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-rw-r--r--meta-oe/recipes-support/libusbgx/libusbgx/0001-fix-stack-buffer-overflow-in-usbg_f_foo_attr_val-pro.patch796
1 files changed, 796 insertions, 0 deletions
diff --git a/meta-oe/recipes-support/libusbgx/libusbgx/0001-fix-stack-buffer-overflow-in-usbg_f_foo_attr_val-pro.patch b/meta-oe/recipes-support/libusbgx/libusbgx/0001-fix-stack-buffer-overflow-in-usbg_f_foo_attr_val-pro.patch
new file mode 100644
index 0000000000..24a2760d11
--- /dev/null
+++ b/meta-oe/recipes-support/libusbgx/libusbgx/0001-fix-stack-buffer-overflow-in-usbg_f_foo_attr_val-pro.patch
@@ -0,0 +1,796 @@
+From 421b366cafdf954b7e1cd2bbb78b55e04d73c082 Mon Sep 17 00:00:00 2001
+From: Wlodzimierz Lipert <wlodzimierz.lipert@gmail.com>
+Date: Mon, 28 Nov 2022 08:29:54 +0100
+Subject: [PATCH] fix: stack-buffer-overflow in usbg_f_foo_attr_val processing.
+ Changed ABI version from 2 to 3.
+
+Upstream-Status: Submitted [https://github.com/linux-usb-gadgets/libusbgx/pull/72]
+
+Signed-off-by: Wlodzimierz Lipert <wlodzimierz.lipert@gmail.com>
+Signed-off-by: Ming Liu <liu.ming50@gmail.com>
+---
+ include/usbg/function/hid.h | 28 ++++++++++++----------------
+ include/usbg/function/midi.h | 35 +++++++++++++----------------------
+ include/usbg/function/ms.h | 30 +++++++++++-------------------
+ include/usbg/function/net.h | 34 ++++++++++++++--------------------
+ include/usbg/function/uac2.h | 29 +++++++++++++----------------
+ include/usbg/usbg_internal.h | 10 +++++-----
+ src/Makefile.am | 2 +-
+ src/function/ether.c | 10 +++++-----
+ src/function/hid.c | 12 ++++++------
+ src/function/midi.c | 10 +++++-----
+ src/function/ms.c | 10 +++++-----
+ src/function/uac2.c | 10 +++++-----
+ src/function/uvc.c | 10 +++++-----
+ src/usbg_common.c | 2 +-
+ 14 files changed, 101 insertions(+), 131 deletions(-)
+
+diff --git a/include/usbg/function/hid.h b/include/usbg/function/hid.h
+index 3463140..3b3907b 100644
+--- a/include/usbg/function/hid.h
++++ b/include/usbg/function/hid.h
+@@ -56,11 +56,6 @@ union usbg_f_hid_attr_val {
+ unsigned int subclass;
+ };
+
+-#define USBG_F_HID_UINT_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_hid_attr_val, protocol, WHAT)
+-
+-#define USBG_F_HID_RDESC_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_hid_attr_val, report_desc, WHAT)
+ /**
+ * @brief Cast from generic function to hid function
+ * @param[in] f function to be converted to hid funciton.
+@@ -137,7 +132,7 @@ int usbg_f_hid_get_attr_val(usbg_f_hid *hf, enum usbg_f_hid_attr attr,
+ * @return 0 on success usbg_error if error occurred.
+ */
+ int usbg_f_hid_set_attr_val(usbg_f_hid *hf, enum usbg_f_hid_attr attr,
+- union usbg_f_hid_attr_val val);
++ const union usbg_f_hid_attr_val *val);
+
+ /**
+ * @brief Get the minor and major of corresponding character device
+@@ -173,8 +168,9 @@ static inline int usbg_f_hid_get_protocol(usbg_f_hid *hf,
+ static inline int usbg_f_hid_set_protocol(usbg_f_hid *hf,
+ unsigned int protocol)
+ {
+- return usbg_f_hid_set_attr_val(hf, USBG_F_HID_PROTOCOL,
+- USBG_F_HID_UINT_TO_ATTR_VAL(protocol));
++
++ union usbg_f_hid_attr_val val = {.protocol = protocol};
++ return usbg_f_hid_set_attr_val(hf, USBG_F_HID_PROTOCOL, &val);
+ }
+
+ /**
+@@ -199,8 +195,8 @@ static inline int usbg_f_hid_get_report_desc(usbg_f_hid *hf,
+ static inline int usbg_f_hid_set_report_desc(usbg_f_hid *hf,
+ struct usbg_f_hid_report_desc report_desc)
+ {
+- return usbg_f_hid_set_attr_val(hf, USBG_F_HID_REPORT_DESC,
+- USBG_F_HID_RDESC_TO_ATTR_VAL(report_desc));
++ union usbg_f_hid_attr_val val = {.report_desc = report_desc};
++ return usbg_f_hid_set_attr_val(hf, USBG_F_HID_REPORT_DESC, &val);
+ }
+
+ /**
+@@ -242,8 +238,8 @@ static inline int usbg_f_hid_set_report_desc_raw(usbg_f_hid *hf,
+ .len = len,
+ };
+
+- return usbg_f_hid_set_attr_val(hf, USBG_F_HID_REPORT_DESC,
+- USBG_F_HID_RDESC_TO_ATTR_VAL(report_desc));
++ union usbg_f_hid_attr_val val = {.report_desc = report_desc};
++ return usbg_f_hid_set_attr_val(hf, USBG_F_HID_REPORT_DESC, &val);
+ }
+
+ /**
+@@ -268,8 +264,8 @@ static inline int usbg_f_hid_get_report_length(usbg_f_hid *hf,
