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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

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Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2017-10-30

1) Change some variables that can't be negative
   from int to unsigned int. From Alexey Dobriyan.

2) Remove a redundant header initialization in esp6.
   From Colin Ian King.

3) Some BUG to BUG_ON conversions.
   From Gustavo A. R. Silva.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-11-01 12:16:14 +09:00
commit 26a8ba2c8b
3 changed files with 66 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
include/net/xfrm.h
View File

@ -1764,22 +1764,22 @@ static inline int xfrm_acquire_is_on(struct net *net)
}
#endif
static inline int aead_len(struct xfrm_algo_aead *alg)
static inline unsigned int aead_len(struct xfrm_algo_aead *alg)
{
return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
}
static inline int xfrm_alg_len(const struct xfrm_algo *alg)
static inline unsigned int xfrm_alg_len(const struct xfrm_algo *alg)
{
return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
}
static inline int xfrm_alg_auth_len(const struct xfrm_algo_auth *alg)
static inline unsigned int xfrm_alg_auth_len(const struct xfrm_algo_auth *alg)
{
return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
}
static inline int xfrm_replay_state_esn_len(struct xfrm_replay_state_esn *replay_esn)
static inline unsigned int xfrm_replay_state_esn_len(struct xfrm_replay_state_esn *replay_esn)
{
return sizeof(*replay_esn) + replay_esn->bmp_len * sizeof(__u32);
}

8
net/ipv6/esp6.c
View File

@ -483,8 +483,8 @@ static inline int esp_remove_trailer(struct sk_buff *skb)
goto out;
}
if (skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2))
BUG();
ret = skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2);
BUG_ON(ret);
ret = -EINVAL;
padlen = nexthdr[0];
@ -559,14 +559,14 @@ static void esp_input_restore_header(struct sk_buff *skb)
static void esp_input_set_header(struct sk_buff *skb, __be32 *seqhi)
{
struct xfrm_state *x = xfrm_input_state(skb);
struct ip_esp_hdr *esph = (struct ip_esp_hdr *)skb->data;
/* For ESN we move the header forward by 4 bytes to
* accomodate the high bits. We will move it back after
* decryption.
*/
if ((x->props.flags & XFRM_STATE_ESN)) {
esph = skb_push(skb, 4);
struct ip_esp_hdr *esph = skb_push(skb, 4);
*seqhi = esph->spi;
esph->spi = esph->seq_no;
esph->seq_no = XFRM_SKB_CB(skb)->seq.input.hi;

