diff options
author | Daniel Borkmann <daniel@iogearbox.net> | 2020-04-28 22:20:20 +0300 |
---|---|---|
committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-04-28 22:23:38 +0300 |
commit | 0b54142e4b09fbf719eb9fc6fe8bcacbd0547ac3 (patch) | |
tree | e65147d1aec55854e854a9a00ec9ac17af193208 /net | |
parent | 8c1b2bf16d5944cd5c3a8a72e24ed9e22360c1af (diff) | |
parent | 32927393dc1ccd60fb2bdc05b9e8e88753761469 (diff) | |
download | linux-0b54142e4b09fbf719eb9fc6fe8bcacbd0547ac3.tar.xz |
Merge branch 'work.sysctl' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull in Christoph Hellwig's series that changes the sysctl's ->proc_handler
methods to take kernel pointers instead. It gets rid of the set_fs address
space overrides used by BPF. As per discussion, pull in the feature branch
into bpf-next as it relates to BPF sysctl progs.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200427071508.GV23230@ZenIV.linux.org.uk/T/
Diffstat (limited to 'net')
-rw-r--r-- | net/bridge/br_netfilter_hooks.c | 2 | ||||
-rw-r--r-- | net/core/neighbour.c | 28 | ||||
-rw-r--r-- | net/core/sysctl_net_core.c | 27 | ||||
-rw-r--r-- | net/decnet/dn_dev.c | 7 | ||||
-rw-r--r-- | net/decnet/sysctl_net_decnet.c | 27 | ||||
-rw-r--r-- | net/ipv4/devinet.c | 9 | ||||
-rw-r--r-- | net/ipv4/route.c | 3 | ||||
-rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 38 | ||||
-rw-r--r-- | net/ipv6/addrconf.c | 33 | ||||
-rw-r--r-- | net/ipv6/ndisc.c | 3 | ||||
-rw-r--r-- | net/ipv6/route.c | 5 | ||||
-rw-r--r-- | net/ipv6/sysctl_net_ipv6.c | 3 | ||||
-rw-r--r-- | net/mpls/af_mpls.c | 5 | ||||
-rw-r--r-- | net/netfilter/ipvs/ip_vs_ctl.c | 6 | ||||
-rw-r--r-- | net/netfilter/nf_conntrack_standalone.c | 2 | ||||
-rw-r--r-- | net/netfilter/nf_log.c | 2 | ||||
-rw-r--r-- | net/phonet/sysctl.c | 3 | ||||
-rw-r--r-- | net/rds/tcp.c | 6 | ||||
-rw-r--r-- | net/sctp/sysctl.c | 32 | ||||
-rw-r--r-- | net/sunrpc/sysctl.c | 29 | ||||
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma.c | 7 |
21 files changed, 109 insertions, 168 deletions
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index 59980ecfc962..04c3f9a82650 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -1027,7 +1027,7 @@ int br_nf_hook_thresh(unsigned int hook, struct net *net, #ifdef CONFIG_SYSCTL static int brnf_sysctl_call_tables(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret; diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 39d37d0ef575..3f2263e79e4b 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -3379,7 +3379,7 @@ EXPORT_SYMBOL(neigh_app_ns); static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN); static int proc_unres_qlen(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int size, ret; struct ctl_table tmp = *ctl; @@ -3443,8 +3443,8 @@ static void neigh_proc_update(struct ctl_table *ctl, int write) } static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, + loff_t *ppos) { struct ctl_table tmp = *ctl; int ret; @@ -3457,8 +3457,8 @@ static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write, return ret; } -int neigh_proc_dointvec(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +int neigh_proc_dointvec(struct ctl_table *ctl, int write, void *buffer, + size_t *lenp, loff_t *ppos) { int ret = proc_dointvec(ctl, write, buffer, lenp, ppos); @@ -3467,8 +3467,7 @@ int neigh_proc_dointvec(struct ctl_table *ctl, int write, } EXPORT_SYMBOL(neigh_proc_dointvec); -int neigh_proc_dointvec_jiffies(struct ctl_table *ctl, int write, - void __user *buffer, +int neigh_proc_dointvec_jiffies(struct ctl_table *ctl, int write, void *buffer, size_t *lenp, loff_t *ppos) { int ret = proc_dointvec_jiffies(ctl, write, buffer, lenp, ppos); @@ -3479,8 +3478,8 @@ int neigh_proc_dointvec_jiffies(struct ctl_table *ctl, int write, EXPORT_SYMBOL(neigh_proc_dointvec_jiffies); static int neigh_proc_dointvec_userhz_jiffies(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, + loff_t *ppos) { int ret = proc_dointvec_userhz_jiffies(ctl, write, buffer, lenp, ppos); @@ -3489,8 +3488,7 @@ static int neigh_proc_dointvec_userhz_jiffies(struct ctl_table *ctl, int write, } int neigh_proc_dointvec_ms_jiffies(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret = proc_dointvec_ms_jiffies(ctl, write, buffer, lenp, ppos); @@ -3500,8 +3498,8 @@ int neigh_proc_dointvec_ms_jiffies(struct