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-rw-r--r--tools/bpf/bpftool/net.c41
-rw-r--r--tools/bpf/bpftool/netlink_dumper.c32
-rw-r--r--tools/lib/bpf/bpf.h6
-rw-r--r--tools/lib/bpf/btf.h6
-rw-r--r--tools/lib/bpf/libbpf.c22
-rw-r--r--tools/lib/bpf/libbpf.h31
-rw-r--r--tools/lib/bpf/netlink.c48
-rw-r--r--tools/lib/bpf/nlattr.c64
-rw-r--r--tools/lib/bpf/nlattr.h65
-rw-r--r--tools/lib/bpf/str_error.c2
-rw-r--r--tools/lib/bpf/str_error.h8
11 files changed, 171 insertions, 154 deletions
diff --git a/tools/bpf/bpftool/net.c b/tools/bpf/bpftool/net.c
index ed205ee57655..d441bb7035ca 100644
--- a/tools/bpf/bpftool/net.c
+++ b/tools/bpf/bpftool/net.c
@@ -69,7 +69,9 @@ static int dump_link_nlmsg(void *cookie, void *msg, struct nlattr **tb)
snprintf(netinfo->devices[netinfo->used_len].devname,
sizeof(netinfo->devices[netinfo->used_len].devname),
"%s",
- tb[IFLA_IFNAME] ? nla_getattr_str(tb[IFLA_IFNAME]) : "");
+ tb[IFLA_IFNAME]
+ ? libbpf_nla_getattr_str(tb[IFLA_IFNAME])
+ : "");
netinfo->used_len++;
return do_xdp_dump(ifinfo, tb);
@@ -83,7 +85,7 @@ static int dump_class_qdisc_nlmsg(void *cookie, void *msg, struct nlattr **tb)
if (tcinfo->is_qdisc) {
/* skip clsact qdisc */
if (tb[TCA_KIND] &&
- strcmp(nla_data(tb[TCA_KIND]), "clsact") == 0)
+ strcmp(libbpf_nla_data(tb[TCA_KIND]), "clsact") == 0)
return 0;
if (info->tcm_handle == 0)
return 0;
@@ -101,7 +103,9 @@ static int dump_class_qdisc_nlmsg(void *cookie, void *msg, struct nlattr **tb)
snprintf(tcinfo->handle_array[tcinfo->used_len].kind,
sizeof(tcinfo->handle_array[tcinfo->used_len].kind),
"%s",
- tb[TCA_KIND] ? nla_getattr_str(tb[TCA_KIND]) : "unknown");
+ tb[TCA_KIND]
+ ? libbpf_nla_getattr_str(tb[TCA_KIND])
+ : "unknown");
tcinfo->used_len++;
return 0;
@@ -127,14 +131,14 @@ static int show_dev_tc_bpf(int sock, unsigned int nl_pid,
tcinfo.array_len = 0;
tcinfo.is_qdisc = false;
- ret = nl_get_class(sock, nl_pid, dev->ifindex, dump_class_qdisc_nlmsg,
- &tcinfo);
+ ret = libbpf_nl_get_class(sock, nl_pid, dev->ifindex,
+ dump_class_qdisc_nlmsg, &tcinfo);
if (ret)
goto out;
tcinfo.is_qdisc = true;
- ret = nl_get_qdisc(sock, nl_pid, dev->ifindex, dump_class_qdisc_nlmsg,
- &tcinfo);
+ ret = libbpf_nl_get_qdisc(sock, nl_pid, dev->ifindex,
+ dump_class_qdisc_nlmsg, &tcinfo);
if (ret)
goto out;
@@ -142,10 +146,9 @@ static int show_dev_tc_bpf(int sock, unsigned int nl_pid,
filter_info.ifindex = dev->ifindex;
for (i = 0; i < tcinfo.used_len; i++) {
filter_info.kind = tcinfo.handle_array[i].kind;
- ret = nl_get_filter(sock, nl_pid, dev->ifindex,
- tcinfo.handle_array[i].handle,
- dump_filter_nlmsg,
- &filter_info);
+ ret = libbpf_nl_get_filter(sock, nl_pid, dev->ifindex,
+ tcinfo.handle_array[i].handle,
+ dump_filter_nlmsg, &filter_info);
if (ret)
goto out;
}
@@ -153,22 +156,22 @@ static int show_dev_tc_bpf(int sock, unsigned int nl_pid,
/* root, ingress and egress handle */
handle = TC_H_ROOT;
filter_info.kind = "root";
- ret = nl_get_filter(sock, nl_pid, dev->ifindex, handle,
- dump_filter_nlmsg, &filter_info);
+ ret = libbpf_nl_get_filter(sock, nl_pid, dev->ifindex, handle,
+ dump_filter_nlmsg, &filter_info);
if (ret)
goto out;
handle = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
filter_info.kind = "clsact/ingress";
- ret = nl_get_filter(sock, nl_pid, dev->ifindex, handle,
- dump_filter_nlmsg, &filter_info);
+ ret = libbpf_nl_get_filter(sock, nl_pid, dev->ifindex, handle,
+ dump_filter_nlmsg, &filter_info);
if (ret)
goto out;
handle = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_EGRESS);
filter_info.kind = "clsact/egress";
- ret = nl_get_filter(sock, nl_pid, dev->ifindex, handle,
