxxxxxxxx>
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Stable-dep-of: 48e50dcbcbaa ("mptcp: pm: avoid possible UaF when selecting endp")
[ Conflicts because a few modified helpers from the original patch are
not present in this version. We don't need to do anything with them. ]
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mptcp/pm.c | 4 ++--
net/mptcp/pm_netlink.c | 36 ++++++++++++++++++------------------
net/mptcp/protocol.h | 18 +++++++++---------
3 files changed, 29 insertions(+), 29 deletions(-)
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -202,7 +202,7 @@ void mptcp_pm_add_addr_received(struct m
}
void mptcp_pm_add_addr_echoed(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr)
+ const struct mptcp_addr_info *addr)
{
struct mptcp_pm_data *pm = &msk->pm;
@@ -260,7 +260,7 @@ void mptcp_pm_mp_fail_received(struct so
/* path manager helpers */
-bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, struct sk_buff *skb,
+bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, const struct sk_buff *skb,
unsigned int opt_size, unsigned int remaining,
struct mptcp_addr_info *addr, bool *echo,
bool *port, bool *drop_other_suboptions)
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -60,7 +60,7 @@ struct pm_nl_pernet {
#define ADD_ADDR_RETRANS_MAX 3
static bool addresses_equal(const struct mptcp_addr_info *a,
- struct mptcp_addr_info *b, bool use_port)
+ const struct mptcp_addr_info *b, bool use_port)
{
bool addr_equals = false;
@@ -123,7 +123,7 @@ static void remote_address(const struct
}
static bool lookup_subflow_by_saddr(const struct list_head *list,
- struct mptcp_addr_info *saddr)
+ const struct mptcp_addr_info *saddr)
{
struct mptcp_subflow_context *subflow;
struct mptcp_addr_info cur;
@@ -141,7 +141,7 @@ static bool lookup_subflow_by_saddr(cons
}
static bool lookup_subflow_by_daddr(const struct list_head *list,
- struct mptcp_addr_info *daddr)
+ const struct mptcp_addr_info *daddr)
{
struct mptcp_subflow_context *subflow;
struct mptcp_addr_info cur;
@@ -162,8 +162,8 @@ static struct mptcp_pm_addr_entry *
select_local_address(const struct pm_nl_pernet *pernet,
struct mptcp_sock *msk)
{
+ const struct sock *sk = (const struct sock *)msk;
struct mptcp_pm_addr_entry *entry, *ret = NULL;
- struct sock *sk = (struct sock *)msk;
msk_owned_by_me(msk);
@@ -219,16 +219,16 @@ select_signal_address(struct pm_nl_perne
return ret;
}
-unsigned int mptcp_pm_get_add_addr_signal_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_add_addr_signal_max(const struct mptcp_sock *msk)
{
- struct pm_nl_pernet *pernet;
+ const struct pm_nl_pernet *pernet;
- pernet = net_generic(sock_net((struct sock *)msk), pm_nl_pernet_id);
+ pernet = net_generic(sock_net((const struct sock *)msk), pm_nl_pernet_id);
return READ_ONCE(pernet->add_addr_signal_max);
}
EXPORT_SYMBOL_GPL(mptcp_pm_get_add_addr_signal_max);
-unsigned int mptcp_pm_get_add_addr_accept_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_add_addr_accept_max(const struct mptcp_sock *msk)
{
struct pm_nl_pernet *pernet;
@@ -237,7 +237,7 @@ unsigned int mptcp_pm_get_add_addr_accep
}
EXPORT_SYMBOL_GPL(mptcp_pm_get_add_addr_accept_max);
-unsigned int mptcp_pm_get_subflows_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_subflows_max(const struct mptcp_sock *msk)
{
struct pm_nl_pernet *pernet;
@@ -246,7 +246,7 @@ unsigned int mptcp_pm_get_subflows_max(s
}
EXPORT_SYMBOL_GPL(mptcp_pm_get_subflows_max);
-unsigned int mptcp_pm_get_local_addr_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_local_addr_max(const struct mptcp_sock *msk)
{
struct pm_nl_pernet *pernet;
@@ -264,8 +264,8 @@ static void check_work_pending(struct mp
}
struct mptcp_pm_add_entry *
-mptcp_lookup_anno_list_by_saddr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr)
+mptcp_lookup_anno_list_by_saddr(const struct mptcp_sock *msk,
+ const struct mptcp_addr_info *addr)
{
struct mptcp_pm_add_entry *entry;
