summaryrefslogtreecommitdiffhomepage
AgeCommit message (Collapse)Author
2021-12-01syntax: disallow keywords in object property shorthand notationJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-11-05nl80211: fix premature netlink reply receive abortJo-Philipp Wich
The nl_recvmsgs() logic in uc_nl_request() incorrectly stopped reading the socket before the netlink ACK message was handled for non-multipart replies. This caused subsequent requests to incorrectly receive the ACK of the previous request, leading to a failure to receive the actual reply. Fix this issue by continue reading the socket until either the finish callback for multipart (dump) messages or the ack callback for non- multipart messages was received. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-11-04fs: add utility functionsJo-Philipp Wich
Add three new functions `dirname()`, `basename()` and `lsdir()`. The `basename()` and `dirname()` functions behave like their libc counterparts and return the filename and directory portion of a given path respectively. If the path argument is missing or not a string, null is returned. Examples: dirname("/usr/lib") -> "/usr" dirname("/usr/") -> "/" dirname("usr") -> "." dirname("/") -> "/" dirname(".") -> "." dirname("..") -> "." basename("/usr/lib") -> "lib" basename("/usr/") -> "usr" basename("usr") -> "usr" basename("/") -> "/" basename(".") -> "." basename("..") -> ".." The `lsdir()` function returns a sorted array containing the names of all entries within the given directory path, without the common "." and ".." entries. If the given path is not a directory, cannot be opened or if another system level occurs, null is returned and `fs.error()` can be used to query details. The function takes an optional second argument which may be either a regular expression value or a string. In case a regular expression is given, each directory entry is matched against it. In case a string is provided, it is treated as wildcard (glob) pattern and only directory entries matching the pattern are considered. Examples: lsdir("/sys/class/net") -> [ "eth0", "lo", "wlan0" ] lsdir("/proc", /^[0-9]+$/) -> [ "1", "4", "12", ... ] lsdir("/sys/class/block/", "sd?3") -> [ "sde3", "sdf3" ] Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-11-02nl80211: fix wiphy dump reply merge logicJo-Philipp Wich
Extract the wiphy index from the response message and use it to select the item to merge the fragment information into. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-11-01treewide: fix typo in exported function names and typesJo-Philipp Wich
Fix instances of misspelled "resource". This commit breaks the exported libucode ABI. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-11-01struct: fix PowerPC specific compiler pragma nameJo-Philipp Wich
The "align" pragma was accidentally renamed while refactoring the original module code. Fixes: 402f603 ("lib: introduce struct library") Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-10-31Merge pull request #26 from jow-/lib-add-structJo-Philipp Wich
lib: introduce struct library
2021-10-31lib: introduce struct libraryJo-Philipp Wich
Introduce a new "struct" library which is a port of the Python 3.10 struct module with a reduced set of API functions. It supports the same format patterns and conversions while providing the following methods: struct = require('struct'); buf = struct.pack("fmt", args...); values = struct.unpack("fmt", buf); struct_inst = struct.new("fmt"); buf = struct_inst.pack(args...); values = struct_inst.unpack(buf); Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-10-28LICENSE: add ISC license fileJo-Philipp Wich
While most source files contain the license text in their header, make the repository license explicitly known by putting it here. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-10-25Merge pull request #24 from jow-/add-resolv-libraryJo-Philipp Wich
lib: introduce resolver library
2021-10-23lib: increase refcount when returning cached module instanceJo-Philipp Wich
Subsequent requires of the same module returned the cached module instance without increasing the refcount, leading to use-after-free on VM tear down or garbage collection cycles. Solve this issue by properly incrementing the refcount before returning the cached module instance. Fixes: #25 Fixes: 96f140b ("lib, vm: ensure that require() compiles modules only once") Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-10-22lib: introduce resolver libraryJo-Philipp Wich
This adds a simple, UDP-only DNS resolver library mimicking the operation of the extended busybox nslookup applet. Simply querying a domain name will perform A + AAAA resolving by default: # ucode -mresolv -Rs 'printf("%.J\n", resolv.query("example.com"))' { "example.com": { "A": [ "93.184.216.34" ], "AAAA": [ "2606:2800:220:1:248:1893:25c8:1946" ] } } Passing IP addresses will automatically perform PTR requests: # ucode -mresolv -Rs 'printf("%.J\n", resolv.query("8.8.8.8"))' { "8.8.8.8.in-addr.arpa": { "PTR": [ "dns.google" ] } } # ucode -mresolv -Rs 'printf("%.J\n", resolv.query("2001:4860:4860::8888"))' { "8.8.8.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.4.0.6.8.4.1.0.0.2.ip6.arpa": { "PTR": [ "dns.google" ] } } Additional options for query type and nameserver selection can be passed via a second optional options dictionary: # ucode -mresolv -Rs 'printf("%.J\n", resolv.query([ "openwrt.org", "example.org", "doesnotexist.tld" ], { type: [ "A", "AAAA", "MX" ], nameserver: [ "1.1.1.1", "8.8.4.4" ], timeout: 5000, retries: 2, edns_maxsize: 4096 }))' { "openwrt.org": { "A": [ "139.59.209.225" ], "MX": [ [ 10, "util-01.infra.openwrt.org" ] ], "AAAA": [ "2a03:b0c0:3:d0::1af1:1" ] }, "example.org": { "A": [ "93.184.216.34" ], "AAAA": [ "2606:2800:220:1:248:1893:25c8:1946" ], "MX": [ [ 0, "." ] ] }, "doesnotexist.tld": { "rcode": "NXDOMAIN" } } Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-10-22lib: fix uninitialized memory access on handling %J string formatsJo-Philipp Wich
