From 15e473046cb6e5d18a4d0057e61d76315230382b Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 7 Sep 2012 20:12:54 +0000 Subject: netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/xfrm/xfrm_state.c | 10 ++++----- net/xfrm/xfrm_user.c | 62 +++++++++++++++++++++++++-------------------------- 2 files changed, 36 insertions(+), 36 deletions(-) (limited to 'net/xfrm') diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 7856c33898fa..30edad44e7fc 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -166,7 +166,7 @@ static DEFINE_SPINLOCK(xfrm_state_gc_lock); int __xfrm_state_delete(struct xfrm_state *x); int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol); -void km_state_expired(struct xfrm_state *x, int hard, u32 pid); +void km_state_expired(struct xfrm_state *x, int hard, u32 portid); static struct xfrm_state_afinfo *xfrm_state_lock_afinfo(unsigned int family) { @@ -1674,13 +1674,13 @@ void km_state_notify(struct xfrm_state *x, const struct km_event *c) EXPORT_SYMBOL(km_policy_notify); EXPORT_SYMBOL(km_state_notify); -void km_state_expired(struct xfrm_state *x, int hard, u32 pid) +void km_state_expired(struct xfrm_state *x, int hard, u32 portid) { struct net *net = xs_net(x); struct km_event c; c.data.hard = hard; - c.pid = pid; + c.portid = portid; c.event = XFRM_MSG_EXPIRE; km_state_notify(x, &c); @@ -1726,13 +1726,13 @@ int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport) } EXPORT_SYMBOL(km_new_mapping); -void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pid) +void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 portid) { struct net *net = xp_net(pol); struct km_event c; c.data.hard = hard; - c.pid = pid; + c.portid = portid; c.event = XFRM_MSG_POLEXPIRE; km_policy_notify(pol, dir, &c); diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 354070adb5ef..b313d932d678 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -603,7 +603,7 @@ static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh, } c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; c.event = nlh->nlmsg_type; km_state_notify(x, &c); @@ -676,7 +676,7 @@ static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, goto out; c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; c.event = nlh->nlmsg_type; km_state_notify(x, &c); @@ -826,7 +826,7 @@ static int dump_one_state(struct xfrm_state *x, int count, void *ptr) struct nlmsghdr *nlh; int err; - nlh = nlmsg_put(skb, NETLINK_CB(in_skb).pid, sp->nlmsg_seq, + nlh = nlmsg_put(skb, NETLINK_CB(in_skb).portid, sp->nlmsg_seq, XFRM_MSG_NEWSA, sizeof(*p), sp->nlmsg_flags); if (nlh == NULL) return -EMSGSIZE; @@ -904,7 +904,7 @@ static inline size_t xfrm_spdinfo_msgsize(void) } static int build_spdinfo(struct sk_buff *skb, struct net *net, - u32 pid, u32 seq, u32 flags) + u32 portid, u32 seq, u32 flags) { struct xfrmk_spdinfo si; struct xfrmu_spdinfo spc; @@ -913,7 +913,7 @@ static int build_spdinfo(struct sk_buff *skb, struct net *net, int err; u32 *f; - nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSPDINFO, sizeof(u32), 0); + nlh = nlmsg_put(skb, portid, seq, XFRM_MSG_NEWSPDINFO, sizeof(u32), 0); if (nlh == NULL) /* shouldn't really happen ... */ return -EMSGSIZE; @@ -946,17 +946,17 @@ static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh, struct net *net = sock_net(skb->sk); struct sk_buff *r_skb; u32 *flags = nlmsg_data(nlh); - u32 