- dump_filter_nlmsg, &filter_info);
+ ret = libbpf_nl_get_filter(sock, nl_pid, dev->ifindex, handle,
+ dump_filter_nlmsg, &filter_info);
if (ret)
goto out;
@@ -196,7 +199,7 @@ static int do_show(int argc, char **argv)
usage();
}
- sock = bpf_netlink_open(&nl_pid);
+ sock = libbpf_netlink_open(&nl_pid);
if (sock < 0) {
fprintf(stderr, "failed to open netlink sock\n");
return -1;
@@ -211,7 +214,7 @@ static int do_show(int argc, char **argv)
jsonw_start_array(json_wtr);
NET_START_OBJECT;
NET_START_ARRAY("xdp", "%s:\n");
- ret = nl_get_link(sock, nl_pid, dump_link_nlmsg, &dev_array);
+ ret = libbpf_nl_get_link(sock, nl_pid, dump_link_nlmsg, &dev_array);
NET_END_ARRAY("\n");
if (!ret) {
diff --git a/tools/bpf/bpftool/netlink_dumper.c b/tools/bpf/bpftool/netlink_dumper.c
index 6f5e9cc6836c..4e9f4531269f 100644
--- a/tools/bpf/bpftool/netlink_dumper.c
+++ b/tools/bpf/bpftool/netlink_dumper.c
@@ -21,7 +21,7 @@ static void xdp_dump_prog_id(struct nlattr **tb, int attr,
if (new_json_object)
NET_START_OBJECT
NET_DUMP_STR("mode", " %s", mode);
- NET_DUMP_UINT("id", " id %u", nla_getattr_u32(tb[attr]))
+ NET_DUMP_UINT("id", " id %u", libbpf_nla_getattr_u32(tb[attr]))
if (new_json_object)
NET_END_OBJECT
}
@@ -32,13 +32,13 @@ static int do_xdp_dump_one(struct nlattr *attr, unsigned int ifindex,
struct nlattr *tb[IFLA_XDP_MAX + 1];
unsigned char mode;
- if (nla_parse_nested(tb, IFLA_XDP_MAX, attr, NULL) < 0)
+ if (libbpf_nla_parse_nested(tb, IFLA_XDP_MAX, attr, NULL) < 0)
return -1;
if (!tb[IFLA_XDP_ATTACHED])
return 0;
- mode = nla_getattr_u8(tb[IFLA_XDP_ATTACHED]);
+ mode = libbpf_nla_getattr_u8(tb[IFLA_XDP_ATTACHED]);
if (mode == XDP_ATTACHED_NONE)
return 0;
@@ -75,14 +75,14 @@ int do_xdp_dump(struct ifinfomsg *ifinfo, struct nlattr **tb)
return 0;
return do_xdp_dump_one(tb[IFLA_XDP], ifinfo->ifi_index,
- nla_getattr_str(tb[IFLA_IFNAME]));
+ libbpf_nla_getattr_str(tb[IFLA_IFNAME]));
}
static int do_bpf_dump_one_act(struct nlattr *attr)
{
struct nlattr *tb[TCA_ACT_BPF_MAX + 1];
- if (nla_parse_nested(tb, TCA_ACT_BPF_MAX, attr, NULL) < 0)
+ if (libbpf_nla_parse_nested(tb, TCA_ACT_BPF_MAX, attr, NULL) < 0)
return -LIBBPF_ERRNO__NLPARSE;
if (!tb[TCA_ACT_BPF_PARMS])
@@ -91,10 +91,10 @@ static int do_bpf_dump_one_act(struct nlattr *attr)
NET_START_OBJECT_NESTED2;
if (tb[TCA_ACT_BPF_NAME])
NET_DUMP_STR("name", "%s",
- nla_getattr_str(tb[TCA_ACT_BPF_NAME]));
+ libbpf_nla_getattr_str(tb[TCA_ACT_BPF_NAME]));
if (tb[TCA_ACT_BPF_ID])
NET_DUMP_UINT("id", " id %u",
- nla_getattr_u32(tb[TCA_ACT_BPF_ID]));
+ libbpf_nla_getattr_u32(tb[TCA_ACT_BPF_ID]));
NET_END_OBJECT_NESTED;
return 0;
}
@@ -106,10 +106,11 @@ static int do_dump_one_act(struct nlattr *attr)
if (!attr)
return 0;
- if (nla_parse_nested(tb, TCA_ACT_MAX, attr, NULL) < 0)
+ if (libbpf_nla_parse_nested(tb, TCA_ACT_MAX, attr, NULL) < 0)
return -LIBBPF_ERRNO__NLPARSE;
- if (tb[TCA_ACT_KIND] && strcmp(nla_data(tb[TCA_ACT_KIND]), "bpf") == 0)
+ if (tb[TCA_ACT_KIND] &&
+ strcmp(libbpf_nla_data(tb[TCA_ACT_KIND]), "bpf") == 0)
return do_bpf_dump_one_act(tb[TCA_ACT_OPTIONS]);
return 0;
@@ -120,7 +121,7 @@ static int do_bpf_act_dump(struct nlattr *attr)
struct nlattr *tb[TCA_ACT_MAX_PRIO + 1];
int act, ret;
- if (nla_parse_nested(tb, TCA_ACT_MAX_PRIO, attr, NULL) < 0)
+ if (libbpf_nla_parse_nested(tb, TCA_ACT_MAX_PRIO, attr, NULL) < 0)
return -LIBBPF_ERRNO__NLPARSE;
NET_START_ARRAY("act", " %s [");
@@ -139,13 +140,15 @@ static int do_bpf_filter_dump(struct nlattr *attr)
struct nlattr *tb[TCA_BPF_MAX + 1];
int ret;
- if (nla_parse_nested(tb, TCA_BPF_MAX, attr, NULL) < 0)