ctl_table *ctl, int write, EXPORT_SYMBOL(neigh_proc_dointvec_ms_jiffies); static int neigh_proc_dointvec_unres_qlen(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, + loff_t *ppos) { int ret = proc_unres_qlen(ctl, write, buffer, lenp, ppos); @@ -3510,8 +3508,8 @@ static int neigh_proc_dointvec_unres_qlen(struct ctl_table *ctl, int write, } static int neigh_proc_base_reachable_time(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, + loff_t *ppos) { struct neigh_parms *p = ctl->extra2; int ret; diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 9f9e00ba3ad7..0ddb13a6282b 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -45,7 +45,7 @@ EXPORT_SYMBOL(sysctl_devconf_inherit_init_net); #ifdef CONFIG_RPS static int rps_sock_flow_sysctl(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { unsigned int orig_size, size; int ret, i; @@ -115,8 +115,7 @@ static int rps_sock_flow_sysctl(struct ctl_table *table, int write, static DEFINE_MUTEX(flow_limit_update_mutex); static int flow_limit_cpu_sysctl(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct sd_flow_limit *cur; struct softnet_data *sd; @@ -180,10 +179,7 @@ write_unlock: } if (len < *lenp) kbuf[len++] = '\n'; - if (copy_to_user(buffer, kbuf, len)) { - ret = -EFAULT; - goto done; - } + memcpy(buffer, kbuf, len); *lenp = len; *ppos += len; } @@ -194,8 +190,7 @@ done: } static int flow_limit_table_len_sysctl(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { unsigned int old, *ptr; int ret; @@ -217,7 +212,7 @@ static int flow_limit_table_len_sysctl(struct ctl_table *table, int write, #ifdef CONFIG_NET_SCHED static int set_default_qdisc(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { char id[IFNAMSIZ]; struct ctl_table tbl = { @@ -236,7 +231,7 @@ static int set_default_qdisc(struct ctl_table *table, int write, #endif static int proc_do_dev_weight(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret; @@ -251,7 +246,7 @@ static int proc_do_dev_weight(struct ctl_table *table, int write, } static int proc_do_rss_key(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct ctl_table fake_table; char buf[NETDEV_RSS_KEY_LEN * 3]; @@ -264,7 +259,7 @@ static int proc_do_rss_key(struct ctl_table *table, int write, #ifdef CONFIG_BPF_JIT static int proc_dointvec_minmax_bpf_enable(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, + void *buffer, size_t *lenp, loff_t *ppos) { int ret, jit_enable = *(int *)table->data; @@ -291,8 +286,7 @@ static int proc_dointvec_minmax_bpf_enable(struct ctl_table *table, int write, # ifdef CONFIG_HAVE_EBPF_JIT static int proc_dointvec_minmax_bpf_restricted(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { if (!capable(CAP_SYS_ADMIN)) return -EPERM; @@ -303,8 +297,7 @@ proc_dointvec_minmax_bpf_restricted(struct ctl_table *table, int write, static int proc_dolongvec_minmax_bpf_restricted(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { if (!capable(CAP_SYS_ADMIN)) return -EPERM; diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c index cca7ae712995..65abcf1b3210 100644 --- a/net/decnet/dn_dev.c +++ b/net/decnet/dn_dev.c @@ -160,8 +160,8 @@ static int max_t3[] = { 8191 }; /* Must fit in 16 bits when multiplied by BCT3MU static int min_priority[1]; static int max_priority[] = { 127 }; /* From DECnet spec */ -static int dn_forwarding_proc(struct ctl_table *, int, - void __user *, size_t *, loff_t *); +static int dn_forwarding_proc(struct ctl_table *, int, void *, size_t *, + loff_t *); static struct dn_dev_sysctl_table { struct ctl_table_header *sysctl_header; struct ctl_table dn_dev_vars[5]; @@ -245,8 +245,7 @@ static void dn_dev_sysctl_unregister(struct dn_dev_parms *parms) } static int dn_forwarding_proc(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { #ifdef CONFIG_DECNET_ROUTER struct net_device *dev = table->extra1; diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c index 55bf64a22b59..deae519bdeec 100644 --- a/net/decnet/sysctl_net_decnet.c +++ b/net/decnet/sysctl_net_decnet.c @@ -134,8 +134,7 @@ static int parse_addr(__le16 *addr, char *str) } static int dn_node_address_handler(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { char addr[DN_ASCBUF_LEN]; size_t len; @@ -148,10 +147,7 @@ static int dn_node_address_handler(struct ctl_table *table, int write, if (write) { len = (*lenp < DN_ASCBUF_LEN) ? *lenp : (DN_ASCBUF_LEN-1); - - if (copy_from_user(addr, buffer, len)) - return -EFAULT; - + memcpy(addr, buffer, len); addr[len] = 0; strip_it(addr); @@ -173,11 +169,9 @@ static int dn_node_address_handler(struct ctl_table *table, int write, len = strlen(addr); addr[len++] = '\n'; - if (len > *lenp) len = *lenp; - - if (copy_to_user(buffer, addr, len)) - return -EFAULT; - + if (len > *lenp) + len = *lenp; + memcpy(buffer, addr, len); *lenp = len; *ppos += len; @@ -185,8 +179,7 @@ static int dn_node_address_handler(struct ctl_table *table, int write, } static int dn_def_dev_handler(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { size_t len; struct net_device *dev; @@ -201,9 +194,7 @@ static int dn_def_dev_handler(struct ctl_table *table, int write, if (*lenp > 16) return -E2BIG; - if (copy_from_user(devname, buffer, *lenp)) - return -EFAULT; - + memcpy(devname, buffer, *lenp); devname[*lenp] = 0; strip_it(devname); @@ -238,9 +229,7 @@ static int dn_def_dev_handler(struct ctl_table *table, int write, if (len > *lenp) len = *lenp; - if (copy_to_user(buffer, devname, len)) - return -EFAULT; - + memcpy(buffer, devname, len); *lenp = len; *ppos += len; diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index c0dd561aa190..fc94f82f82c7 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -2366,8 +2366,7 @@ static int devinet_conf_ifindex(struct net *net, struct ipv4_devconf *cnf) } static int devinet_conf_proc(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int old_value = *(int *)ctl->data; int ret = proc_dointvec(ctl, write, buffer, lenp, ppos); @@ -2419,8 +2418,7 @@ static int devinet_conf_proc(struct ctl_table *ctl, int write, } static int devinet_sysctl_forward(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int val = *valp; @@ -2463,8 +2461,7 @@ static int devinet_sysctl_forward(struct ctl_table *ctl, int write, } static int ipv4_doint_and_flush(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int val = *valp; diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 788c69d9bfe0..041f4dcac440 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -3336,8 +3336,7 @@ static int ip_rt_gc_elasticity __read_mostly = 8; static int ip_min_valid_pmtu __read_mostly = IPV4_MIN_MTU; static int ipv4_sysctl_rtcache_flush(struct ctl_table *__ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = (struct net *)__ctl->extra1; diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 81b267e990a1..868e317cc324 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -71,8 +71,7 @@ static void set_local_port_range(struct net *net, int range[2]) /* Validate changes from /proc interface. */ static int ipv4_local_port_range(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = container_of(table->data, struct net, ipv4.ip_local_ports.range); @@ -107,7 +106,7 @@ static int ipv4_local_port_range(struct ctl_table *table, int write, /* Validate changes from /proc interface. */ static int ipv4_privileged_ports(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = container_of(table->data, struct net, ipv4.sysctl_ip_prot_sock); @@ -168,8 +167,7 @@ static void set_ping_group_range(struct ctl_table *table, kgid_t low, kgid_t hig /* Validate changes from /proc interface. */ static int ipv4_ping_group_range(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct user_namespace *user_ns = current_user_ns(); int ret; @@ -204,8 +202,7 @@ static int ipv4_ping_group_range(struct ctl_table *table, int write, } static int ipv4_fwd_update_priority(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net; int ret; @@ -221,7 +218,7 @@ static int ipv4_fwd_update_priority(struct ctl_table *table, int write, } static int proc_tcp_congestion_control(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = container_of(ctl->data, struct net, ipv4.tcp_congestion_control); @@ -241,9 +238,8 @@ static int proc_tcp_congestion_control(struct ctl_table *ctl, int write, } static int proc_tcp_available_congestion_control(struct ctl_table *ctl, - int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + int write, void *buffer, + size_t *lenp, loff_t *ppos) { struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, }; int ret; @@ -258,9 +254,8 @@ static int proc_tcp_available_congestion_control(struct ctl_table *ctl, } static int proc_allowed_congestion_control(struct