From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- include/net/gtp.h | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 include/net/gtp.h (limited to 'include/net/gtp.h') diff --git a/include/net/gtp.h b/include/net/gtp.h new file mode 100644 index 000000000..c0253c870 --- /dev/null +++ b/include/net/gtp.h @@ -0,0 +1,86 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _GTP_H_ +#define _GTP_H_ + +#include +#include +#include + +/* General GTP protocol related definitions. */ + +#define GTP0_PORT 3386 +#define GTP1U_PORT 2152 + +/* GTP messages types */ +#define GTP_ECHO_REQ 1 /* Echo Request */ +#define GTP_ECHO_RSP 2 /* Echo Response */ +#define GTP_TPDU 255 + +#define GTPIE_RECOVERY 14 + +struct gtp0_header { /* According to GSM TS 09.60. */ + __u8 flags; + __u8 type; + __be16 length; + __be16 seq; + __be16 flow; + __u8 number; + __u8 spare[3]; + __be64 tid; +} __attribute__ ((packed)); + +struct gtp1_header { /* According to 3GPP TS 29.060. */ + __u8 flags; + __u8 type; + __be16 length; + __be32 tid; +} __attribute__ ((packed)); + +struct gtp1_header_long { /* According to 3GPP TS 29.060. */ + __u8 flags; + __u8 type; + __be16 length; + __be32 tid; + __be16 seq; + __u8 npdu; + __u8 next; +} __packed; + +/* GTP Information Element */ +struct gtp_ie { + __u8 tag; + __u8 val; +} __packed; + +struct gtp0_packet { + struct gtp0_header gtp0_h; + struct gtp_ie ie; +} __packed; + +struct gtp1u_packet { + struct gtp1_header_long gtp1u_h; + struct gtp_ie ie; +} __packed; + +struct gtp_pdu_session_info { /* According to 3GPP TS 38.415. */ + u8 pdu_type; + u8 qfi; +}; + +static inline bool netif_is_gtp(const struct net_device *dev) +{ + return dev->rtnl_link_ops && + !strcmp(dev->rtnl_link_ops->kind, "gtp"); +} + +#define GTP1_F_NPDU 0x01 +#define GTP1_F_SEQ 0x02 +#define GTP1_F_EXTHDR 0x04 +#define GTP1_F_MASK 0x07 + +struct gtp_ext_hdr { + __u8 len; + __u8 data[]; +}; + +#endif -- cgit v1.3.1