+ if (libbpf_nla_parse_nested(tb, TCA_BPF_MAX, attr, NULL) < 0)
return -LIBBPF_ERRNO__NLPARSE;
if (tb[TCA_BPF_NAME])
- NET_DUMP_STR("name", " %s", nla_getattr_str(tb[TCA_BPF_NAME]));
+ NET_DUMP_STR("name", " %s",
+ libbpf_nla_getattr_str(tb[TCA_BPF_NAME]));
if (tb[TCA_BPF_ID])
- NET_DUMP_UINT("id", " id %u", nla_getattr_u32(tb[TCA_BPF_ID]));
+ NET_DUMP_UINT("id", " id %u",
+ libbpf_nla_getattr_u32(tb[TCA_BPF_ID]));
if (tb[TCA_BPF_ACT]) {
ret = do_bpf_act_dump(tb[TCA_BPF_ACT]);
if (ret)
@@ -160,7 +163,8 @@ int do_filter_dump(struct tcmsg *info, struct nlattr **tb, const char *kind,
{
int ret = 0;
- if (tb[TCA_OPTIONS] && strcmp(nla_data(tb[TCA_KIND]), "bpf") == 0) {
+ if (tb[TCA_OPTIONS] &&
+ strcmp(libbpf_nla_data(tb[TCA_KIND]), "bpf") == 0) {
NET_START_OBJECT;
if (devname[0] != '\0')
NET_DUMP_STR("devname", "%s", devname);
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index 6f38164b2618..4c78f61b7c71 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -20,8 +20,8 @@
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses>
*/
-#ifndef __BPF_BPF_H
-#define __BPF_BPF_H
+#ifndef __LIBBPF_BPF_H
+#define __LIBBPF_BPF_H
#include <linux/bpf.h>
#include <stdbool.h>
@@ -111,4 +111,4 @@ int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len,
__u32 *prog_id, __u32 *fd_type, __u64 *probe_offset,
__u64 *probe_addr);
-#endif
+#endif /* __LIBBPF_BPF_H */
diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h
index 4897e0724d4e..d5d20682eeb6 100644
--- a/tools/lib/bpf/btf.h
+++ b/tools/lib/bpf/btf.h
@@ -1,8 +1,8 @@
/* SPDX-License-Identifier: LGPL-2.1 */
/* Copyright (c) 2018 Facebook */
-#ifndef __BPF_BTF_H
-#define __BPF_BTF_H
+#ifndef __LIBBPF_BTF_H
+#define __LIBBPF_BTF_H
#include <linux/types.h>
@@ -23,4 +23,4 @@ int btf__resolve_type(const struct btf *btf, __u32 type_id);
int btf__fd(const struct btf *btf);
const char *btf__name_by_offset(const struct btf *btf, __u32 offset);
-#endif
+#endif /* __LIBBPF_BTF_H */
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 9e68fd9fcfca..85de1ebd4cb0 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -470,7 +470,8 @@ static int bpf_object__elf_init(struct bpf_object *obj)
obj->efile.fd = open(obj->path, O_RDONLY);
if (obj->efile.fd < 0) {
char errmsg[STRERR_BUFSIZE];
- char *cp = str_error(errno, errmsg, sizeof(errmsg));
+ char *cp = libbpf_strerror_r(errno, errmsg,
+ sizeof(errmsg));
pr_warning("failed to open %s: %s\n", obj->path, cp);
return -errno;
@@ -811,7 +812,8 @@ static int bpf_object__elf_collect(struct bpf_object *obj)
data->d_size, name, idx);
if (err) {
char errmsg[STRERR_BUFSIZE];
- char *cp = str_error(-err, errmsg, sizeof(errmsg));
+ char *cp = libbpf_strerror_r(-err, errmsg,
+ sizeof(errmsg));
pr_warning("failed to alloc program %s (%s): %s",
name, obj->path, cp);
@@ -1140,7 +1142,7 @@ bpf_object__create_maps(struct bpf_object *obj)
*pfd = bpf_create_map_xattr(&create_attr);
if (*pfd < 0 && create_attr.btf_key_type_id) {
- cp = str_error(errno, errmsg, sizeof(errmsg));
+ cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg));
pr_warning("Error in bpf_create_map_xattr(%s):%s(%d). Retrying without BTF.\n",
map->name, cp, errno);
create_attr.btf_fd = 0;
@@ -1155,7 +1157,7 @@ bpf_object__create_maps(struct bpf_object *obj)
size_t j;
err = *pfd;
- cp = str_error(errno, errmsg, sizeof(errmsg));
+ cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg));
pr_warning("failed to create map (name: '%s'): %s\n",
map->name, cp);
for (j = 0; j < i; j++)
@@ -1339,7 +1341,7 @@ load_program(enum bpf_prog_type type, enum bpf_attach_type expected_attach_type,
}
