add osmo_pfcp_ie_outer_header_creation_to_str_*()

Make osmo_pfcp_enc_to_str_outer_header_creation() as
osmo_pfcp_ie_outer_header_creation_to_str_*() functions.

Used by I0d4d9edcfc94b61bdc74cfd4ff837f151d1c28ae (osmo-upf)

Change-Id: I4ad1570485c8081b82284e4e6b4de4d7eed414b0

include/osmocom/pfcp/pfcp_ies_custom.h

@@ -161,6 +161,10 @@ struct osmo_pfcp_ie_outer_header_creation {
 	uint32_t s_tag;
 };
 
+int osmo_pfcp_ie_outer_header_creation_to_str_buf(char *buf, size_t buflen,
+						  const struct osmo_pfcp_ie_outer_header_creation *ohc);
+char *osmo_pfcp_ie_outer_header_creation_to_str_c(void *ctx, const struct osmo_pfcp_ie_outer_header_creation *ohc);
+
 /* 3GPP TS 29.244 8.2.64. */
 struct osmo_pfcp_ie_outer_header_removal {
 	enum osmo_pfcp_outer_header_removal_desc desc;

src/libosmo-pfcp/pfcp_ies_custom.c

@@ -857,9 +857,9 @@ int osmo_pfcp_enc_outer_header_creation(struct osmo_gtlv_put *tlv, const void *d
 	return 0;
 }
 
-int osmo_pfcp_enc_to_str_outer_header_creation(char *buf, size_t buflen, const void *encode_from)
+int osmo_pfcp_ie_outer_header_creation_to_str_buf(char *buf, size_t buflen,
+						  const struct osmo_pfcp_ie_outer_header_creation *ohc)
 {
-	const struct osmo_pfcp_ie_outer_header_creation *ohc = encode_from;
 	struct osmo_strbuf sb = { .buf = buf, .len = buflen };
 	OSMO_STRBUF_APPEND(sb, osmo_pfcp_bits_to_str_buf, ohc->desc_bits, osmo_pfcp_outer_header_creation_strs);
 	if (ohc->teid_present)
@@ -877,6 +877,16 @@ int osmo_pfcp_enc_to_str_outer_header_creation(char *buf, size_t buflen, const v
 	return sb.chars_needed;
 }
 
+char *osmo_pfcp_ie_outer_header_creation_to_str_c(void *ctx, const struct osmo_pfcp_ie_outer_header_creation *ohc)
+{
+	OSMO_NAME_C_IMPL(ctx, 128, "ERROR", osmo_pfcp_ie_outer_header_creation_to_str_buf, ohc)
+}
+
+int osmo_pfcp_enc_to_str_outer_header_creation(char *buf, size_t buflen, const void *encode_from)
+{
+	return osmo_pfcp_ie_outer_header_creation_to_str_buf(buf, buflen, encode_from);
+}
+
 int osmo_pfcp_dec_activate_predefined_rules(void *decoded_struct, void *decode_to, const struct osmo_gtlv_load *tlv)
 {
 	struct osmo_pfcp_ie_activate_predefined_rules *activate_predefined_rules = decode_to;