ctl_table *ctl, - int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + int write, void *buffer, + size_t *lenp, loff_t *ppos) { struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX }; int ret; @@ -296,8 +291,7 @@ static int sscanf_key(char *buf, __le32 *key) } static int proc_tcp_fastopen_key(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = container_of(table->data, struct net, ipv4.sysctl_tcp_fastopen); @@ -399,7 +393,7 @@ static void proc_configure_early_demux(int enabled, int protocol) } static int proc_tcp_early_demux(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret = 0; @@ -415,7 +409,7 @@ static int proc_tcp_early_demux(struct ctl_table *table, int write, } static int proc_udp_early_demux(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret = 0; @@ -431,8 +425,7 @@ static int proc_udp_early_demux(struct ctl_table *table, int write, } static int proc_tfo_blackhole_detect_timeout(struct ctl_table *table, - int write, - void __user *buffer, + int write, void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = container_of(table->data, struct net, @@ -447,8 +440,7 @@ static int proc_tfo_blackhole_detect_timeout(struct ctl_table *table, } static int proc_tcp_available_ulp(struct ctl_table *ctl, - int write, - void __user *buffer, size_t *lenp, + int write, void *buffer, size_t *lenp, loff_t *ppos) { struct ctl_table tbl = { .maxlen = TCP_ULP_BUF_MAX, }; @@ -466,7 +458,7 @@ static int proc_tcp_available_ulp(struct ctl_table *ctl, #ifdef CONFIG_IP_ROUTE_MULTIPATH static int proc_fib_multipath_hash_policy(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = container_of(table->data, struct net, diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 27b4fb6e452b..bad198e6b863 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -6095,9 +6095,8 @@ static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp) #ifdef CONFIG_SYSCTL -static -int addrconf_sysctl_forward(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +static int addrconf_sysctl_forward(struct ctl_table *ctl, int write, + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int val = *valp; @@ -6121,9 +6120,8 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write, return ret; } -static -int addrconf_sysctl_mtu(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +static int addrconf_sysctl_mtu(struct ctl_table *ctl, int write, + void *buffer, size_t *lenp, loff_t *ppos) { struct inet6_dev *idev = ctl->extra1; int min_mtu = IPV6_MIN_MTU; @@ -6193,9 +6191,8 @@ static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int newf) return 0; } -static -int addrconf_sysctl_disable(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +static int addrconf_sysctl_disable(struct ctl_table *ctl, int write, + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int val = *valp; @@ -6219,9 +6216,8 @@ int addrconf_sysctl_disable(struct ctl_table *ctl, int write, return ret; } -static -int addrconf_sysctl_proxy_ndp(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +static int addrconf_sysctl_proxy_ndp(struct ctl_table *ctl, int write, + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int ret; @@ -6262,7 +6258,7 @@ int addrconf_sysctl_proxy_ndp(struct ctl_table *ctl, int write, } static int addrconf_sysctl_addr_gen_mode(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, + void *buffer, size_t *lenp, loff_t *ppos) { int ret = 0; @@ -6324,7 +6320,7 @@ out: } static int addrconf_sysctl_stable_secret(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, + void *buffer, size_t *lenp, loff_t *ppos) { int err; @@ -6391,8 +6387,7 @@ out: static int addrconf_sysctl_ignore_routes_with_linkdown(struct ctl_table *ctl, - int write, - void __user *buffer, + int write, void *buffer, size_t *lenp, loff_t *ppos) { @@ -6492,10 +6487,8 @@ int addrconf_disable_policy(struct ctl_table *ctl, int *valp, int val) return 0; } -static -int addrconf_sysctl_disable_policy(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) +static int addrconf_sysctl_disable_policy(struct ctl_table *ctl, int write, + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int val = *valp; diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 1ecd4e9b0bdf..58f1255295d3 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1835,7 +1835,8 @@ static void ndisc_warn_deprecated_sysctl(struct