ret = -LIBBPF_ERRNO__LOAD;
- cp = str_error(errno, errmsg, sizeof(errmsg));
+ cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg));
pr_warning("load bpf program failed: %s\n", cp);
if (log_buf && log_buf[0] != '\0') {
@@ -1377,7 +1379,7 @@ out:
int
bpf_program__load(struct bpf_program *prog,
- char *license, u32 kern_version)
+ char *license, __u32 kern_version)
{
int err = 0, fd, i;
@@ -1655,7 +1657,7 @@ static int check_path(const char *path)
dir = dirname(dname);
if (statfs(dir, &st_fs)) {
- cp = str_error(errno, errmsg, sizeof(errmsg));
+ cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg));
pr_warning("failed to statfs %s: %s\n", dir, cp);
err = -errno;
}
@@ -1691,7 +1693,7 @@ int bpf_program__pin_instance(struct bpf_program *prog, const char *path,
}
if (bpf_obj_pin(prog->instances.fds[instance], path)) {
- cp = str_error(errno, errmsg, sizeof(errmsg));
+ cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg));
pr_warning("failed to pin program: %s\n", cp);
return -errno;
}
@@ -1709,7 +1711,7 @@ static int make_dir(const char *path)
err = -errno;
if (err) {
- cp = str_error(-err, errmsg, sizeof(errmsg));
+ cp = libbpf_strerror_r(-err, errmsg, sizeof(errmsg));
pr_warning("failed to mkdir %s: %s\n", path, cp);
}
return err;
@@ -1771,7 +1773,7 @@ int bpf_map__pin(struct bpf_map *map, const char *path)
}
if (bpf_obj_pin(map->fd, path)) {
- cp = str_error(errno, errmsg, sizeof(errmsg));
+ cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg));
pr_warning("failed to pin map: %s\n", cp);
return -errno;
}
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 2ed24d3f80b3..fbfc2aec0f0d 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -20,8 +20,8 @@
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses>
*/
-#ifndef __BPF_LIBBPF_H
-#define __BPF_LIBBPF_H
+#ifndef __LIBBPF_LIBBPF_H
+#define __LIBBPF_LIBBPF_H
#include <stdio.h>
#include <stdint.h>
@@ -129,7 +129,7 @@ void bpf_program__set_ifindex(struct bpf_program *prog, __u32 ifindex);
const char *bpf_program__title(struct bpf_program *prog, bool needs_copy);
int bpf_program__load(struct bpf_program *prog, char *license,
- u32 kern_version);
+ __u32 kern_version);
int bpf_program__fd(struct bpf_program *prog);
int bpf_program__pin_instance(struct bpf_program *prog, const char *path,
int instance);
@@ -304,18 +304,15 @@ int bpf_perf_event_read_simple(void *mem, unsigned long size,
void **buf, size_t *buf_len,
bpf_perf_event_print_t fn, void *priv);
-struct nlmsghdr;
struct nlattr;
-typedef int (*dump_nlmsg_t)(void *cookie, void *msg, struct nlattr **tb);
-typedef int (*__dump_nlmsg_t)(struct nlmsghdr *nlmsg, dump_nlmsg_t,
- void *cookie);
-int bpf_netlink_open(unsigned int *nl_pid);
-int nl_get_link(int sock, unsigned int nl_pid, dump_nlmsg_t dump_link_nlmsg,
- void *cookie);
-int nl_get_class(int sock, unsigned int nl_pid, int ifindex,
- dump_nlmsg_t dump_class_nlmsg, void *cookie);
-int nl_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
- dump_nlmsg_t dump_qdisc_nlmsg, void *cookie);
-int nl_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
- dump_nlmsg_t dump_filter_nlmsg, void *cookie);
-#endif
+typedef int (*libbpf_dump_nlmsg_t)(void *cookie, void *msg, struct nlattr **tb);
+int libbpf_netlink_open(unsigned int *nl_pid);
+int libbpf_nl_get_link(int sock, unsigned int nl_pid,
+ libbpf_dump_nlmsg_t dump_link_nlmsg, void *cookie);
+int libbpf_nl_get_class(int sock, unsigned int nl_pid, int ifindex,
+ libbpf_dump_nlmsg_t dump_class_nlmsg, void *cookie);
+int libbpf_nl_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
+ libbpf_dump_nlmsg_t dump_qdisc_nlmsg, void *cookie);