spid = NETLINK_CB(skb).pid; + u32 sportid = NETLINK_CB(skb).portid; u32 seq = nlh->nlmsg_seq; r_skb = nlmsg_new(xfrm_spdinfo_msgsize(), GFP_ATOMIC); if (r_skb == NULL) return -ENOMEM; - if (build_spdinfo(r_skb, net, spid, seq, *flags) < 0) + if (build_spdinfo(r_skb, net, sportid, seq, *flags) < 0) BUG(); - return nlmsg_unicast(net->xfrm.nlsk, r_skb, spid); + return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid); } static inline size_t xfrm_sadinfo_msgsize(void) @@ -967,7 +967,7 @@ static inline size_t xfrm_sadinfo_msgsize(void) } static int build_sadinfo(struct sk_buff *skb, struct net *net, - u32 pid, u32 seq, u32 flags) + u32 portid, u32 seq, u32 flags) { struct xfrmk_sadinfo si; struct xfrmu_sadhinfo sh; @@ -975,7 +975,7 @@ static int build_sadinfo(struct sk_buff *skb, struct net *net, int err; u32 *f; - nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSADINFO, sizeof(u32), 0); + nlh = nlmsg_put(skb, portid, seq, XFRM_MSG_NEWSADINFO, sizeof(u32), 0); if (nlh == NULL) /* shouldn't really happen ... */ return -EMSGSIZE; @@ -1003,17 +1003,17 @@ static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh, struct net *net = sock_net(skb->sk); struct sk_buff *r_skb; u32 *flags = nlmsg_data(nlh); - u32 spid = NETLINK_CB(skb).pid; + u32 sportid = NETLINK_CB(skb).portid; u32 seq = nlh->nlmsg_seq; r_skb = nlmsg_new(xfrm_sadinfo_msgsize(), GFP_ATOMIC); if (r_skb == NULL) return -ENOMEM; - if (build_sadinfo(r_skb, net, spid, seq, *flags) < 0) + if (build_sadinfo(r_skb, net, sportid, seq, *flags) < 0) BUG(); - return nlmsg_unicast(net->xfrm.nlsk, r_skb, spid); + return nlmsg_unicast(net->xfrm.nlsk, r_skb, sportid); } static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh, @@ -1033,7 +1033,7 @@ static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh, if (IS_ERR(resp_skb)) { err = PTR_ERR(resp_skb); } else { - err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, NETLINK_CB(skb).pid); + err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, NETLINK_CB(skb).portid); } xfrm_state_put(x); out_noput: @@ -1114,7 +1114,7 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh, goto out; } - err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, NETLINK_CB(skb).pid); + err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, NETLINK_CB(skb).portid); out: xfrm_state_put(x); @@ -1401,7 +1401,7 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, c.event = nlh->nlmsg_type; c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; km_policy_notify(xp, p->dir, &c); xfrm_pol_put(xp); @@ -1486,7 +1486,7 @@ static int dump_one_policy(struct xfrm_policy *xp, int dir, int count, void *ptr struct nlmsghdr *nlh; int err; - nlh = nlmsg_put(skb, NETLINK_CB(in_skb).pid, sp->nlmsg_seq, + nlh = nlmsg_put(skb, NETLINK_CB(in_skb).portid, sp->nlmsg_seq, XFRM_MSG_NEWPOLICY, sizeof(*p), sp->nlmsg_flags); if (nlh == NULL) return -EMSGSIZE; @@ -1621,7 +1621,7 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, err = PTR_ERR(resp_skb); } else { err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, - NETLINK_CB(skb).pid); + NETLINK_CB(skb).portid); } } else { uid_t loginuid = audit_get_loginuid(current); @@ -1638,7 +1638,7 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, c.data.byid = p->index; c.event = nlh->nlmsg_type; c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; km_policy_notify(xp, p->dir, &c); } @@ -1668,7 +1668,7 @@ static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh, c.data.proto = p->proto; c.event = nlh->nlmsg_type; c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; c.net = net; km_state_notify(NULL, &c); @@ -1695,7 +1695,7 @@ static int build_aevent(struct sk_buff *skb, struct xfrm_state *x, const struct struct nlmsghdr *nlh; int err; - nlh = nlmsg_put(skb, c->pid, c->seq, XFRM_MSG_NEWAE, sizeof(*id), 0); + nlh = nlmsg_put(skb, c->portid, c->seq, XFRM_MSG_NEWAE, sizeof(*id), 0); if (nlh == NULL) return -EMSGSIZE; @@ -1777,11 +1777,11 @@ static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh, spin_lock_bh(&x->lock); c.data.aevent = p->flags; c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; if (build_aevent(r_skb, x, &c) < 0) BUG(); - err = nlmsg_unicast(net->xfrm.nlsk, r_skb, NETLINK_CB(skb).pid); + err = nlmsg_unicast(net->xfrm.nlsk, r_skb, NETLINK_CB(skb).portid); spin_unlock_bh(&x->lock); xfrm_state_put(x); return err; @@ -1827,7 +1827,7 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh, c.event = nlh->nlmsg_type; c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; c.data.aevent = XFRM_AE_CU; km_state_notify(x, &c); err = 0; @@ -1862,7 +1862,7 @@ static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh, c.data.type = type; c.event = nlh->nlmsg_type; c.seq = nlh->nlmsg_seq; - c.pid = nlh->nlmsg_pid; + c.portid = nlh->nlmsg_pid; c.net = net; km_policy_notify(NULL, 0, &c); return 0; @@ -2370,7 +2370,7 @@ static int build_expire(struct sk_buff *skb, struct xfrm_state *x, const struct struct nlmsghdr *nlh; int err; - nlh = nlmsg_put(skb, c->pid, 0, XFRM_MSG_EXPIRE, sizeof(*ue), 0); + nlh = nlmsg_put(skb, c->portid, 0, XFRM_MSG_EXPIRE, sizeof(*ue), 0); if (nlh == NULL) return -EMSGSIZE; @@ -2429,7 +2429,7 @@ static int xfrm_notify_sa_flush(const struct km_event *c) if (skb == NULL) return -ENOMEM; - nlh = nlmsg_put(skb, c->pid, c->seq, XFRM_MSG_FLUSHSA, sizeof(*p), 0); + nlh = nlmsg_put(skb, c->portid, c->seq, XFRM_MSG_FLUSHSA, sizeof(*p), 0); if (nlh == NULL) { kfree_skb(skb); return -EMSGSIZE; @@ -2497,7 +2497,7 @@ static int xfrm_notify_sa(struct xfrm_state *x, const struct km_event *c) if (skb == NULL) return -ENOMEM; - nlh = nlmsg_put(skb, c->pid, c->seq, c->event, headlen, 0); + nlh = nlmsg_put(skb, c->portid, c->seq, c->event, headlen, 0); err = -EMSGSIZE; if (nlh == NULL) goto out_free_skb; @@ -2696,7 +2696,7 @@ static int build_polexpire(struct sk_buff *skb, struct xfrm_policy *xp, struct nlmsghdr *nlh; int err; - nlh = nlmsg_put(skb, c->pid, 0, XFRM_MSG_POLEXPIRE, sizeof(*upe), 0); + nlh = nlmsg_put(skb, c->portid, 0, XFRM_MSG_POLEXPIRE, sizeof(*upe), 0); if (nlh == NULL) return -EMSGSIZE; @@ -2756,7 +2756,7 @@ static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, const struct km_e if (skb == NULL) return -ENOMEM; - nlh = nlmsg_put(skb, c->pid, c->seq, c->event, headlen, 0); + nlh = nlmsg_put(skb, c->portid, c->seq, c->event, headlen, 0); err = -EMSGSIZE; if (nlh == NULL) goto out_free_skb; @@ -2810,7 +2810,7 @@ static int xfrm_notify_policy_flush(const struct km_event *c) if (skb == NULL) return -ENOMEM; - nlh = nlmsg_put(skb, c->pid, c->seq, XFRM_MSG_FLUSHPOLICY, 0, 0); + nlh = nlmsg_put(skb, c->portid, c->seq, XFRM_MSG_FLUSHPOLICY, 0, 0); err = -EMSGSIZE; if (nlh == NULL) goto out_free_skb; -- cgit v1.2.3