When parsing the padding size specification of a `J` format, e.g. `%.4J`, the internally called `atoi()` function might read beyond the end of the initialized memory within the format buffer, leading to non-deterministic results. Avoid overreading the initialized memory by parsing the padding length manually digit-by-digit. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-10-12Merge pull request #22 from jow-/introduce-optional-chaining-operatorsJo-Philipp Wich
syntax: introduce optional chaining operators
2021-10-11syntax: introduce optional chaining operatorsJo-Philipp Wich
Introduce new operators `?.`, `?.[…]` and `?.(…)` to simplify looking up deeply nested property chain in a secure manner. The `?.` operator behaves like the `.` property access operator but yields `null` if the left hand side is `null` or not an object. Like `?.`, the `?.[…]` operator behaves like the `[…]` computed property access but yields `null` if the left hand side is `null` or neither an object or array. Finally the `?.(…)` operator behaves like the function call operator `(…)` but yields `null` if the left hand side is `null` or not a callable function. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-24vm: reset callframes before invoking unhandled exception handlerJo-Philipp Wich
Reset all callframes when dealing with an unhandled exception to avoid resuming the code which raised the exception when restarting the VM later, e.g. through uc_vm_call() or uc_vm_invoke(). Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-24vm: clear exception information before calling managed code functionsJo-Philipp Wich
If execution in an existing VM that threw an exception was resumed through uc_vm_call() or uc_vm_invoke(), the exception was never cleared, causing all subsequent calls to return with an exception status as well. Ensure that any preexisting exception information is discarded before executing the requested function in order to start from a clean state. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-24ubus: properly handle signed 64bit values tooJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-23ubus: fix handling signed 16bit and 32bit integersJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-22Merge pull request #21 from jow-/lib-add-nl80211Jo-Philipp Wich
lib: introduce Linux 802.11 netlink binding
2021-09-22nl80211: fix issues spotted by static code analyzerJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-21nl80211: treat signal attr values as signed integersJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-21nl80211: expose sta_info attributesJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-21lib: introduce Linux 802.11 netlink bindingJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-21types: fix invalid memory access on setting non-contiguous array indexesJo-Philipp Wich
When setting an array index which is beyond the end of the last currently preallocated chunk and not evenly divisible by the chunk size, the array entries list was not properly reallocated, resulting in invalid memory writes. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-21main: fix leaking module name when processing -m flagJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-19compiler: properly handle jumps to offset 0Jo-Philipp Wich
When compiling certain expressions as first statement of an ucode program, e.g. a while loop in raw mode, a jump instruction to offset zero is emitted which was incorrectly treated as placeholder by the compiler. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-19tests: support specifying cmdline args in testcase filesJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-19Merge pull request #20 from jow-/lib-add-rtnlJo-Philipp Wich
lib: introduce Linux route netlink binding
2021-09-17types: fix formatting escape sequences for 8 bit charsJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-15rtnl: automatically derive message family from certain address attrsJo-Philipp Wich
# ucode -mrtnl -Rs 'printf("%.J", rtnl.request(rtnl.const.RTM_GETROUTE, 0, { dst: "8.8.8.8" }))' { "family": 2, "tos": 0, "protocol": 0, "scope": 0, "type": 1, "flags": 512, "dst": "8.8.8.8/32", "oif": "onboard", "gateway": "10.11.12.13", "prefsrc": "10.11.12.7", "cacheinfo": { "clntref": 2, "lastuse": 0, "expires": 0, "error": 0, "used": 0, "id": 0, "ts": 0, "tsage": 0 }, "table": 254, "uid": 0 } Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-15rtnl: expose IPv4 and IPv6 devconfig informationJo-Philipp Wich
# ucode -mrtnl -Rs 'printf("%.J", rtnl.request(rtnl.const.RTM_GETLINK, 0, { dev: "lo" }))' { "family": 0, "type": 772, "dev": "lo", "flags": 65609, "address": "00:00:00:00:00:00", "broadcast": "00:00:00:00:00:00", "txqlen": 1000, "mtu": 65536, "carrier": true, "linkmode": 0, "operstate": 0, "num_tx_queues": 1, "num_rx_queues": 1, "af_spec": { "inet": { "conf": { "forwarding": 1, "mc_forwarding": 