@@ -346,7 +346,7 @@ out:
struct mptcp_pm_add_entry *
mptcp_pm_del_add_timer(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr, bool check_id)
+ const struct mptcp_addr_info *addr, bool check_id)
{
struct mptcp_pm_add_entry *entry;
struct sock *sk = (struct sock *)msk;
@@ -364,7 +364,7 @@ mptcp_pm_del_add_timer(struct mptcp_sock
}
static bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk,
- struct mptcp_pm_addr_entry *entry)
+ const struct mptcp_pm_addr_entry *entry)
{
struct mptcp_pm_add_entry *add_entry = NULL;
struct sock *sk = (struct sock *)msk;
@@ -410,8 +410,8 @@ void mptcp_pm_free_anno_list(struct mptc
}
}
-static bool lookup_address_in_vec(struct mptcp_addr_info *addrs, unsigned int nr,
- struct mptcp_addr_info *addr)
+static bool lookup_address_in_vec(const struct mptcp_addr_info *addrs, unsigned int nr,
+ const struct mptcp_addr_info *addr)
{
int i;
@@ -1329,7 +1329,7 @@ int mptcp_pm_get_flags_and_ifindex_by_id
}
static bool remove_anno_list_by_saddr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr)
+ const struct mptcp_addr_info *addr)
{
struct mptcp_pm_add_entry *entry;
@@ -1344,7 +1344,7 @@ static bool remove_anno_list_by_saddr(st
}
static bool mptcp_pm_remove_anno_addr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr,
+ const struct mptcp_addr_info *addr,
bool force)
{
struct mptcp_rm_list list = { .nr = 0 };
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -738,7 +738,7 @@ void mptcp_pm_subflow_closed(struct mptc
void mptcp_pm_add_addr_received(struct mptcp_sock *msk,
const struct mptcp_addr_info *addr);
void mptcp_pm_add_addr_echoed(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr);
+ const struct mptcp_addr_info *addr);
void mptcp_pm_add_addr_send_ack(struct mptcp_sock *msk);
void mptcp_pm_nl_addr_send_ack(struct mptcp_sock *msk);
void mptcp_pm_rm_addr_received(struct mptcp_sock *msk,
@@ -752,10 +752,10 @@ void mptcp_pm_free_anno_list(struct mptc
bool mptcp_pm_sport_in_anno_list(struct mptcp_sock *msk, const struct sock *sk);
struct mptcp_pm_add_entry *
mptcp_pm_del_add_timer(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr, bool check_id);
+ const struct mptcp_addr_info *addr, bool check_id);
struct mptcp_pm_add_entry *
-mptcp_lookup_anno_list_by_saddr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr);
+mptcp_lookup_anno_list_by_saddr(const struct mptcp_sock *msk,
+ const struct mptcp_addr_info *addr);
int mptcp_pm_get_flags_and_ifindex_by_id(struct net *net, unsigned int id,
u8 *flags, int *ifindex);
@@ -814,7 +814,7 @@ static inline int mptcp_rm_addr_len(cons
return TCPOLEN_MPTCP_RM_ADDR_BASE + roundup(rm_list->nr - 1, 4) + 1;
}
-bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, struct sk_buff *skb,
+bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, const struct sk_buff *skb,
unsigned int opt_size, unsigned int remaining,
struct mptcp_addr_info *addr, bool *echo,
bool *port, bool *drop_other_suboptions);
@@ -830,10 +830,10 @@ void mptcp_pm_nl_rm_subflow_received(str
const struct mptcp_rm_list *rm_list);
int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct sock_common *skc);
bool mptcp_pm_nl_is_backup(struct mptcp_sock *msk, struct mptcp_addr_info *skc);
-unsigned int mptcp_pm_get_add_addr_signal_max(struct mptcp_sock *msk);
-unsigned int mptcp_pm_get_add_addr_accept_max(struct mptcp_sock *msk);
-unsigned int mptcp_pm_get_subflows_max(struct mptcp_sock *msk);
-unsigned int mptcp_pm_get_local_addr_max(struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_add_addr_signal_max(const struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_add_addr_accept_max(const struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_subflows_max(const struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_local_addr_max(const struct mptcp_sock *msk);
void mptcp_sockopt_sync(struct mptcp_sock *msk, struct sock *ssk);
void mptcp_sockopt_sync_all(struct mptcp_sock *msk);