ctl_table *ctl, } } -int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos) +int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, void *buffer, + size_t *lenp, loff_t *ppos) { struct net_device *dev = ctl->extra1; struct inet6_dev *idev; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 310cbddaa533..acdb31e38412 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -6088,9 +6088,8 @@ static int rt6_stats_seq_show(struct seq_file *seq, void *v) #ifdef CONFIG_SYSCTL -static -int ipv6_sysctl_rtcache_flush(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +static int ipv6_sysctl_rtcache_flush(struct ctl_table *ctl, int write, + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net; int delay; diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index 63b657aa8d29..fac2135aa47b 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -26,8 +26,7 @@ static int auto_flowlabels_min; static int auto_flowlabels_max = IP6_AUTO_FLOW_LABEL_MAX; static int proc_rt6_multipath_hash_policy(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net; int ret; diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 4701edffb1f7..a42e4ed5ab0e 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -1362,8 +1362,7 @@ done: (&((struct mpls_dev *)0)->field) static int mpls_conf_proc(struct ctl_table *ctl, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int oval = *(int *)ctl->data; int ret = proc_dointvec(ctl, write, buffer, lenp, ppos); @@ -2594,7 +2593,7 @@ nolabels: } static int mpls_platform_labels(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = table->data; int platform_labels = net->mpls.platform_labels; diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 8d14a1acbc37..412656c34f20 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -1736,7 +1736,7 @@ static int three = 3; static int proc_do_defense_mode(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct netns_ipvs *ipvs = table->extra2; int *valp = table->data; @@ -1763,7 +1763,7 @@ proc_do_defense_mode(struct ctl_table *table, int write, static int proc_do_sync_threshold(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = table->data; int val[2]; @@ -1788,7 +1788,7 @@ proc_do_sync_threshold(struct ctl_table *table, int write, static int proc_do_sync_ports(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int *valp = table->data; int val = *valp; diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index 9b57330c81f8..31b027b12ff3 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -517,7 +517,7 @@ static unsigned int nf_conntrack_htable_size_user __read_mostly; static int nf_conntrack_hash_sysctl(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret; diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c index bb25d4c794c7..6cb9f9474b05 100644 --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -414,7 +414,7 @@ static struct ctl_table nf_log_sysctl_ftable[] = { }; static int nf_log_proc_dostring(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { const struct nf_logger *logger; char buf[NFLOGGER_NAME_LEN]; diff --git a/net/phonet/sysctl.c b/net/phonet/sysctl.c index 251e750fd9aa..0d0bf41381c2 100644 --- a/net/phonet/sysctl.c +++ b/net/phonet/sysctl.c @@ -49,8 +49,7 @@ void phonet_get_local_port_range(int *min, int *max) } static int proc_local_port_range(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret; int range[2] = {local_port_range[0], local_port_range[1]}; diff --git a/net/rds/tcp.c b/net/rds/tcp.c index 66121bc6f34e..46782fac4c16 100644 --- a/net/rds/tcp.c +++ b/net/rds/tcp.c @@ -62,8 +62,7 @@ static atomic_t rds_tcp_unloading = ATOMIC_INIT(0); static struct kmem_cache *rds_tcp_conn_slab; static int rds_tcp_skbuf_handler(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *fpos); + void *buffer, size_t *lenp, loff_t *fpos); static int rds_tcp_min_sndbuf = SOCK_MIN_SNDBUF; static int rds_tcp_min_rcvbuf = SOCK_MIN_RCVBUF; @@ -676,8 +675,7 @@ static void rds_tcp_sysctl_reset(struct net *net) } static int rds_tcp_skbuf_handler(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *fpos) + void *buffer, size_t *lenp, loff_t *fpos) { struct net *net = current->nsproxy->net_ns; int err; diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c index 4740aa70e652..c16c80963e55 100644 --- a/net/sctp/sysctl.c +++ b/net/sctp/sysctl.c @@ -43,20 +43,15 @@ static unsigned long max_autoclose_max = ? UINT_MAX : MAX_SCHEDULE_TIMEOUT / HZ; static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos); + void *buffer, size_t *lenp, loff_t *ppos); static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos); -static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos); + void *buffer, size_t *lenp, loff_t *ppos); +static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write, void *buffer, + size_t *lenp, loff_t *ppos); static int proc_sctp_do_alpha_beta(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos); + void *buffer, size_t *lenp, loff_t *ppos); static int proc_sctp_do_auth(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos); + void *buffer, size_t *lenp, loff_t *ppos); static struct ctl_table sctp_table[] = { { @@ -343,8 +338,7 @@ static struct ctl_table sctp_net_table[] = { }; static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = current->nsproxy->net_ns; struct ctl_table tbl; @@ -389,8 +383,7 @@ static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write, } static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = current->nsproxy->net_ns; unsigned int min = *(unsigned int *) ctl->extra1; @@ -418,8 +411,7 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write, } static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = current->nsproxy->net_ns; unsigned int min = *(unsigned int *) ctl->extra1; @@ -447,8 +439,7 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write, } static int proc_sctp_do_alpha_beta(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { if (write) pr_warn_once("Changing rto_alpha or rto_beta may lead to " @@ -458,8 +449,7 @@ static int proc_sctp_do_alpha_beta(struct ctl_table *ctl, int write, } static int proc_sctp_do_auth(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { struct net *net = current->nsproxy->net_ns; struct ctl_table tbl; diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c index d75f17b56f0e..999eee1ed61c 100644 --- a/net/sunrpc/sysctl.c +++ b/net/sunrpc/sysctl.c @@ -60,7 +60,7 @@ rpc_unregister_sysctl(void) } static int proc_do_xprt(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { char tmpbuf[256]; size_t len; @@ -70,15 +70,15 @@ static int proc_do_xprt(struct ctl_table *table, int write, return 0; } len = svc_print_xprts(tmpbuf, sizeof(tmpbuf)); - return simple_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len); + return memory_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len); } static int -proc_dodebug(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) +proc_dodebug(struct ctl_table *table, int write, void *buffer, size_t *lenp, + loff_t *ppos) { - char tmpbuf[20], c, *s = NULL; - char __user *p; + char tmpbuf[20], *s = NULL; + char *p; unsigned int value; size_t left, len; @@ -90,18 +90,17 @@ proc_dodebug(struct ctl_table *table, int write, left = *lenp; if (write) { - if (!access_ok(buffer, left)) - return -EFAULT; p = buffer; - while (left && __get_user(c, p) >= 0 && isspace(c)) - left--, p++; + while (left && isspace(*p)) { + left--; + p++; + } if (!left) goto done; if (left > sizeof(tmpbuf) - 1) return -EINVAL; - if (copy_from_user(tmpbuf, p, left)) - return -EFAULT; + memcpy(tmpbuf, p, left); tmpbuf[left] = '\0'; value = simple_strtol(tmpbuf, &s, 0); @@ -121,11 +120,9 @@ proc_dodebug(struct ctl_table *table, int write, len = sprintf(tmpbuf, "0x%04x", *(unsigned int *) table->data); if (len > left) len = left; - if (copy_to_user(buffer, tmpbuf, len)) - return -EFAULT; + memcpy(buffer, tmpbuf, len); if ((left -= len) > 0) { - if (put_user('\n', (char __user *)buffer + len)) - return -EFAULT; + *((char *)buffer + len) = '\n'; left--; } } diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c index 97bca509a391..526da5d4710b 100644 --- a/net/sunrpc/xprtrdma/svc_rdma.c +++ b/net/sunrpc/xprtrdma/svc_rdma.c @@ -80,8 +80,7 @@ atomic_t rdma_stat_sq_prod; * current value. */ static int read_reset_stat(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { atomic_t *stat = (atomic_t *)table->data; @@ -103,8 +102,8 @@ static int read_reset_stat(struct ctl_table *table, int write, len -= *ppos; if (len > *lenp) len = *lenp; - if (len && copy_to_user(buffer, str_buf, len)) - return -EFAULT; + if (len) + memcpy(buffer, str_buf, len); *lenp = len; *ppos += len; } |