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* pasta: Check for zero d_reclen returned by getdents64() syscallStefano Brivio2022-01-261-1/+1
| | | | | | | | Seen on PPC with some older kernel versions: we seemingly have bytes left to read from the returned array of dirent structs, but d_reclen is zero: this, and all the subsequent entries, are not valid. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* conf, pasta: Explicitly pass CLONE_{NEWUSER,NEWNET} to setns()Stefano Brivio2022-01-261-2/+4
| | | | | | | Only allow the intended types of namespaces to be joined via setns() as a defensive measure. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* passt: Drop <linux/ipv6.h> include, carry own ipv6hdr and opt_hdr definitionsStefano Brivio2022-01-261-2/+0
| | | | | | | This is the only remaining Linux-specific include -- drop it to avoid clang-tidy warnings and to make code more portable. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* passt: Add cppcheck target, test, and address resulting warningsStefano Brivio2021-10-211-4/+7
| | | | | | | ...mostly false positives, but a number of very relevant ones too, in tcp_get_sndbuf(), tcp_conn_from_tap(), and siphash PREAMBLE(). Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* passt: Fix build with gcc 7, use std=c99, enable some more Clang checkersStefano Brivio2021-10-211-1/+2
| | | | | | | | | | | | | | Unions and structs, you all have names now. Take the chance to enable bugprone-reserved-identifier, cert-dcl37-c, and cert-dcl51-cpp checkers in clang-tidy. Provide a ffsl() weak declaration using gcc built-in. Start reordering includes, but that's not enough for the llvm-include-order checker yet. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* passt: Add clang-tidy Makefile target and test, take care of warningsStefano Brivio2021-10-201-1/+1
| | | | | | | Most are just about style and form, but a few were actually serious mistakes (NDP-related). Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* passt: Address gcc 11 warningsStefano Brivio2021-10-201-5/+10
| | | | | | | | | A mix of unchecked return values, a missing permission mask for open(2) with O_CREAT, and some false positives from -Wstringop-overflow and -Wmaybe-uninitialized. Reported-by: Martin Hauke <mardnh@gmx.de> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* netlink, conf: Actually get prefix/mask lengthStefano Brivio2021-10-191-2/+7
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* pasta: Allow nanosleep(2) and clock_nanosleep(2) syscalls tooStefano Brivio2021-10-141-1/+1
| | | | | | ...we need those to wait for terminating processes in the namespace. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* netlink, pasta: Configure MTU of tap interface on --config-netStefano Brivio2021-10-141-3/+3
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* passt, pasta: Completely avoid dynamic memory allocationStefano Brivio2021-10-141-0/+253
Replace libc functions that might dynamically allocate memory with own implementations or wrappers. Drop brk(2) from list of allowed syscalls in seccomp profile. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 05:54:04 +0000