0, "proxy_arp": 0, "accept_redirects": 1, "secure_redirects": 1, "send_redirects": 1, "shared_media": 1, "rp_filter": 0, "accept_source_route": 1, "bootp_relay": 0, "log_martians": 0, "tag": 0, "arpfilter": 0, "medium_id": 0, "noxfrm": 1, "nopolicy": 1, "force_igmp_version": 0, "arp_announce": 0, "arp_ignore": 0, "promote_secondaries": 0, "arp_accept": 0, "arp_notify": 0, "accept_local": 0, "src_vmark": 0, "proxy_arp_pvlan": 0, "route_localnet": 0, "igmpv2_unsolicited_report_interval": 10000, "igmpv3_unsolicited_report_interval": 1000, "ignore_routes_with_linkdown": 0, "drop_unicast_in_l2_multicast": 0, "drop_gratuitous_arp": 0, "bc_forwarding": 0 } }, "inet6": { "mode": 0, "flags": 2147483648, "conf": { "forwarding": 0, "hoplimit": 64, "mtu6": 65536, "accept_ra": 1, "accept_redirects": 1, "autoconf": 1, "dad_transmits": 1, "rtr_solicits": -1, "rtr_solicit_interval": 4000, "rtr_solicit_delay": 1000, "use_tempaddr": -1, "temp_valid_lft": 604800, "temp_prefered_lft": 86400, "regen_max_retry": 3, "max_desync_factor": 600, "max_addresses": 16, "force_mld_version": 0, "accept_ra_defrtr": 1, "accept_ra_pinfo": 1, "accept_ra_rtr_pref": 1, "rtr_probe_interval": 60000, "accept_ra_rt_info_max_plen": 0, "proxy_ndp": 0, "optimistic_dad": 0, "accept_source_route": 0, "mc_forwarding": 0, "disable_ipv6": 0, "accept_dad": -1, "force_tllao": 0, "ndisc_notify": 0, "mldv1_unsolicited_report_interval": 10000, "mldv2_unsolicited_report_interval": 1000, "suppress_frag_ndisc": 1, "accept_ra_from_local": 0, "use_optimistic": 0, "accept_ra_mtu": 1, "stable_secret": 0, "use_oif_addrs_only": 0, "accept_ra_min_hop_limit": 1, "ignore_routes_with_linkdown": 0, "drop_unicast_in_l2_multicast": 0, "drop_unsolicited_na": 0, "keep_addr_on_down": 0, "rtr_solicit_max_interval": 3600000, "seg6_enabled": 0, "seg6_require_hmac": 0, "enhanced_dad": 1, "addr_gen_mode": 0, "disable_policy": 0, "accept_ra_rt_info_min_plen": 0, "ndisc_tclass": 0, "rpl_seg_enabled": 0 } } }, "proto_down": false, "group": 0, "ifname": "lo" } Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-15rtnl: allow reply nla payloads to be smaller than headsizeJo-Philipp Wich
Some netlink replies contain attributes with embeded payloads whose length depends on the kernel version, e.g. IFLA_INET_CONF and IFLA_INET6_CONF. Deal with such cases by allowing the payloads to be shorter than the expected size and by skipping struct members which would lead to out-of-bounds accesses. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-15lib: introduce Linux route netlink bindingJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-14ci: adjust build prereqs for GitHub as wellJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-09-14ci: add libnl-tiny to prereqsJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-30vm: fix toplevel function call protocolJo-Philipp Wich
In success case, always push the function return value onto the stack even if no call frames are remaining after the function returned. This is needed for host program code invoking ucode functions within a VM context that already ran to completion. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-28fs: fix chown() and rename() error return valuesJo-Philipp Wich
Fixes: dfb7379 ("fs: implement chmod(), chown(), rename() and glob() functions") Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-28tests: disable fuzz tests for nowJo-Philipp Wich
The Fuzz test implementation so far is just boilerplate and fails due to imposed memory limits on the CI runner. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-27types: mark further GC rootsJo-Philipp Wich
Mark reachable native function and ucode function objects during incremental GC steps in order to avoid freeing them prematurely. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-27types: fix comparison of differently signed integersJo-Philipp Wich
Fixes: c79ff39 ("types: handle conversion errors when dealing with negative error indexes") Fixes: 3315b1f ("types: allow negative array indexes") Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-27types: handle conversion errors when dealing with negative error indexesJo-Philipp Wich
Also apply the same logic to array set operations. Fixes: 3315b1f ("types: allow negative array indexes") Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-27types: allow negative array indexesJo-Philipp Wich
Support array[-1], array[-2] etc. to retrieve elements relative to the end of the array values. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-11Merge pull request #15 from jow-/c-apiJo-Philipp Wich
C API wip
2021-07-11treewide: harmonize function namingJo-Philipp Wich
- Ensure that most functions follow the subject_verb naming schema - Move type related function from value.c to types.c - Rename value.c to vallist.c Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-11module: remove unused definesJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-11examples: add libucode usage examplesJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-11types, vm: adjust GC apiJo-Philipp Wich
Provide separate public ucv_gc() and ucv_freeall() functions to perform an incremental and complete GC run respectively. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-11treewide: move header files into dedicated directoryJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-07-11build: install header filesJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 18:53:21 +0000