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101b474217
At the moment you can define and set per-stream metadata at the client,
which will be string-substituted and if configured in the policy, set in
related outgoing protocol specific content like h1 headers.
This patch extends the metadata concept to also check incoming protocol-
specific content like h1 headers and where it matches the binding in the
streamtype's metadata entry, make it available to the client by name, via
a new lws_ss_get_metadata() api.
Currently warmcat.com has additional headers for
server: lwsws (well-known header name)
test-custom-header: hello (custom header name)
minimal-secure-streams test is updated to try to recover these both
in direct and -client (via proxy) versions. The corresponding metadata
part of the "mintest" stream policy from warmcat.com is
{
"srv": "server:"
}, {
"test": "test-custom-header:"
},
If built direct, or at the proxy, the stream has access to the static
policy metadata definitions and can store the rx metadata in the stream
metadata allocation, with heap-allocated a value. For client side that
talks to a proxy, only the proxy knows the policy, and it returns rx
metadata inside the serialized link to the client, which stores it on
the heap attached to the stream.
In addition an optimization for mapping static policy metadata definitions
to individual stream handle metadata is changed to match by name.
|
||
|---|---|---|
| .. | ||
| CMakeLists.txt | ||
| minimal-secure-streams.c | ||
| README.md | ||
lws minimal secure streams policy2c
This application parses a JSON policy passed on stdin and emits the equivalent of it in C structs ready for compilation.
This is useful in the case your platform doesn't use a dynamic JSON policy and is space-constrained, you can still form and maintain the policy in JSON, but with this utility convert it into compileable C.
Notice this depends on LWS_ROLE_H1, LWS_ROLE_H2, LWS_ROLE_WS and LWS_ROLE_MQTT build of lws, since it has to be able to work with any kind of policy content.
build
$ cmake . && make
usage
| Commandline option | Meaning |
|---|---|
| -d | Debug verbosity in decimal, eg, -d15 |
$ cat mypolicy.json | lws-minimal-secure-streams-policy2c
(on stdout)
static const uint32_t _rbo_bo_0[] = {
1000, 2000, 3000, 5000, 10000,
};
static const lws_retry_bo_t _rbo_0 = {
.retry_ms_table = _rbo_bo_0,
.retry_ms_table_count = 5,
.conceal_count = 5,
.secs_since_valid_ping = 30,
.secs_since_valid_hangup = 35,
.jitter_percent = 20,
};
static const uint8_t _ss_der_amazon_root_ca_1[] = {
/* 0x 0 */ 0x30, 0x82, 0x03, 0x41, 0x30, 0x82, 0x02, 0x29,
/* 0x 8 */ 0xA0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x13, 0x06,
/* 0x 10 */ 0x6C, 0x9F, 0xCF, 0x99, 0xBF, 0x8C, 0x0A, 0x39,
/* 0x 18 */ 0xE2, 0xF0, 0x78, 0x8A, 0x43, 0xE6, 0x96, 0x36,
/* 0x 20 */ 0x5B, 0xCA, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86,
...