+int libbpf_nl_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
+ libbpf_dump_nlmsg_t dump_filter_nlmsg, void *cookie);
+#endif /* __LIBBPF_LIBBPF_H */
diff --git a/tools/lib/bpf/netlink.c b/tools/lib/bpf/netlink.c
index fde1d7bf8199..2d2edbbd8ae8 100644
--- a/tools/lib/bpf/netlink.c
+++ b/tools/lib/bpf/netlink.c
@@ -18,7 +18,10 @@
#define SOL_NETLINK 270
#endif
-int bpf_netlink_open(__u32 *nl_pid)
+typedef int (*__dump_nlmsg_t)(struct nlmsghdr *nlmsg, libbpf_dump_nlmsg_t,
+ void *cookie);
+
+int libbpf_netlink_open(__u32 *nl_pid)
{
struct sockaddr_nl sa;
socklen_t addrlen;
@@ -62,7 +65,7 @@ cleanup:
}
static int bpf_netlink_recv(int sock, __u32 nl_pid, int seq,
- __dump_nlmsg_t _fn, dump_nlmsg_t fn,
+ __dump_nlmsg_t _fn, libbpf_dump_nlmsg_t fn,
void *cookie)
{
bool multipart = true;
@@ -100,7 +103,7 @@ static int bpf_netlink_recv(int sock, __u32 nl_pid, int seq,
if (!err->error)
continue;
ret = err->error;
- nla_dump_errormsg(nh);
+ libbpf_nla_dump_errormsg(nh);
goto done;
case NLMSG_DONE:
return 0;
@@ -130,7 +133,7 @@ int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags)
} req;
__u32 nl_pid;
- sock = bpf_netlink_open(&nl_pid);
+ sock = libbpf_netlink_open(&nl_pid);
if (sock < 0)
return sock;
@@ -178,8 +181,8 @@ cleanup:
return ret;
}
-static int __dump_link_nlmsg(struct nlmsghdr *nlh, dump_nlmsg_t dump_link_nlmsg,
- void *cookie)
+static int __dump_link_nlmsg(struct nlmsghdr *nlh,
+ libbpf_dump_nlmsg_t dump_link_nlmsg, void *cookie)
{
struct nlattr *tb[IFLA_MAX + 1], *attr;
struct ifinfomsg *ifi = NLMSG_DATA(nlh);
@@ -187,14 +190,14 @@ static int __dump_link_nlmsg(struct nlmsghdr *nlh, dump_nlmsg_t dump_link_nlmsg,
len = nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
attr = (struct nlattr *) ((void *) ifi + NLMSG_ALIGN(sizeof(*ifi)));
- if (nla_parse(tb, IFLA_MAX, attr, len, NULL) != 0)
+ if (libbpf_nla_parse(tb, IFLA_MAX, attr, len, NULL) != 0)
return -LIBBPF_ERRNO__NLPARSE;
return dump_link_nlmsg(cookie, ifi, tb);
}
-int nl_get_link(int sock, unsigned int nl_pid, dump_nlmsg_t dump_link_nlmsg,
- void *cookie)
+int libbpf_nl_get_link(int sock, unsigned int nl_pid,
+ libbpf_dump_nlmsg_t dump_link_nlmsg, void *cookie)
{
struct {
struct nlmsghdr nlh;
@@ -216,7 +219,8 @@ int nl_get_link(int sock, unsigned int nl_pid, dump_nlmsg_t dump_link_nlmsg,
}
static int __dump_class_nlmsg(struct nlmsghdr *nlh,
- dump_nlmsg_t dump_class_nlmsg, void *cookie)
+ libbpf_dump_nlmsg_t dump_class_nlmsg,
+ void *cookie)
{
struct nlattr *tb[TCA_MAX + 1], *attr;
struct tcmsg *t = NLMSG_DATA(nlh);
@@ -224,14 +228,14 @@ static int __dump_class_nlmsg(struct nlmsghdr *nlh,
len = nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*t));
attr = (struct nlattr *) ((void *) t + NLMSG_ALIGN(sizeof(*t)));
- if (nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
+ if (libbpf_nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
return -LIBBPF_ERRNO__NLPARSE;
return dump_class_nlmsg(cookie, t, tb);
}
-int nl_get_class(int sock, unsigned int nl_pid, int ifindex,
- dump_nlmsg_t dump_class_nlmsg, void *cookie)
+int libbpf_nl_get_class(int sock, unsigned int nl_pid, int ifindex,
+ libbpf_dump_nlmsg_t dump_class_nlmsg, void *cookie)
{
struct {
struct nlmsghdr nlh;
@@ -254,7 +258,8 @@ int nl_get_class(int sock, unsigned int nl_pid, int ifindex,
}
static int __dump_qdisc_nlmsg(struct nlmsghdr *nlh,
- dump_nlmsg_t dump_qdisc_nlmsg, void *cookie)
+ libbpf_dump_nlmsg_t dump_qdisc_nlmsg,
+ void *cookie)
{
struct nlattr *tb[TCA_MAX + 1], *attr;
struct tcmsg *t = NLMSG_DATA(nlh);
@@ -262,14 +267,14 @@ static int __dump_qdisc_nlmsg(struct nlmsghdr *nlh,
len = nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*t));
attr = (struct nlattr *) ((void *) t + NLMSG_ALIGN(sizeof(*t)));
- if (nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
+ if (libbpf_nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
return -LIBBPF_ERRNO__NLPARSE;
return dump_qdisc_nlmsg(cookie, t, tb);
}
-int nl_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
- dump_nlmsg_t dump_qdisc_nlmsg, void *cookie)
+int libbpf_nl_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
+ libbpf_dump_nlmsg_t dump_qdisc_nlmsg, void *cookie)
{
struct {
struct nlmsghdr nlh;
@@ -292,7 +297,8 @@ int nl_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
}
static int __dump_filter_nlmsg(struct nlmsghdr *nlh,
- dump_nlmsg_t dump_filter_nlmsg, void *cookie)
+ libbpf_dump_nlmsg_t dump_filter_nlmsg,
+ void *cookie)
{
struct nlattr *tb[TCA_MAX + 1], *attr;
struct tcmsg *t = NLMSG_DATA(nlh);
@@ -300,14 +306,14 @@ static int __dump_filter_nlmsg(struct nlmsghdr *nlh,
len = nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*t));
attr = (struct nlattr *) ((void *) t + NLMSG_ALIGN(sizeof(*t)));
- if (nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
+ if (libbpf_nla_parse(tb, TCA_MAX, attr, len, NULL) != 0)
return -LIBBPF_ERRNO__NLPARSE;
return dump_filter_nlmsg(cookie, t, tb);
}
-int nl_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
- dump_nlmsg_t dump_filter_nlmsg, void *cookie)
+int libbpf_nl_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
+ libbpf_dump_nlmsg_t dump_filter_nlmsg, void *cookie)
{
struct {
struct nlmsghdr nlh;
diff --git a/tools/lib/bpf/nlattr.c b/tools/lib/bpf/nlattr.c
index 49f514119bdb..e52257a7367a 100644
--- a/tools/lib/bpf/nlattr.c
+++ b/tools/lib/bpf/nlattr.c
@@ -17,13 +17,13 @@
#include <string.h>
#include <stdio.h>
-static uint16_t nla_attr_minlen[NLA_TYPE_MAX+1] = {
- [NLA_U8] = sizeof(uint8_t),
- [NLA_U16] = sizeof(uint16_t),
- [NLA_U32] = sizeof(uint32_t),
- [NLA_U64] = sizeof(uint64_t),
- [NLA_STRING] = 1,
- [NLA_FLAG] = 0,
+static uint16_t nla_attr_minlen[LIBBPF_NLA_TYPE_MAX+1] = {
+ [LIBBPF_NLA_U8] = sizeof(uint8_t),
+ [LIBBPF_NLA_U16] = sizeof(uint16_t),
+ [LIBBPF_NLA_U32] = sizeof(uint32_t),
+ [LIBBPF_NLA_U64] = sizeof(uint64_t),
+ [LIBBPF_NLA_STRING] = 1,
+ [LIBBPF_NLA_FLAG] = 0,
};
static struct nlattr *nla_next(const struct nlattr *nla, int *remaining)
@@ -47,9 +47,9 @@ static int nla_type(const struct nlattr *nla)
}
static int validate_nla(struct nlattr *nla, int maxtype,
- struct nla_policy *policy)
+ struct libbpf_nla_policy *policy)
{
- struct nla_policy *pt;
+ struct libbpf_nla_policy *pt;
unsigned int minlen = 0;
int type = nla_type(nla);
@@ -58,23 +58,24 @@ static int validate_nla(struct nlattr *nla, int maxtype,
pt = &policy[type];
- if (pt->type > NLA_TYPE_MAX)
+ if (pt->type > LIBBPF_NLA_TYPE_MAX)
return 0;
if (pt->minlen)
minlen = pt->minlen;
- else if (pt->type != NLA_UNSPEC)
+ else if (pt->type != LIBBPF_NLA_UNSPEC)
minlen = nla_attr_minlen[pt->type];
- if (nla_len(nla) < minlen)
+ if (libbpf_nla_len(nla) < minlen)
return -1;
- if (pt->maxlen && nla_len(nla) > pt->maxlen)
+ if (pt->maxlen && libbpf_nla_len(nla) > pt->maxlen)
return -1;
- if (pt->type == NLA_STRING) {
- char *data = nla_data(nla);
- if (data[nla_len(nla) - 1] != '\0')
+ if (pt->type == LIBBPF_NLA_STRING) {
+ char *data = libbpf_nla_data(nla);
+
+ if (data[libbpf_nla_len(nla) - 1] != '\0')
return -1;
}
@@ -104,15 +105,15 @@ static inline int nlmsg_len(const struct nlmsghdr *nlh)
* @see nla_validate
* @return 0 on success or a negative error code.