+ static inline int usbg_f_hid_set_report_length(usbg_f_hid *hf,
+ unsigned int report_length)
+ {
+- return usbg_f_hid_set_attr_val(hf, USBG_F_HID_REPORT_LENGTH,
+- USBG_F_HID_UINT_TO_ATTR_VAL(report_length));
++ union usbg_f_hid_attr_val val = {.report_length = report_length};
++ return usbg_f_hid_set_attr_val(hf, USBG_F_HID_REPORT_LENGTH, &val);
+ }
+
+ /**
+@@ -294,8 +290,8 @@ static inline int usbg_f_hid_get_subclass(usbg_f_hid *hf,
+ static inline int usbg_f_hid_set_subclass(usbg_f_hid *hf,
+ unsigned int subclass)
+ {
+- return usbg_f_hid_set_attr_val(hf, USBG_F_HID_SUBCLASS,
+- USBG_F_HID_UINT_TO_ATTR_VAL(subclass));
++ union usbg_f_hid_attr_val val = {.subclass = subclass};
++ return usbg_f_hid_set_attr_val(hf, USBG_F_HID_SUBCLASS, &val);
+ }
+
+ #ifdef __cplusplus
+diff --git a/include/usbg/function/midi.h b/include/usbg/function/midi.h
+index 39df047..b9d9d4f 100644
+--- a/include/usbg/function/midi.h
++++ b/include/usbg/function/midi.h
+@@ -53,15 +53,6 @@ union usbg_f_midi_attr_val {
+ unsigned int qlen;
+ };
+
+-#define USBG_F_MIDI_INT_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_midi_attr_val, index, WHAT)
+-
+-#define USBG_F_MIDI_UINT_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_midi_attr_val, qlen, WHAT)
+-
+-#define USBG_F_MIDI_CCHAR_PTR_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_midi_attr_val, id, WHAT)
+-
+ /**
+ * @brief Cast from generic function to midi function
+ * @param[in] f function to be converted to midi funciton.
+@@ -126,7 +117,7 @@ int usbg_f_midi_get_attr_val(usbg_f_midi *mf, enum usbg_f_midi_attr attr,
+ * @return 0 on success usbg_error if error occurred.
+ */
+ int usbg_f_midi_set_attr_val(usbg_f_midi *mf, enum usbg_f_midi_attr attr,
+- union usbg_f_midi_attr_val val);
++ const union usbg_f_midi_attr_val *val);
+
+ /**
+ * @brief Get the index value of MIDI adapter
+@@ -148,8 +139,8 @@ static inline int usbg_f_midi_get_index(usbg_f_midi *mf, int *index)
+ */
+ static inline int usbg_f_midi_set_index(usbg_f_midi *mf, int index)
+ {
+- return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_INDEX,
+- USBG_F_MIDI_INT_TO_ATTR_VAL(index));
++ union usbg_f_midi_attr_val val = {.index = index};
++ return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_INDEX, &val);
+ }
+
+ /**
+@@ -188,8 +179,8 @@ int usbg_f_midi_get_id_s(usbg_f_midi *mf, char *buf, int len);
+ */
+ static inline int usbg_f_midi_set_id(usbg_f_midi *mf, const char *id)
+ {
+- return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_ID,
+- USBG_F_MIDI_CCHAR_PTR_TO_ATTR_VAL(id));
++ union usbg_f_midi_attr_val val = {.id = id};
++ return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_ID, &val);
+ }
+
+ /**
+@@ -212,8 +203,8 @@ static inline int usbg_f_midi_get_in_ports(usbg_f_midi *mf, unsigned *in_ports)
+ */
+ static inline int usbg_f_midi_set_in_ports(usbg_f_midi *mf, unsigned in_ports)
+ {
+- return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_IN_PORTS,
+- USBG_F_MIDI_UINT_TO_ATTR_VAL(in_ports));
++ union usbg_f_midi_attr_val val = {.in_ports = in_ports};
++ return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_IN_PORTS, &val);
+ }
+
+ /**
+@@ -236,8 +227,8 @@ static inline int usbg_f_midi_get_out_ports(usbg_f_midi *mf, unsigned *out_ports
+ */
+ static inline int usbg_f_midi_set_out_ports(usbg_f_midi *mf, unsigned out_ports)
+ {
+- return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_OUT_PORTS,
+- USBG_F_MIDI_UINT_TO_ATTR_VAL(out_ports));
++ union usbg_f_midi_attr_val val = {.out_ports = out_ports};
++ return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_OUT_PORTS, &val);
+ }
+
+ /**
+@@ -264,8 +255,8 @@ static inline int usbg_f_midi_get_buflen(usbg_f_midi *mf, int *buflen)
+ */
+ static inline int usbg_f_midi_set_buflen(usbg_f_midi *mf, unsigned buflen)
+ {
+- return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_BUFLEN,
+- USBG_F_MIDI_UINT_TO_ATTR_VAL(buflen));
++ union usbg_f_midi_attr_val val = {.buflen = buflen};
++ return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_BUFLEN, &val);
+ }
+
+ /**
+@@ -288,8 +279,8 @@ static inline int usbg_f_midi_get_qlen(usbg_f_midi *mf, unsigned *qlen)