105
net/xfrm/xfrm_user.c
View File

@ -42,7 +42,7 @@ static int verify_one_alg(struct nlattr **attrs, enum xfrm_attr_type_t type)
return 0;
algp = nla_data(rt);
if (nla_len(rt) < xfrm_alg_len(algp))
if (nla_len(rt) < (int)xfrm_alg_len(algp))
return -EINVAL;
switch (type) {
@ -68,7 +68,7 @@ static int verify_auth_trunc(struct nlattr **attrs)
return 0;
algp = nla_data(rt);
if (nla_len(rt) < xfrm_alg_auth_len(algp))
if (nla_len(rt) < (int)xfrm_alg_auth_len(algp))
return -EINVAL;
algp->alg_name[sizeof(algp->alg_name) - 1] = '\0';
@ -84,7 +84,7 @@ static int verify_aead(struct nlattr **attrs)
return 0;
algp = nla_data(rt);
if (nla_len(rt) < aead_len(algp))
if (nla_len(rt) < (int)aead_len(algp))
return -EINVAL;
algp->alg_name[sizeof(algp->alg_name) - 1] = '\0';
@ -130,7 +130,7 @@ static inline int verify_replay(struct xfrm_usersa_info *p,
if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8)
return -EINVAL;
if (nla_len(rt) < xfrm_replay_state_esn_len(rs) &&
if (nla_len(rt) < (int)xfrm_replay_state_esn_len(rs) &&
nla_len(rt) != sizeof(*rs))
return -EINVAL;
}
@ -404,7 +404,7 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es
struct nlattr *rp)
{
struct xfrm_replay_state_esn *up;
int ulen;
unsigned int ulen;
if (!replay_esn || !rp)
return 0;
@ -414,7 +414,7 @@ static inline int xfrm_replay_verify_len(struct xfrm_replay_state_esn *replay_es
/* Check the overall length and the internal bitmap length to avoid
* potential overflow. */
if (nla_len(rp) < ulen ||
if (nla_len(rp) < (int)ulen ||
xfrm_replay_state_esn_len(replay_esn) != ulen ||
replay_esn->bmp_len != up->bmp_len)
return -EINVAL;
@ -430,14 +430,14 @@ static int xfrm_alloc_replay_state_esn(struct xfrm_replay_state_esn **replay_esn
struct nlattr *rta)
{
struct xfrm_replay_state_esn *p, *pp, *up;
int klen, ulen;
unsigned int klen, ulen;
if (!rta)
return 0;
up = nla_data(rta);
klen = xfrm_replay_state_esn_len(up);
ulen = nla_len(rta) >= klen ? klen : sizeof(*up);
ulen = nla_len(rta) >= (int)klen ? klen : sizeof(*up);
p = kzalloc(klen, GFP_KERNEL);
if (!p)
@ -458,9 +458,9 @@ static int xfrm_alloc_replay_state_esn(struct xfrm_replay_state_esn **replay_esn
return 0;
}
static inline int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx)
static inline unsigned int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx)
{
int len = 0;
unsigned int len = 0;
if (xfrm_ctx) {
len += sizeof(struct xfrm_user_sec_ctx);
@ -1032,7 +1032,7 @@ static inline int xfrm_nlmsg_multicast(struct net *net, struct sk_buff *skb,
return -1;
}
static inline size_t xfrm_spdinfo_msgsize(void)
static inline unsigned int xfrm_spdinfo_msgsize(void)
{
return NLMSG_ALIGN(4)
+ nla_total_size(sizeof(struct xfrmu_spdinfo))
@ -1147,18 +1147,19 @@ static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
u32 *flags = nlmsg_data(nlh);
u32 sportid = NETLINK_CB(skb).portid;
u32 seq = nlh->nlmsg_seq;
int err;
r_skb = nlmsg_new(xfrm_spdinfo_msgsize(), GFP_ATOMIC);
if (r_skb == NULL)
return -ENOMEM;
if (build_spdinfo(r_skb, net, sportid, seq, *flags) < 0)
BUG();
err = build_spdinfo(r_skb, net, sportid, seq, *flags);
BUG_ON(err < 0);
return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid);
}
static inline size_t xfrm_sadinfo_msgsize(void)
static inline unsigned int xfrm_sadinfo_msgsize(void)
{
return NLMSG_ALIGN(4)
+ nla_total_size(sizeof(struct xfrmu_sadhinfo))
@ -1205,13 +1206,14 @@ static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
u32 *flags = nlmsg_data(nlh);
u32 sportid = NETLINK_CB(skb).portid;
u32 seq = nlh->nlmsg_seq;
int err;
r_skb = nlmsg_new(xfrm_sadinfo_msgsize(), GFP_ATOMIC);
if (r_skb == NULL)
return -ENOMEM;
if (build_sadinfo(r_skb, net, sportid, seq, *flags) < 0)
BUG();
err = build_sadinfo(r_skb, net, sportid, seq, *flags);
BUG_ON(err < 0);
return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid);
}
@ -1634,7 +1636,7 @@ static inline int copy_to_user_sec_ctx(struct xfrm_policy *xp, struct sk_buff *s
return copy_sec_ctx(xp->security, skb);
return 0;
}
static inline size_t userpolicy_type_attrsize(void)
static inline unsigned int userpolicy_type_attrsize(void)
{
#ifdef CONFIG_XFRM_SUB_POLICY
return nla_total_size(sizeof(struct xfrm_userpolicy_type));
@ -1853,9 +1855,9 @@ static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
return 0;
}
static inline size_t xfrm_aevent_msgsize(struct xfrm_state *x)
static inline unsigned int xfrm_aevent_msgsize(struct xfrm_state *x)
{
size_t replay_size = x->replay_esn ?
unsigned int replay_size = x->replay_esn ?
xfrm_replay_state_esn_len(x->replay_esn) :
sizeof(struct xfrm_replay_state);
@ -1960,8 +1962,9 @@ static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
c.seq = nlh->nlmsg_seq;
c.portid = nlh->nlmsg_pid;
if (build_aevent(r_skb, x, &c) < 0)
BUG();
err = build_aevent(r_skb, x, &c);
BUG_ON(err < 0);
err = nlmsg_unicast(net->xfrm.nlsk, r_skb, NETLINK_CB(skb).portid);
spin_unlock_bh(&x->lock);
xfrm_state_put(x);
@ -2324,8 +2327,8 @@ static int copy_to_user_kmaddress(const struct xfrm_kmaddress *k, struct sk_buff
return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk);
}
static inline size_t xfrm_migrate_msgsize(int num_migrate, int with_kma,
int with_encp)
static inline unsigned int xfrm_migrate_msgsize(int num_migrate, int with_kma,
int with_encp)
{
return NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id))
+ (with_kma ? nla_total_size(sizeof(struct xfrm_kmaddress)) : 0)
