core: pta: socket: fix direct user memory access

Replaces direct user memory accesses in the socket PTA with
copy_to_user() and copy_from_user(). This avoids PAN errors when PAN is
active.

Fixes: 4

core: pta: socket: fix direct user memory access

Replaces direct user memory accesses in the socket PTA with
copy_to_user() and copy_from_user(). This avoids PAN errors when PAN is
active.

Fixes: 4e154320e47c ("core: Apply finer-grained PAN")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: Fix warnings in core/tee/socket.c

Fixes -Wdeclaration-after-statement warnings in core/tee/socket.c:
core/tee/socket.c: In function ‘socket_open’:
core/tee/socket.c:44:2: error: ISO C90 forbid

core: Fix warnings in core/tee/socket.c

Fixes -Wdeclaration-after-statement warnings in core/tee/socket.c:
core/tee/socket.c: In function ‘socket_open’:
core/tee/socket.c:44:2: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
struct thread_param tpm[4] = {
^~~~~~
core/tee/socket.c: In function ‘socket_close’:
core/tee/socket.c:76:2: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
struct thread_param tpm = THREAD_PARAM_VALUE(IN, OPTEE_RPC_SOCKET_CLOSE,
^~~~~~
core/tee/socket.c: In function ‘socket_send’:
core/tee/socket.c:108:2: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
struct thread_param tpm[3] = {
^~~~~~
core/tee/socket.c: In function ‘socket_recv’:
core/tee/socket.c:147:2: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
struct thread_param tpm[3] = {
^~~~~~
core/tee/socket.c: In function ‘socket_ioctl’:
core/tee/socket.c:190:2: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
struct thread_param tpm[3] = {
^~~~~~

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pta: socket: enable TA to query recv out buffer

Propagate out size for socket recv event when it's larger than the
supplied in size. Also enable passing a NULL buffer while querying the
size o

core: pta: socket: enable TA to query recv out buffer

Propagate out size for socket recv event when it's larger than the
supplied in size. Also enable passing a NULL buffer while querying the
size of the buffer.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jerome Forissier <jerome@forissier.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add generic struct ts_session

As a step in making room for Secure Partitions (SPs) running at S-EL0
add a Trusted Service (TS) abstraction. Both TAs and SPs is a TS.

Adds the generic struct t

core: add generic struct ts_session

As a step in making room for Secure Partitions (SPs) running at S-EL0
add a Trusted Service (TS) abstraction. Both TAs and SPs is a TS.

Adds the generic struct ts_session. All future sessions structs
(currently only struct tee_ta_session exists) should add this struct to
allow generic session operations.

With this struct comes new functions replacing previous struct
tee_ta_session oriented functions. The following functions are replaced
as:
tee_ta_get_current_session() -> ts_get_current_session()
tee_ta_push_current_session() -> ts_push_current_session()
tee_ta_pop_current_session() -> ts_pop_current_session()
tee_ta_get_calling_session() -> ts_get_calling_session()

ts_get_current_session() is changed compared to its predecessor to
panic() in case of failure to return a valid pointer.

A new function ts_get_current_session_may_fail() is added to handle an
eventual case where a return NULL session may be handled.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add user parameter thread_rpc_shm_cache_alloc()

Adds a user parameter to thread_rpc_shm_cache_alloc() to make sure that
different callers of thread_rpc_shm_cache_alloc() doesn't interfere with

core: add user parameter thread_rpc_shm_cache_alloc()

Adds a user parameter to thread_rpc_shm_cache_alloc() to make sure that
different callers of thread_rpc_shm_cache_alloc() doesn't interfere with
each other. The FS allocation could perhaps be intertwined with I2C
allocations if crypto operations are done over I2C.

Fixes: 9bee8f2a5af7 ("core: add generic rpc shared memory buffer caching")
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add generic rpc shared memory buffer caching

Replaces tee_fs_rpc_cache_alloc() with thread_rpc_shm_alloc() which also
takes a shared memory type as argument. This allows allocating an kernel
p

core: add generic rpc shared memory buffer caching

Replaces tee_fs_rpc_cache_alloc() with thread_rpc_shm_alloc() which also
takes a shared memory type as argument. This allows allocating an kernel
private RPC buffer when needed.

Acked-by: Jerome Forissier <jerome@forissier.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: move sockets PTA to core/tee

The sockets pseudo-TA is architecture-independent. Move it to
core/tee and drop the pta_ prefix which is not really useful.

Signed-off-by: Jerome Forissier <jerom

core: move sockets PTA to core/tee

The sockets pseudo-TA is architecture-independent. Move it to
core/tee and drop the pta_ prefix which is not really useful.

Signed-off-by: Jerome Forissier <jerome@forissier.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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