+ */
+ static inline int usbg_f_midi_set_qlen(usbg_f_midi *mf, unsigned qlen)
+ {
+- return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_QLEN,
+- USBG_F_MIDI_UINT_TO_ATTR_VAL(qlen));
++ union usbg_f_midi_attr_val val = {.qlen = qlen};
++ return usbg_f_midi_set_attr_val(mf, USBG_F_MIDI_QLEN, &val);
+ }
+
+ #ifdef __cplusplus
+diff --git a/include/usbg/function/ms.h b/include/usbg/function/ms.h
+index 780464c..f52eb78 100644
+--- a/include/usbg/function/ms.h
++++ b/include/usbg/function/ms.h
+@@ -56,14 +56,6 @@ union usbg_f_ms_lun_attr_val {
+ const char *file;
+ };
+
+-#define USBG_F_MS_LUN_BOOL_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_ms_lun_attr_val, cdrom, WHAT)
+-
+-#define USBG_F_MS_LUN_CCHAR_PTR_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_ms_lun_attr_val, file, WHAT)
+-
+-
+-
+ /**
+ * @brief Cast from generic function to mass storage function
+ * @param[in] f function to be converted to ms funciton.
+@@ -157,7 +149,7 @@ int usbg_f_ms_get_lun_attr_val(usbg_f_ms *mf, int lun_id,
+ */
+ int usbg_f_ms_set_lun_attr_val(usbg_f_ms *mf, int lun_id,
+ enum usbg_f_ms_lun_attr lattr,
+- const union usbg_f_ms_lun_attr_val val);
++ const union usbg_f_ms_lun_attr_val *val);
+
+ /**
+ * @brief Get the value which determines if lun is visible as a cdrom
+@@ -183,8 +175,8 @@ static inline int usbg_f_ms_get_lun_cdrom(usbg_f_ms *mf, int lun_id,
+ static inline int usbg_f_ms_set_lun_cdrom(usbg_f_ms *mf, int lun_id,
+ bool cdrom)
+ {
+- return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_CDROM,
+- USBG_F_MS_LUN_BOOL_TO_ATTR_VAL(cdrom));
++ union usbg_f_ms_lun_attr_val val = {.cdrom = cdrom};
++ return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_CDROM, &val);
+ }
+
+ /**
+@@ -209,8 +201,8 @@ static inline int usbg_f_ms_get_lun_ro(usbg_f_ms *mf, int lun_id, bool *ro)
+ */
+ static inline int usbg_f_ms_set_lun_ro(usbg_f_ms *mf, int lun_id, bool ro)
+ {
+- return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_RO,
+- USBG_F_MS_LUN_BOOL_TO_ATTR_VAL(ro));
++ union usbg_f_ms_lun_attr_val val = {.ro = ro};
++ return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_RO, &val);
+ }
+
+ /**
+@@ -239,8 +231,8 @@ static inline int usbg_f_ms_get_lun_nofua(usbg_f_ms *mf, int lun_id,
+ static inline int usbg_f_ms_set_lun_nofua(usbg_f_ms *mf, int lun_id,
+ bool nofua)
+ {
+- return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_NOFUA,
+- USBG_F_MS_LUN_BOOL_TO_ATTR_VAL(nofua));
++ union usbg_f_ms_lun_attr_val val = {.nofua = nofua};
++ return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_NOFUA, &val);
+ }
+
+ /**
+@@ -267,8 +259,8 @@ static inline int usbg_f_ms_get_lun_removable(usbg_f_ms *mf, int lun_id,
+ static inline int usbg_f_ms_set_lun_removable(usbg_f_ms *mf, int lun_id,
+ bool removable)
+ {
+- return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_REMOVABLE,
+- USBG_F_MS_LUN_BOOL_TO_ATTR_VAL(removable));
++ union usbg_f_ms_lun_attr_val val = {.removable = removable};
++ return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_REMOVABLE, &val);
+ }
+
+ /**
+@@ -313,8 +305,8 @@ int usbg_f_ms_get_lun_file_s(usbg_f_ms *mf, int lun_id,
+ static inline int usbg_f_ms_set_lun_file(usbg_f_ms *mf, int lun_id,
+ const char *file)
+ {
+- return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_FILE,
+- USBG_F_MS_LUN_CCHAR_PTR_TO_ATTR_VAL(file));
++ union usbg_f_ms_lun_attr_val val = {.file = file};
++ return usbg_f_ms_set_lun_attr_val(mf, lun_id, USBG_F_MS_LUN_FILE, &val);
+ }
+
+ /**
+diff --git a/include/usbg/function/net.h b/include/usbg/function/net.h
+index b0409f1..06cee30 100644
+--- a/include/usbg/function/net.h
++++ b/include/usbg/function/net.h
+@@ -56,12 +56,6 @@ union usbg_f_net_attr_val {
+ unsigned int protocol;
+ };
+
+-#define USBG_F_NET_ETHER_ADDR_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_net_attr_val, dev_addr, WHAT)
+-
+-#define USBG_F_NET_INT_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_net_attr_val, qmult, WHAT)
+-
+ /**
+ * @brief Cast from generic function to net function
+ * @param[in] f function to be converted to net funciton.