*/
-int nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head, int len,
- struct nla_policy *policy)
+int libbpf_nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head,
+ int len, struct libbpf_nla_policy *policy)
{
struct nlattr *nla;
int rem, err;
memset(tb, 0, sizeof(struct nlattr *) * (maxtype + 1));
- nla_for_each_attr(nla, head, len, rem) {
+ libbpf_nla_for_each_attr(nla, head, len, rem) {
int type = nla_type(nla);
if (type > maxtype)
@@ -144,23 +145,25 @@ errout:
* @arg policy Attribute validation policy.
*
* Feeds the stream of attributes nested into the specified attribute
- * to nla_parse().
+ * to libbpf_nla_parse().
*
- * @see nla_parse
+ * @see libbpf_nla_parse
* @return 0 on success or a negative error code.
*/
-int nla_parse_nested(struct nlattr *tb[], int maxtype, struct nlattr *nla,
- struct nla_policy *policy)
+int libbpf_nla_parse_nested(struct nlattr *tb[], int maxtype,
+ struct nlattr *nla,
+ struct libbpf_nla_policy *policy)
{
- return nla_parse(tb, maxtype, nla_data(nla), nla_len(nla), policy);
+ return libbpf_nla_parse(tb, maxtype, libbpf_nla_data(nla),
+ libbpf_nla_len(nla), policy);
}
/* dump netlink extended ack error message */
-int nla_dump_errormsg(struct nlmsghdr *nlh)
+int libbpf_nla_dump_errormsg(struct nlmsghdr *nlh)
{
- struct nla_policy extack_policy[NLMSGERR_ATTR_MAX + 1] = {
- [NLMSGERR_ATTR_MSG] = { .type = NLA_STRING },
- [NLMSGERR_ATTR_OFFS] = { .type = NLA_U32 },
+ struct libbpf_nla_policy extack_policy[NLMSGERR_ATTR_MAX + 1] = {
+ [NLMSGERR_ATTR_MSG] = { .type = LIBBPF_NLA_STRING },
+ [NLMSGERR_ATTR_OFFS] = { .type = LIBBPF_NLA_U32 },
};
struct nlattr *tb[NLMSGERR_ATTR_MAX + 1], *attr;
struct nlmsgerr *err;
@@ -181,14 +184,15 @@ int nla_dump_errormsg(struct nlmsghdr *nlh)
attr = (struct nlattr *) ((void *) err + hlen);
alen = nlh->nlmsg_len - hlen;
- if (nla_parse(tb, NLMSGERR_ATTR_MAX, attr, alen, extack_policy) != 0) {
+ if (libbpf_nla_parse(tb, NLMSGERR_ATTR_MAX, attr, alen,
+ extack_policy) != 0) {
fprintf(stderr,
"Failed to parse extended error attributes\n");
return 0;
}
if (tb[NLMSGERR_ATTR_MSG])
- errmsg = (char *) nla_data(tb[NLMSGERR_ATTR_MSG]);
+ errmsg = (char *) libbpf_nla_data(tb[NLMSGERR_ATTR_MSG]);
fprintf(stderr, "Kernel error message: %s\n", errmsg);
diff --git a/tools/lib/bpf/nlattr.h b/tools/lib/bpf/nlattr.h
index a6e2396bce7c..7198584a3040 100644
--- a/tools/lib/bpf/nlattr.h
+++ b/tools/lib/bpf/nlattr.h
@@ -11,8 +11,8 @@
* Copyright (c) 2003-2013 Thomas Graf <tgraf@suug.ch>
*/
-#ifndef __NLATTR_H
-#define __NLATTR_H
+#ifndef __LIBBPF_NLATTR_H
+#define __LIBBPF_NLATTR_H
#include <stdint.h>
#include <linux/netlink.h>
@@ -23,19 +23,19 @@
* Standard attribute types to specify validation policy
*/
enum {
- NLA_UNSPEC, /**< Unspecified type, binary data chunk */
- NLA_U8, /**< 8 bit integer */
- NLA_U16, /**< 16 bit integer */
- NLA_U32, /**< 32 bit integer */
- NLA_U64, /**< 64 bit integer */
- NLA_STRING, /**< NUL terminated character string */
- NLA_FLAG, /**< Flag */
- NLA_MSECS, /**< Micro seconds (64bit) */
- NLA_NESTED, /**< Nested attributes */
- __NLA_TYPE_MAX,
+ LIBBPF_NLA_UNSPEC, /**< Unspecified type, binary data chunk */
+ LIBBPF_NLA_U8, /**< 8 bit integer */
+ LIBBPF_NLA_U16, /**< 16 bit integer */
+ LIBBPF_NLA_U32, /**< 32 bit integer */
+ LIBBPF_NLA_U64, /**< 64 bit integer */
+ LIBBPF_NLA_STRING, /**< NUL terminated character string */
+ LIBBPF_NLA_FLAG, /**< Flag */
+ LIBBPF_NLA_MSECS, /**< Micro seconds (64bit) */
+ LIBBPF_NLA_NESTED, /**< Nested attributes */
+ __LIBBPF_NLA_TYPE_MAX,
};
-#define NLA_TYPE_MAX (__NLA_TYPE_MAX - 1)
+#define LIBBPF_NLA_TYPE_MAX (__LIBBPF_NLA_TYPE_MAX - 1)
/**
* @ingroup attr
@@ -43,8 +43,8 @@ enum {
*
* See section @core_doc{core_attr_parse,Attribute Parsing} for more details.