@ -2388,6 +2391,7 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
{
struct net *net = &init_net;
struct sk_buff *skb;
int err;
skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate, !!k, !!encap),
GFP_ATOMIC);
@ -2395,8 +2399,8 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
return -ENOMEM;
/* build migrate */
if (build_migrate(skb, m, num_migrate, k, sel, encap, dir, type) < 0)
BUG();
err = build_migrate(skb, m, num_migrate, k, sel, encap, dir, type);
BUG_ON(err < 0);
return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_MIGRATE);
}
@ -2572,7 +2576,7 @@ static void xfrm_netlink_rcv(struct sk_buff *skb)
mutex_unlock(&net->xfrm.xfrm_cfg_mutex);
}
static inline size_t xfrm_expire_msgsize(void)
static inline unsigned int xfrm_expire_msgsize(void)
{
return NLMSG_ALIGN(sizeof(struct xfrm_user_expire))
+ nla_total_size(sizeof(struct xfrm_mark));
@ -2623,13 +2627,14 @@ static int xfrm_aevent_state_notify(struct xfrm_state *x, const struct km_event
{
struct net *net = xs_net(x);
struct sk_buff *skb;
int err;
skb = nlmsg_new(xfrm_aevent_msgsize(x), GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
if (build_aevent(skb, x, c) < 0)
BUG();
err = build_aevent(skb, x, c);
BUG_ON(err < 0);
return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_AEVENTS);
}
@ -2660,9 +2665,9 @@ static int xfrm_notify_sa_flush(const struct km_event *c)
return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_SA);
}
static inline size_t xfrm_sa_len(struct xfrm_state *x)
static inline unsigned int xfrm_sa_len(struct xfrm_state *x)
{
size_t l = 0;
unsigned int l = 0;
if (x->aead)
l += nla_total_size(aead_len(x->aead));
if (x->aalg) {
@ -2707,8 +2712,9 @@ static int xfrm_notify_sa(struct xfrm_state *x, const struct km_event *c)
struct xfrm_usersa_id *id;
struct nlmsghdr *nlh;
struct sk_buff *skb;
int len = xfrm_sa_len(x);
int headlen, err;
unsigned int len = xfrm_sa_len(x);
unsigned int headlen;
int err;
headlen = sizeof(*p);
if (c->event == XFRM_MSG_DELSA) {
@ -2782,8 +2788,8 @@ static int xfrm_send_state_notify(struct xfrm_state *x, const struct km_event *c
}
static inline size_t xfrm_acquire_msgsize(struct xfrm_state *x,
struct xfrm_policy *xp)
static inline unsigned int xfrm_acquire_msgsize(struct xfrm_state *x,
struct xfrm_policy *xp)
{
return NLMSG_ALIGN(sizeof(struct xfrm_user_acquire))
+ nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr)
@ -2835,13 +2841,14 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt,
{
struct net *net = xs_net(x);
struct sk_buff *skb;
int err;
skb = nlmsg_new(xfrm_acquire_msgsize(x, xp), GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
if (build_acquire(skb, x, xt, xp) < 0)
BUG();
err = build_acquire(skb, x, xt, xp);
BUG_ON(err < 0);
return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_ACQUIRE);
}
@ -2906,7 +2913,7 @@ static struct xfrm_policy *xfrm_compile_policy(struct sock *sk, int opt,
return xp;
}
static inline size_t xfrm_polexpire_msgsize(struct xfrm_policy *xp)
static inline unsigned int xfrm_polexpire_msgsize(struct xfrm_policy *xp)
{
return NLMSG_ALIGN(sizeof(struct xfrm_user_polexpire))
+ nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr)
@ -2950,26 +2957,28 @@ static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, const struct
{
struct net *net = xp_net(xp);
struct sk_buff *skb;
int err;
skb = nlmsg_new(xfrm_polexpire_msgsize(xp), GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
if (build_polexpire(skb, xp, dir, c) < 0)
BUG();
err = build_polexpire(skb, xp, dir, c);
BUG_ON(err < 0);
return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_EXPIRE);
}
static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, const struct km_event *c)
{
int len = nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
unsigned int len = nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
struct net *net = xp_net(xp);
struct xfrm_userpolicy_info *p;
struct xfrm_userpolicy_id *id;
struct nlmsghdr *nlh;
struct sk_buff *skb;
int headlen, err;
unsigned int headlen;
int err;
headlen = sizeof(*p);
if (c->event == XFRM_MSG_DELPOLICY) {
@ -3076,7 +3085,7 @@ static int xfrm_send_policy_notify(struct xfrm_policy *xp, int dir, const struct
}
static inline size_t xfrm_report_msgsize(void)
static inline unsigned int xfrm_report_msgsize(void)
{
return NLMSG_ALIGN(sizeof(struct xfrm_user_report));
}
@ -3110,18 +3119,19 @@ static int xfrm_send_report(struct net *net, u8 proto,
struct xfrm_selector *sel, xfrm_address_t *addr)
{
struct sk_buff *skb;
int err;
skb = nlmsg_new(xfrm_report_msgsize(), GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
if (build_report(skb, proto, sel, addr) < 0)
BUG();
err = build_report(skb, proto, sel, addr);
BUG_ON(err < 0);
return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_REPORT);
}
static inline size_t xfrm_mapping_msgsize(void)
static inline unsigned int xfrm_mapping_msgsize(void)
{
return NLMSG_ALIGN(sizeof(struct xfrm_user_mapping));
}
@ -3157,6 +3167,7 @@ static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr,
{
struct net *net = xs_net(x);
struct sk_buff *skb;
int err;
if (x->id.proto != IPPROTO_ESP)
return -EINVAL;
@ -3168,8 +3179,8 @@ static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr,
if (skb == NULL)
return -ENOMEM;
if (build_mapping(skb, x, ipaddr, sport) < 0)
BUG();
err = build_mapping(skb, x, ipaddr, sport);
BUG_ON(err < 0);
return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_MAPPING);
}