+@@ -125,7 +119,7 @@ int usbg_f_net_get_attr_val(usbg_f_net *nf, enum usbg_f_net_attr attr,
+ * @return 0 on success usbg_error if error occurred.
+ */
+ int usbg_f_net_set_attr_val(usbg_f_net *nf, enum usbg_f_net_attr attr,
+- const union usbg_f_net_attr_val val);
++ const union usbg_f_net_attr_val *val);
+
+ /**
+ * @brief Get the value of device side MAC address
+@@ -136,7 +130,7 @@ int usbg_f_net_set_attr_val(usbg_f_net *nf, enum usbg_f_net_attr attr,
+ static inline int usbg_f_net_get_dev_addr(usbg_f_net *nf,
+ struct ether_addr *addr)
+ {
+- union usbg_f_net_attr_val val = { .dev_addr = *addr, };
++ union usbg_f_net_attr_val val = {.dev_addr = *addr};
+ return usbg_f_net_get_attr_val(nf, USBG_F_NET_DEV_ADDR, &val);
+ }
+
+@@ -149,8 +143,8 @@ static inline int usbg_f_net_get_dev_addr(usbg_f_net *nf,
+ static inline int usbg_f_net_set_dev_addr(usbg_f_net *nf,
+ const struct ether_addr *addr)
+ {
+- return usbg_f_net_set_attr_val(nf, USBG_F_NET_DEV_ADDR,
+- USBG_F_NET_ETHER_ADDR_TO_ATTR_VAL(*addr));
++ union usbg_f_net_attr_val val = {.dev_addr = *addr};
++ return usbg_f_net_set_attr_val(nf, USBG_F_NET_DEV_ADDR, &val);
+ }
+
+ /**
+@@ -175,8 +169,8 @@ static inline int usbg_f_net_get_host_addr(usbg_f_net *nf,
+ static inline int usbg_f_net_set_host_addr(usbg_f_net *nf,
+ const struct ether_addr *addr)
+ {
+- return usbg_f_net_set_attr_val(nf, USBG_F_NET_HOST_ADDR,
+- USBG_F_NET_ETHER_ADDR_TO_ATTR_VAL(*addr));
++ union usbg_f_net_attr_val val = {.host_addr = *addr};
++ return usbg_f_net_set_attr_val(nf, USBG_F_NET_HOST_ADDR, &val);
+ }
+
+ /**
+@@ -226,8 +220,8 @@ static inline int usbg_f_net_get_qmult(usbg_f_net *nf, int *qmult)
+ */
+ static inline int usbg_f_net_set_qmult(usbg_f_net *nf, int qmult)
+ {
+- return usbg_f_net_set_attr_val(nf, USBG_F_NET_QMULT,
+- USBG_F_NET_INT_TO_ATTR_VAL(qmult));
++ union usbg_f_net_attr_val val = {.qmult = qmult};
++ return usbg_f_net_set_attr_val(nf, USBG_F_NET_QMULT, &val);
+ }
+
+ /**
+@@ -250,8 +244,8 @@ static inline int usbg_f_net_get_class(usbg_f_net *nf, unsigned int *class_)
+ */
+ static inline int usbg_f_net_set_class(usbg_f_net *nf, unsigned int class_)
+ {
+- return usbg_f_net_set_attr_val(nf, USBG_F_NET_CLASS,
+- USBG_F_NET_INT_TO_ATTR_VAL(class_));
++ union usbg_f_net_attr_val val = {.class_ = class_};
++ return usbg_f_net_set_attr_val(nf, USBG_F_NET_CLASS, &val);
+ }
+
+ /**
+@@ -274,8 +268,8 @@ static inline int usbg_f_net_get_subclass(usbg_f_net *nf, int *subclass)
+ */
+ static inline int usbg_f_net_set_subclass(usbg_f_net *nf, unsigned int subclass)
+ {
+- return usbg_f_net_set_attr_val(nf, USBG_F_NET_SUBCLASS,
+- USBG_F_NET_INT_TO_ATTR_VAL(subclass));
++ union usbg_f_net_attr_val val = {.subclass = subclass};
++ return usbg_f_net_set_attr_val(nf, USBG_F_NET_SUBCLASS, &val);
+ }
+
+ /**
+@@ -298,8 +292,8 @@ static inline int usbg_f_net_get_protocol(usbg_f_net *nf, int *protocol)
+ */
+ static inline int usbg_f_net_set_protocol(usbg_f_net *nf, unsigned int protocol)
+ {
+- return usbg_f_net_set_attr_val(nf, USBG_F_NET_PROTOCOL,
+- USBG_F_NET_INT_TO_ATTR_VAL(protocol));
++ union usbg_f_net_attr_val val = {.protocol = protocol};
++ return usbg_f_net_set_attr_val(nf, USBG_F_NET_PROTOCOL, &val);
+ }
+
+ #ifdef __cplusplus
+diff --git a/include/usbg/function/uac2.h b/include/usbg/function/uac2.h
+index 6fc4d24..80918ef 100644
+--- a/include/usbg/function/uac2.h
++++ b/include/usbg/function/uac2.h
+@@ -110,9 +110,6 @@ union usbg_f_uac2_attr_val {
+ const char * function_name;
+ };
+
+-#define USBG_F_UAC2_INT_TO_ATTR_VAL(WHAT) \
+- USBG_TO_UNION(usbg_f_uac2_attr_val, c_chmask, WHAT)
+-
+ /**
+ * @brief Cast from generic function to uac2 function
+ * @param[in] f function to be converted to uac2 funciton.