*/
-struct nla_policy {
- /** Type of attribute or NLA_UNSPEC */
+struct libbpf_nla_policy {
+ /** Type of attribute or LIBBPF_NLA_UNSPEC */
uint16_t type;
/** Minimal length of payload required */
@@ -62,49 +62,50 @@ struct nla_policy {
* @arg len length of attribute stream
* @arg rem initialized to len, holds bytes currently remaining in stream
*/
-#define nla_for_each_attr(pos, head, len, rem) \
+#define libbpf_nla_for_each_attr(pos, head, len, rem) \
for (pos = head, rem = len; \
nla_ok(pos, rem); \
pos = nla_next(pos, &(rem)))
/**
- * nla_data - head of payload
+ * libbpf_nla_data - head of payload
* @nla: netlink attribute
*/
-static inline void *nla_data(const struct nlattr *nla)
+static inline void *libbpf_nla_data(const struct nlattr *nla)
{
return (char *) nla + NLA_HDRLEN;
}
-static inline uint8_t nla_getattr_u8(const struct nlattr *nla)
+static inline uint8_t libbpf_nla_getattr_u8(const struct nlattr *nla)
{
- return *(uint8_t *)nla_data(nla);
+ return *(uint8_t *)libbpf_nla_data(nla);
}
-static inline uint32_t nla_getattr_u32(const struct nlattr *nla)
+static inline uint32_t libbpf_nla_getattr_u32(const struct nlattr *nla)
{
- return *(uint32_t *)nla_data(nla);
+ return *(uint32_t *)libbpf_nla_data(nla);
}
-static inline const char *nla_getattr_str(const struct nlattr *nla)
+static inline const char *libbpf_nla_getattr_str(const struct nlattr *nla)
{
- return (const char *)nla_data(nla);
+ return (const char *)libbpf_nla_data(nla);
}
/**
- * nla_len - length of payload
+ * libbpf_nla_len - length of payload
* @nla: netlink attribute
*/
-static inline int nla_len(const struct nlattr *nla)
+static inline int libbpf_nla_len(const struct nlattr *nla)
{
return nla->nla_len - NLA_HDRLEN;
}
-int nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head, int len,
- struct nla_policy *policy);
-int nla_parse_nested(struct nlattr *tb[], int maxtype, struct nlattr *nla,
- struct nla_policy *policy);
+int libbpf_nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head,
+ int len, struct libbpf_nla_policy *policy);
+int libbpf_nla_parse_nested(struct nlattr *tb[], int maxtype,
+ struct nlattr *nla,
+ struct libbpf_nla_policy *policy);
-int nla_dump_errormsg(struct nlmsghdr *nlh);
+int libbpf_nla_dump_errormsg(struct nlmsghdr *nlh);
-#endif /* __NLATTR_H */
+#endif /* __LIBBPF_NLATTR_H */
diff --git a/tools/lib/bpf/str_error.c b/tools/lib/bpf/str_error.c
index b8798114a357..3d211b642cb5 100644
--- a/tools/lib/bpf/str_error.c
+++ b/tools/lib/bpf/str_error.c
@@ -9,7 +9,7 @@
* libc, while checking strerror_r() return to avoid having to check this in
* all places calling it.
*/
-char *str_error(int err, char *dst, int len)
+char *libbpf_strerror_r(int err, char *dst, int len)
{
int ret = strerror_r(err, dst, len);
if (ret)
diff --git a/tools/lib/bpf/str_error.h b/tools/lib/bpf/str_error.h
index 355b1db571d1..b9157f5eebde 100644
--- a/tools/lib/bpf/str_error.h
+++ b/tools/lib/bpf/str_error.h
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: LGPL-2.1
-#ifndef BPF_STR_ERROR
-#define BPF_STR_ERROR
+#ifndef __LIBBPF_STR_ERROR_H
+#define __LIBBPF_STR_ERROR_H
-char *str_error(int err, char *dst, int len);
-#endif // BPF_STR_ERROR
+char *libbpf_strerror_r(int err, char *dst, int len);
+#endif /* __LIBBPF_STR_ERROR_H */