+@@ -172,7 +169,7 @@ int usbg_f_uac2_get_attr_val(usbg_f_uac2 *af, enum usbg_f_uac2_attr attr,
+ * @return 0 on success usbg_error if error occurred.
+ */
+ int usbg_f_uac2_set_attr_val(usbg_f_uac2 *af, enum usbg_f_uac2_attr attr,
+- union usbg_f_uac2_attr_val val);
++ const union usbg_f_uac2_attr_val *val);
+
+ /**
+ * @brief Get the capture channel mask of UAC2 adapter
+@@ -194,8 +191,8 @@ static inline int usbg_f_uac2_get_c_chmask(usbg_f_uac2 *af, int *c_chmask)
+ */
+ static inline int usbg_f_uac2_set_c_chmask(usbg_f_uac2 *af, int c_chmask)
+ {
+- return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_C_CHMASK,
+- USBG_F_UAC2_INT_TO_ATTR_VAL(c_chmask));
++ union usbg_f_uac2_attr_val val = {.c_chmask = c_chmask};
++ return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_C_CHMASK, &val);
+ }
+
+ /**
+@@ -218,8 +215,8 @@ static inline int usbg_f_uac2_get_c_srate(usbg_f_uac2 *af, int *c_srate)
+ */
+ static inline int usbg_f_uac2_set_c_srate(usbg_f_uac2 *af, int c_srate)
+ {
+- return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_C_SRATE,
+- USBG_F_UAC2_INT_TO_ATTR_VAL(c_srate));
++ union usbg_f_uac2_attr_val val = {.c_srate = c_srate};
++ return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_C_SRATE, &val);
+ }
+
+ /**
+@@ -242,8 +239,8 @@ static inline int usbg_f_uac2_get_c_ssize(usbg_f_uac2 *af, int *c_ssize)
+ */
+ static inline int usbg_f_uac2_set_c_ssize(usbg_f_uac2 *af, int c_ssize)
+ {
+- return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_C_SSIZE,
+- USBG_F_UAC2_INT_TO_ATTR_VAL(c_ssize));
++ union usbg_f_uac2_attr_val val = {.c_ssize = c_ssize};
++ return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_C_SSIZE, &val);
+ }
+
+ /**
+@@ -266,8 +263,8 @@ static inline int usbg_f_uac2_get_p_chmask(usbg_f_uac2 *af, int *p_chmask)
+ */
+ static inline int usbg_f_uac2_set_p_chmask(usbg_f_uac2 *af, int p_chmask)
+ {
+- return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_P_CHMASK,
+- USBG_F_UAC2_INT_TO_ATTR_VAL(p_chmask));
++ union usbg_f_uac2_attr_val val = {.p_chmask = p_chmask};
++ return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_P_CHMASK, &val);
+ }
+
+ /**
+@@ -290,8 +287,8 @@ static inline int usbg_f_uac2_get_p_srate(usbg_f_uac2 *af, int *p_srate)
+ */
+ static inline int usbg_f_uac2_set_p_srate(usbg_f_uac2 *af, int p_srate)
+ {
+- return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_P_SRATE,
+- USBG_F_UAC2_INT_TO_ATTR_VAL(p_srate));
++ union usbg_f_uac2_attr_val val = {.p_srate = p_srate};
++ return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_P_SRATE, &val);
+ }
+
+ /**
+@@ -314,8 +311,8 @@ static inline int usbg_f_uac2_get_p_ssize(usbg_f_uac2 *af, int *p_ssize)
+ */
+ static inline int usbg_f_uac2_set_p_ssize(usbg_f_uac2 *af, int p_ssize)
+ {
+- return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_P_SSIZE,
+- USBG_F_UAC2_INT_TO_ATTR_VAL(p_ssize));
++ union usbg_f_uac2_attr_val val = {.p_ssize = p_ssize};
++ return usbg_f_uac2_set_attr_val(af, USBG_F_UAC2_P_SSIZE, &val);
+ }
+
+ #ifdef __cplusplus
+diff --git a/include/usbg/usbg_internal.h b/include/usbg/usbg_internal.h
+index 1d8dfe2..d6a3e3a 100644
+--- a/include/usbg/usbg_internal.h
++++ b/include/usbg/usbg_internal.h
+@@ -322,7 +322,7 @@ void usbg_cleanup_function(struct usbg_function *f);
+ }
+
+ typedef int (*usbg_attr_get_func)(const char *, const char *, const char *, void *);
+-typedef int (*usbg_attr_set_func)(const char *, const char *, const char *, void *);
++typedef int (*usbg_attr_set_func)(const char *, const char *, const char *, const void *);
+
+ static inline int usbg_get_dec(const char *path, const char *name,
+ const char *attr, void *val)
+@@ -331,7 +331,7 @@ static inline int usbg_get_dec(const char *path, const char *name,
+ }
+
+ static inline int usbg_set_dec(const char *path, const char *name,
+- const char *attr, void *val)
++ const char *attr, const void *val)
+ {
+ return usbg_write_dec(path, name, attr, *((int *)val));
+ }
+@@ -343,7 +343,7 @@ static inline int usbg_get_bool(const char *path, const char *name,
+ }
+
+ static inline int usbg_set_bool(const char *path, const char *name,
+- const char *attr, void *val)
++ const char *attr, const void *val)
+ {
+ return usbg_write_bool(path, name, attr, *((bool *)val));
+ }
+@@ -355,7 +355,7 @@ static inline int usbg_get_string(const char *path, const char *name,
+ }
+
+ static inline int usbg_set_string(const char *path, const char *name,
+- const char *attr, void *val)
++ const char *attr, const void *val)
+ {
+ return usbg_write_string(path, name, attr, *(char **)val);
+ }
+@@ -364,7 +364,7 @@ int usbg_get_ether_addr(const char *path, const char *name, const char *attr,
+ void *val);
+
+ int usbg_set_ether_addr(const char *path, const char *name, const char *attr,
+- void *val);
++ const void *val);
+
+ int usbg_get_dev(const char *path, const char *name, const char *attr,
+ void *val);
+diff --git a/src/Makefile.am b/src/Makefile.am
+index 634209f..ac97bc8 100644
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -7,6 +7,6 @@ else
+ libusbgx_la_SOURCES += usbg_schemes_none.c
+ endif
+ libusbgx_la_LDFLAGS = $(LIBCONFIG_LIBS)
+-libusbgx_la_LDFLAGS += -version-info 2:0:0
++libusbgx_la_LDFLAGS += -version-info 3:0:0
+ libusbgx_la_CFLAGS = $(LIBCONFIG_CFLAGS)
+ AM_CPPFLAGS=-I$(top_srcdir)/include/ -I$(top_builddir)/include/usbg
+diff --git a/src/function/ether.c b/src/function/ether.c
+index a9eaf33..a1d20f1 100644
+--- a/src/function/ether.c
++++ b/src/function/ether.c
+@@ -124,7 +124,7 @@ static int ether_libconfig_import(struct usbg_function *f,
+ if (ret < 0)
+ break;
+
+- ret = usbg_f_net_set_attr_val(nf, i, val);
++ ret = usbg_f_net_set_attr_val(nf, i, &val);
+ if (ret)
+ break;
+ }
+@@ -258,8 +258,8 @@ int usbg_f_net_set_attrs(usbg_f_net *nf,
+ continue;
+
+ ret = usbg_f_net_set_attr_val(nf, i,
+- *(union usbg_f_net_attr_val *)
+- ((char *)attrs
++ (const union usbg_f_net_attr_val *)
++ ((const char *)attrs
+ + net_attr[i].offset));
+ if (ret)
+ break;
+@@ -277,12 +277,12 @@ int usbg_f_net_get_attr_val(usbg_f_net *nf, enum usbg_f_net_attr attr,
+ }
+
+ int usbg_f_net_set_attr_val(usbg_f_net *nf, enum usbg_f_net_attr attr,
+- union usbg_f_net_attr_val val)
++ const union usbg_f_net_attr_val *val)
+ {
+ return net_attr[attr].ro ?
+ USBG_ERROR_INVALID_PARAM :
+ net_attr[attr].set(nf->func.path, nf->func.name,
+- net_attr[attr].name, &val);
++ net_attr[attr].name, val);
+ }
+
+ int usbg_f_net_get_ifname_s(usbg_f_net *nf, char *buf, int len)
+diff --git a/src/function/hid.c b/src/function/hid.c
+index 4d075cf..895c2c6 100644
+--- a/src/function/hid.c
++++ b/src/function/hid.c
+@@ -69,9 +69,9 @@ static int hid_get_report(const char *path, const char *name, const char *attr,
+ }
+
+ static int hid_set_report(const char *path, const char *name, const char *attr,
+- void *val)
++ const void *val)
+ {
+- struct usbg_f_hid_report_desc *report_desc = val;
++ const struct usbg_f_hid_report_desc *report_desc = val;
+ char *buf = report_desc->desc;
+ int len = report_desc->len;
+ int ret;
+@@ -239,7 +239,7 @@ static int hid_libconfig_import(struct usbg_function *f,
+ if (ret < 0)
+ break;
+
+- ret = usbg_f_hid_set_attr_val(hf, i, val);
++ ret = usbg_f_hid_set_attr_val(hf, i, &val);
+ if (ret)
+ break;
+ }
+@@ -327,7 +327,7 @@ int usbg_f_hid_set_attrs(usbg_f_hid *hf,
+ continue;
+
+ ret = usbg_f_hid_set_attr_val(hf, i,
+- *(union usbg_f_hid_attr_val *)
++ (union usbg_f_hid_attr_val *)
+ ((char *)attrs
+ + hid_attr[i].offset));
+ if (ret)
+@@ -346,11 +346,11 @@ int usbg_f_hid_get_attr_val(usbg_f_hid *hf, enum usbg_f_hid_attr attr,
+ }
+
+ int usbg_f_hid_set_attr_val(usbg_f_hid *hf, enum usbg_f_hid_attr attr,
+- union usbg_f_hid_attr_val val)
++ const union usbg_f_hid_attr_val *val)
+ {
+ return hid_attr[attr].ro ?
+ USBG_ERROR_INVALID_PARAM :
+ hid_attr[attr].set(hf->func.path, hf->func.name,
+- hid_attr[attr].name, &val);
++ hid_attr[attr].name, val);
+ }
+
+diff --git a/src/function/midi.c b/src/function/midi.c
+index 1cedb97..2318b49 100644
+--- a/src/function/midi.c
++++ b/src/function/midi.c
+@@ -100,7 +100,7 @@ static int midi_libconfig_import(struct usbg_function *f,
+ if (ret < 0)
+ break;
+
+- ret = usbg_f_midi_set_attr_val(mf, i, val);
++ ret = usbg_f_midi_set_attr_val(mf, i, &val);
+ if (ret)
+ break;
+ }
+@@ -185,8 +185,8 @@ int usbg_f_midi_set_attrs(usbg_f_midi *mf,
+
+ for (i = USBG_F_MIDI_ATTR_MIN; i < USBG_F_MIDI_ATTR_MAX; ++i) {
+ ret = usbg_f_midi_set_attr_val(mf, i,
+- *(union usbg_f_midi_attr_val *)
+- ((char *)attrs
++ (const union usbg_f_midi_attr_val *)
++ ((const char *)attrs
+ + midi_attr[i].offset));
+ if (ret)
+ break;
+@@ -204,10 +204,10 @@ int usbg_f_midi_get_attr_val(usbg_f_midi *mf, enum usbg_f_midi_attr attr,
+ }
+
+ int usbg_f_midi_set_attr_val(usbg_f_midi *mf, enum usbg_f_midi_attr attr,
+- union usbg_f_midi_attr_val val)
++ const union usbg_f_midi_attr_val *val)
+ {
+ return midi_attr[attr].set(mf->func.path, mf->func.name,
+- midi_attr[attr].name, &val);
++ midi_attr[attr].name, val);
+ }
+
+ int usbg_f_midi_get_id_s(usbg_f_midi *mf, char *buf, int len)
+diff --git a/src/function/ms.c b/src/function/ms.c
+index 519b012..5cdd814 100644
+--- a/src/function/ms.c
++++ b/src/function/ms.c
+@@ -207,7 +207,7 @@ static int ms_import_lun_attrs(struct usbg_f_ms *mf, int lun_id,
+ if (ret < 0)
+ break;
+
+- ret = usbg_f_ms_set_lun_attr_val(mf, lun_id, i, val);
++ ret = usbg_f_ms_set_lun_attr_val(mf, lun_id, i, &val);
+ if (ret)
+ break;
+ }
+@@ -605,8 +605,8 @@ int usbg_f_ms_set_lun_attrs(usbg_f_ms *mf, int lun_id,
+
+ for (i = USBG_F_MS_LUN_ATTR_MIN; i < USBG_F_MS_LUN_ATTR_MAX; ++i) {
+ ret = usbg_f_ms_set_lun_attr_val(mf, lun_id, i,
+- *(union usbg_f_ms_lun_attr_val *)
+- ((char *)lattrs
++ (const union usbg_f_ms_lun_attr_val *)
++ ((const char *)lattrs
+ + ms_lun_attr[i].offset));
+ if (ret)
+ break;
+@@ -633,7 +633,7 @@ int usbg_f_ms_get_lun_attr_val(usbg_f_ms *mf, int lun_id,
+
+ int usbg_f_ms_set_lun_attr_val(usbg_f_ms *mf, int lun_id,
+ enum usbg_f_ms_lun_attr lattr,
+- union usbg_f_ms_lun_attr_val val)
++ const union usbg_f_ms_lun_attr_val *val)
+ {
+ char lpath[USBG_MAX_PATH_LENGTH];
+ int ret;
+@@ -644,7 +644,7 @@ int usbg_f_ms_set_lun_attr_val(usbg_f_ms *mf, int lun_id,
+ return USBG_ERROR_PATH_TOO_LONG;
+
+ return ms_lun_attr[lattr].set(lpath, "",
+- ms_lun_attr[lattr].name, &val);
++ ms_lun_attr[lattr].name, val);
+ }
+
+ int usbg_f_ms_get_lun_file_s(usbg_f_ms *mf, int lun_id,
+diff --git a/src/function/uac2.c b/src/function/uac2.c
+index 9ca8b66..fc06c1d 100644
+--- a/src/function/uac2.c
++++ b/src/function/uac2.c
+@@ -125,7 +125,7 @@ static int uac2_libconfig_import(struct usbg_function *f,
+ if (ret < 0)
+ break;
+
+- ret = usbg_f_uac2_set_attr_val(af, i, val);
++ ret = usbg_f_uac2_set_attr_val(af, i, &val);
+ if (ret)
+ break;
+ }
+@@ -210,8 +210,8 @@ int usbg_f_uac2_set_attrs(usbg_f_uac2 *af,
+
+ for (i = USBG_F_UAC2_ATTR_MIN; i < USBG_F_UAC2_ATTR_MAX; ++i) {
+ ret = usbg_f_uac2_set_attr_val(af, i,
+- *(union usbg_f_uac2_attr_val *)
+- ((char *)attrs
++ (const union usbg_f_uac2_attr_val *)
++ ((const char *)attrs
+ + uac2_attr[i].offset));
+ if (ret)
+ break;
+@@ -229,8 +229,8 @@ int usbg_f_uac2_get_attr_val(usbg_f_uac2 *af, enum usbg_f_uac2_attr attr,
+ }
+
+ int usbg_f_uac2_set_attr_val(usbg_f_uac2 *af, enum usbg_f_uac2_attr attr,
+- union usbg_f_uac2_attr_val val)
++ const union usbg_f_uac2_attr_val *val)
+ {
+ return uac2_attr[attr].set(af->func.path, af->func.name,
+- uac2_attr[attr].name, &val);
++ uac2_attr[attr].name, val);
+ }
+diff --git a/src/function/uvc.c b/src/function/uvc.c
+index f39594b..947b94e 100644
+--- a/src/function/uvc.c
++++ b/src/function/uvc.c
+@@ -303,7 +303,7 @@ int usbg_f_uvc_get_config_attr_val(usbg_f_uvc *uvcf, enum usbg_f_uvc_config_attr
+ }
+
+ int usbg_f_uvc_set_config_attr_val(usbg_f_uvc *uvcf, enum usbg_f_uvc_config_attr iattr,
+- union usbg_f_uvc_config_attr_val val)
++ const union usbg_f_uvc_config_attr_val *val)
+ {
+ char ipath[USBG_MAX_PATH_LENGTH];
+ int nmb;
+@@ -314,7 +314,7 @@ int usbg_f_uvc_set_config_attr_val(usbg_f_uvc *uvcf, enum usbg_f_uvc_config_attr
+ return USBG_ERROR_PATH_TOO_LONG;
+
+ return uvc_config_attr[iattr].set(ipath, "",
+- uvc_config_attr[iattr].name, &val);
++ uvc_config_attr[iattr].name, val);
+ }
+
+ int usbg_f_uvc_get_config_attrs(usbg_f_uvc *uvcf, struct usbg_f_uvc_config_attrs *iattrs)
+@@ -341,8 +341,8 @@ int usbg_f_uvc_set_config_attrs(usbg_f_uvc *uvcf, const struct usbg_f_uvc_config
+
+ for (i = USBG_F_UVC_FRAME_ATTR_MIN; i < USBG_F_UVC_FRAME_ATTR_MAX; ++i) {
+ ret = usbg_f_uvc_set_config_attr_val(uvcf, i,
+- *(union usbg_f_uvc_config_attr_val *)
+- ((char *)iattrs
++ (const union usbg_f_uvc_config_attr_val *)
++ ((const char *)iattrs
+ + uvc_config_attr[i].offset));
+ if (ret)
+ break;
+@@ -774,7 +774,7 @@ static int uvc_import_config(struct usbg_f_uvc *uvcf, config_setting_t *root)
+ if (ret < 0)
+ break;
+
+- ret = usbg_f_uvc_set_config_attr_val(uvcf, i, val);
++ ret = usbg_f_uvc_set_config_attr_val(uvcf, i, &val);
+ if (ret)
+ break;
+ }
+diff --git a/src/usbg_common.c b/src/usbg_common.c
+index 5f7f4e5..7234649 100644
+--- a/src/usbg_common.c
++++ b/src/usbg_common.c
+@@ -337,7 +337,7 @@ int usbg_get_ether_addr(const char *path, const char *name,
+ }
+
+ int usbg_set_ether_addr(const char *path, const char *name,
+- const char *attr, void *val)
++ const char *attr, const void *val)
+ {
+ char str_addr[USBG_MAX_STR_LENGTH];
+
+--
+2.42.0
+